Rotary Clamp Cylinders - Leading Distributor of Electronic ... · Rotary Clamp Cylinder: Standard...
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Double Guide TypeSeries MK2Tø20, ø25, ø32, ø40, ø50, ø63
Heavy Duty TypeSeries MK2ø20, ø25, ø32, ø40ø50, ø63
StandardSeries MKø12, ø16, ø20, ø25ø32, ø40, ø50, ø63
Guide roller
Piston rod
Rod cover
Series MK/MK2/MK2TRotary Clamp Cylinders
P. 1236
P. 1244
P. 1254
3 times the allowable moment of inertia∗ Comparison with our MK2 series
Rotation mechanism uses 2 guide rollers.Non-rotating accuracy: ±0.9°⇒±0.5°(Clamp part)
Rotation angle: 90°±10°⇒90°±5°∗ Values for ø32, ø40. Comparison with our MK2 series
ø32, ø40
10-4
10-3
10-2
10-1
50 100 200Piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
Standard arm
MK (Standard)
MK2 (Heavy duty type)
MK2T (Double guide type)
� Interchangeable mounting pitch(MK, MK2)
� Small auto switches mountable on 4 surfaces ∗ Bore size ø20, ø25
Horizontal mounting possibleHorizontal mounting possible
Rotation mechanism
1233
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
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Series MK/MK2/MK2TModel Selection
Ι (Moment of inertia)
SeriesItem
Max. piston speed Note) [mm/s]
Non-rotationg accuracy(Clamp part)
200
180
±1.4°
±1.2°
ø12, ø16
ø20, ø25
ø32 to ø63
ø12
ø16
ø20, ø25
ø32, ø40
ø50, ø63
±1.2°
±0.9°
±0.7°
90°±10°
Not allowed
200
MK MK2 MK2T
—
200
—
—
—
—
—
±1.0°
±0.5°
±0.5°
90°±5°
Allowed
Note) “Maximum piston speed” indicates the maximum speed possible when employing a standard arm.
Rotation angle Rotation angle
During unclamping(Extension end)
Counterclockwise
During unclamping(Extension end)
Clockwise
øDArm: Ι1
Arm weight: m1
Clamp jig: Ι2
Clamp jig weight: m2
Example) Find the moment of inertia of the arm.
Find the moment of inertia of the clamp jig.
(Calculation example) Cylinder bore size ø32 A = 0.07 m, B = 0.02 m, S = 0.012 m, L = 0.045 m, D = 0.02 m m1 = 0.16 kg, m2 = 0.15 kg
Find the actual moment of inertia.Ι = Ι1 + Ι2 = (1.6 + 3.0) x 10–4 = 4.6 x 10–4 kg·m2
Calculation Example (ø32, clamp stroke 10 mm)
AB
L
S
Ι1 = m1 · + m1 · – SA2 + B2
12A2
Ι1 = 0.16 x + 0.16 x = 1.6 x 10–4 kg·m2– 0.0120.072 + 0.022
12
2
0.072
Ι2 = 0.15 x + 0.15 x 0.0452 = 3.0 x 10–4 kg·m20.022
8
Ι2 = m2 · + m2 · L2D2
8
1.0 x 10–1
1.0 x 10–2
1.0 x 10–3
4.6 x 10–4
1.0 x 10–4
10 100
MK
MK2
MK2T
120 200
Bore size ø32, ø40
Maximum piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
1000
[Actual calculation example]
SeriesMKMK2
Max. piston speed120 mm/s200 mm/s
Average piston speed Note 1)
75 mm/s125 mm/s
Stroke total
25 mm
Stroke time Note 2)
0.35 sec.0.2 sec.
Note 1) Average piston speed = Maximum piston speed ÷ 1.6.Note 2) Please use the stroke speeds indicated above.
During clamping (Retraction end)Non-rotating accuracy
2
Rotation angle
Horizontal mounting
1234
3-02-56-MK-MK2-MK2T.qxd 09.11.11 1:41 PM Page 1
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Moment of Inertia
Maximum piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
ø20, ø25
10–5
10–4
10–3
10–2
10–1
50 100 200
MK
MK2
MK2T
ø20, ø25 Standard arm single unit
Maximum piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
ø50, ø63
10–4
10–3
10–2
10–1
50 100 200
MK
MK2
MK2T
ø50, ø63 Standard arm single unit
Maximum piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
ø12, ø16
10–6
10–5
10–4
10–3
50 100 200
MK
ø12 Standard arm single unit
ø16 Standard arm single unit
Maximum piston speed [mm/s]
Allo
wab
le m
omen
t of i
nert
ia [k
g·m
2 ]
ø32, ø40
10–4
10–3
10–2
10–1
50 100 200
MK
MK2
MK2T
ø32, ø40 Standard arm single unit
Note) Maximum piston speed is equivalent to approximately 1.6x the average piston speed. (Rough indication)
1235
Model Selection
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
3-02-56-MK-MK2-MK2T.qxd 09.11.11 1:41 PM Page 2
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Rotary Clamp Cylinder: Standard
ø12, ø16, ø20, ø25, ø32, ø40, ø50, ø63Series MK
How to Order
M—
�
Body Option Manufacturable RangeBore size
ø12, ø16ø20 to ø63
Nil
��
F—
�
N��
MF—
�
FN—
�
MK 10Rotary clamp cylinderStandard
Number of auto switches
R20A
NilS
2 pcs.1 pc.
F
Auto switch type
∗ For applicable auto switch models, refer to the below table.
Nil Without auto switch (Built-in magnet)
Body optionNilMFN
Standard (Female thread)Rod end width across flats ∗
With boss on head end ∗
With arm
Rotary direction(Unclamp → Clamp)
ClockwiseCounterclockwise
RL
Bore size12162025
12 mm16 mm20 mm25 mm
32405063
32 mm40 mm50 mm63 mm
Clamp strokeApplicable bore size
ø12 to ø40ø12 to ø63ø50 to ø63
Clamp stroke10 mm20 mm50 mm
Symbol102050
Mounting bracketApplicable bore sizeMounting
Through-hole/Both endstapped common (Standard)Both ends tappedThrough-holeHead end flange
Symbol
B ø12, ø16
ø20 to ø63ABG
∗ Lead wire length symbols: 0.5 m ·········· Nil (Example) M9NW1 m ·········· M (Example) M9NWM3 m ·········· L (Example) M9NWL5 m ·········· Z (Example) M9NWZ
None ·········· N (Example) J79CN
∗ Solid state auto switches marked with “�” are produced upon receipt of order.∗∗ For D-P4DW, ø40 to ø63 are available.∗∗ Only D-P4DW type is assembled at the time of shipment.
∗ Regarding body option manufacturable range, refer to the below table.
∗ Head end flange is equipped with a boss mounting. Be sure to specify body option “F”.
M9BW
M threadRc
NPTG
ø12 to ø25
ø32 to ø63
Port thread type
Nil
TNTF
∗ Since there are other applicable auto switches than listed, refer to page 1253 for details.∗ For details about auto switches with pre-wired connector, refer to pages 1784 and 1785.∗ When mounting models D-M9�(V), M9�W(V), M9�A(V), and A9�(V) with between ø32 and ø50 on sides other than the port side, please order a switch mounting bracket
separately as per the instructions on page 1252.∗ Auto switches are shipped together (not assembled).
Made to Order(Refer to page 1237.)
Applicable Auto Switches/Refer to pages 1719 to 1827 for further information on auto switches.
Type Special functionElectrical
entryWiring
(Output)
Load voltage Lead wire length (m)0.5(Nil)
3(L)
5(Z)
None(N)
Applicableload
Pre-wiredconnector
1(M)
Auto switch model
Perpendicular In-lineDC AC
ø20 to ø63ø12, ø16 ø20 to ø63ø12, ø165 V,12 V
12 V
5 V,12 V12 V5 V,12 V12 V
5 V, 12 V—
�����������—
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———
�————————
���—
��������
IC circuit
—
IC circuit
—
IC circuit
—IC circuit
—
————
������——
—
M9NVM9PVM9BV
M9NWVM9PWVM9BWVM9NAVM9PAVM9BAV
——
J79C
——
M9NM9PM9B—
M9NWM9PWM9BWM9NAM9PAM9BA
F79FP4DW∗∗
Diagnostic indication(2-color indication)
Water resistant(2-color indication)
Yes
Connector
Grommet
Grommet
24 V —Relay,PLC
3-wire (NPN)3-wire (PNP)
2-wire
3-wire (NPN)3-wire (PNP)
2-wire3-wire (NPN)3-wire (PNP)
2-wire4-wire
2-wire (No polarity)
—
Relay,PLC
—
200 V100 V
100 V or less—
24 V or less—
24 V
—3-wire
(NPN equivalent)
2-wireNoYesNoYes
YesGrommet
Connector
Grommet
5 V
—12 V
5 V, 12 V12 V
5 V, 12 V—Diagnostic indication
(2-color indication)
Diagnostic output(2-color indication)
Magnetic field resistant(2-color indication)
�
������
�
������
—
———
��—
—
———
��—
—
——————
IC circuit
—
IC circuit—
IC circuit—
—
——————
A96V
A93VA90V
A96
A93A90———
—
———
A72
A73CA80CA79W
— A72H
Indica
tor lig
ht
Ree
d s
wit
chS
olid
sta
te s
wit
ch
1236
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XB6 Heat resistant cylinder (–10 to 150°C)Symbol Description
Made to Order(For details, refer to page 1853.)
During unclamping(Extension end)80° to 100°(90°±10°)L type
During unclamping(Extension end)
80° to 100°(90°±10°)R type
Clamp part
During clamping (Retraction end)
Non-rotating accuracy±0.7° to 1.4°
Rotary Angle
Bore size (mm)1216202532405063
Part no.MK-A012MK-A016
MK-A020
MK-A032
MK-A050
Accessories
Clamp bolt,Hexagon sockethead cap screw,Hexagon nut,Spring washer
Option/Arm
ActionRotation angle Note 1)
Rotary direction Note 2)
Rotary stroke (mm)Clamp stroke (mm)Theoretical clamp force (N) Note 3)
FluidProof pressure
Operating pressure range
Bore size (mm)Double acting
90° ±10°Clockwise, Counterclockwise
Air1.5 MPa
Ambient and fluid temperature
LubricationPiping port sizeMountingCushionStroke length tolerancePiston speedNon-rotating accuracy (Clamp part) Note 1)
Without auto switch: –10 to 70°C (No freezing)With auto switch: –10 to 60°C (No freezing)
Non-lube
Rubber bumper
50 to 200 mm/s
0.1 to0.6 MPa
Note 4)
0.1 to 1 MPa
12 16 20 25 32 40 50
7.5 9.5 15 1910, 20 20, 50
63
40 75 100 185 300
Through-hole/Bothends tapped common Both ends tapped, Through-hole, Head end flange
525 825
±1.4° ±1.2° ±0.9° ±0.7°
M5 x 0.8
1400
+0.6–0.4
Rc1/8, NPT1/8, G1/8 Rc1/4, NPT1/4, G1/4
Note 1) Refer to “Rotary Angle” figure.Note 2) Direction of rotation viewed from the rod end when the piston rod is retracting.Note 3) At 0.5 MPa.Note 4) Operate within the pressure range of 0.1 to 0.6 MPa for ø63. When using a pressure range of 0.61 to 1.0
MPa, use the new MK series “-X2071” model. (Refer to the MK series catalog (CAT.ES20-214) for details.)
Specifications
Bore size (mm)202532405063
Part no.MK-F020MK-F025MK-F032MK-F040MK-F050MK-F063
Accessories
Centering location ring,Set pin,Bolt for cylinderbody
Mounting Bracket/Flange Note) Theoretical output (N) = Pressure (MPa) x Piston area (cm2) x 100 Operating direction
R: Rod end (Clamp)H: Head end (Unclamp)
Bore size(mm)
12
16
20
25
32
40
50
63
Rod size(mm)
Operatingdirection
6
8
12
12
16
16
20
20
RHRHRHRHRHRHRHRH
Piston area(cm2)
0.8 1.1 1.5
2 2 3
3.7 4.9
6 8
10.512.516.519.628 31.2
0.324 33 45 60
60.8 90.2112 149 182 243 319 380 502 596 851 948
0.5 40 55 75 100 100 149 185 245 300 400 525 625 825 98014001560
0.7 56 77 105 140 139 208 258 341 418 557 731 8701149136519502172
1.0 80 110 150 200 200 298 370 490 600 800105012501648196128013121
Operating pressure (MPa)
Unit: N
Theoretical Output
Clamp stroke(mm)102050
Bore size (mm)
Unit: g
127087—
16100123—
20250290—
25280320—
32500525—
40595640—
50—
11001350
63—
15201805
Mass/Through-hole Mounting
1237
Rotary Clamp Cylinder: Standard Series MK
Bore size (mm)Both ends tappedRod end width across flatsWith boss on head endWith armHead end flange (including mounting bolt)
Unit: g
12———13—
16———32—
20 6 10 2100133
25 7 10 3100153
32 7 21 5200166
40 6 21 7200198
50 7 46 13350345
63 17 46 25350531
Additional Mass
Calculation: (Example) MKG20-10RFN• Standard calculation: MKB20-10R• Extra mass calculation: Both ends tapped
Head end flangeWith boss on head endWith arm
250 g6 g
133 g2 g
100 g491 g
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
198-MK.qxd 10.10.7 4:29 PM Page 1
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No.12345
6
7891011121314
Description MaterialAluminum alloyAluminum alloyAluminum alloy
Copper bearing materialStainless steelStainless steelCarbon steel
UrethaneCopper alloy
Stainless steel—
Chromium molybdenum steelSpring steel
Stainless steelCarbon tool steel
NoteHard anodizedHard anodized
ø32 to ø63 onlyNitriding
ø12 to ø25 Nitridingø32 to ø63 Heated, Nickel plated
ø20 to ø32 onlyExcept ø12, ø16
Sharp end section: 90°
Used at ø12, ø16, ø32 to ø63
Rod coverCylinder tubePistonBushingGuide pin
Piston rod
BumperRing nutScraper pressureMagnetHexagon socket head set screwRound R-type retaining ringParallel pinType C retaining ring
Component PartsNo.15161718192021
22
232425262728
Description MaterialRolled steel
Chromium molybdenum steelRolled steel
Chromium molybdenum steelHard steel
Aluminum alloyRolled steel
Aluminum alloyPhosphor bronze
NBRNBRNBRNBR
Chromiummolybdenum steel
Note
Except ø12, ø16Except ø12, ø16
ø12, ø16 onlyExcept ø12, ø16
ArmClamp boltHexagon nutHexagon socket head cap screwSpring washerCentering location ringFlangeHexagon socket head cap screw
Spacer for switch typeCoil scraperPiston sealGasketRod sealO-ring
Component Parts
ø20, ø25: 2ø32 to ø63: 4
Qty.
Replacement Parts: Seal Kitø12
MK-12-PSø16
MK-16-PSø20 to ø32
Not able to disassembleSet of nos. above @4 @5 @6 @7 @8
ø40MK-40-PS
ø50MK-50-PS
ø63MK-63-PS
Bore size (mm)Kit no.Content
∗ Seal kit includes @4 to @8. Order the seal kit, based on each bore size (except ø20 to ø32).∗ Since the seal kit does not include a grease pack, order it separately.
Grease pack part no.: GR-S-010 (10g)
Name plate
@3
@7 r i !1 t q @6 u !0 @5 w ey !2 @4 o
!6
!7
!5
!8
!9
@8
!4@1 @2
@0
y
!3
Construction
MK�12, 16 MK�20, 25
MK�32
MK�40 to 63
With arm (N)
Rod end width across flats (M)
With boss on head end (F)
Head end flange (G)
1238
Series MK
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Note) Maximum piston speed (mm/s)
Mom
ent o
f ine
rtia
(kg
·m2 )
Operatingrange
Operatingrange
MK�50/63
MK�32/40
MK�20/25
MK�12/16
MK�50/63
MK�32/40
MK�20/25
MK�16
MKB12
Cylinder model C D8 8 8 8
10
9
10.5
7
6.511.5
10.5
50 60 50 60 75 85 75 85 85 95 75 85 95130100130
Mounting bolt sizeM3 x 50 LM3 x 60 LM3 x 50 LM3 x 60 LM5 x 75 LM5 x 85 LM5 x 75 LM5 x 85 LM5 x 85 LM5 x 95 LM5 x 75 LM5 x 85 LM6 x 95 LM6 x 130 LM8 x 100 LM8 x 130 L
MKB12-10MKB12-20MKB16-10MKB16-20MKB20-10MKB20-20MKB25-10MKB25-20MKB32-10MKB32-20MKB40-10MKB40-20MKB50-20MKB50-50MKB63-20MKB63-50
Precautions
Clamp Arm Mounting
Precautions for Designing and Mounting Arms
1. Use a clamp arm that is available as an option.To fabricate a clamp arm, make sure that the allowable bending moment and the inertial moment will be within the specified range.If a clamp arm that exceeds the specified value is installed, the internal mechanism in the cylinder could become damaged.
Caution
Ensuring Safety1. If one side of the piston is pressurized by sup-
plying air with the clamp arm attached, the piston will move vertically while the clamp arm rotates. This operation could be hazardous to personnel, as their hands or feet could get caught by the clamp arm, or could lead to equipment damage. Therefore, it is important to secure as a danger zone a cylindrical area with the length of the clamp arm as its radius, and the stroke plus 20 mm as its height.
Installation and Adjustment/Clamp Arm Removal and Reinstallation
1. During the removal or reinstallation of the clamp arm, make sure to use a wrench or a vise to secure the clamp arm before remov-ing or tightening the bolt.This is to prevent the bolt tightening torque from being applied to the piston rod, which could damage the cylinder’s internal mechanism.
Mounting Bolt for MKB
Note) Be sure to use a flat washer to mount ø12 and ø16 cylinders via through-holes.
When arms are to be made separately, their length and weight should be within the following range.
1. Allowable bending momentUse the arm length and operating pressure within Graph (1) for allowable bending mo-ment loaded piston rod.
2. Moment of inertiaWhen the arm is long and heavy, damage of internal parts may be caused due to iner-tia. Use the inertia moment and cylinder speed within Graph (2) based on arm require-ments.
Graph (1)
Graph (2)
When arm length is 8 cm, pressure should be less thanMK�20/25: 0.45 MPaMK�32/40: 0.55 MPa.Note) Operate within the pressure range of
0.1 to 0.6 MPa for ø63. When using a pressure range of 0.61 to 1.0 MPa, use the new MK series “-X2071” model. (Refer to the MK series catalog (CAT.ES20-214) for details.)
When arm’s moment of inertia is 3 x 10–4 kg·m2, cylinder speed should be less thanMK�20/25: 65 mm/sMK�32/40: 150 mm/s.For calculating moment of inertia, refer to pages 1234, 1235 and 1264.Note) Maximum piston speed is equivalent to
approximately 1.6x the average piston speed. (Rough indication)
• To attach and detach the arm to and from the piston rod, fix the arm with a wrench or vise and then tighten the bolt.(If an excessive force is applied in the rotary direction, it may bring about the damage to the internal mechanism.)Refer to the following table for the tightening torque for mounting.
Bore size (mm)1216
20, 2532, 4050, 63
Proper tightening torque0.4 to 0.6 2 to 2.4
4 to 6 8 to 1014 to 16
(N·m)
Be sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actua-tor and Auto Switch Precautions.
Arm
leng
th l
(cm
)
Operating pressure (MPa)
Hexagon wrenchkey
Arm
Wrench
Mounting bolt
Mounting: Mounting bolt for through-hole type is available.Ordering: Add the word “MKB” to the mounting bolt size.Example) M5 x 75 L (MKB)
Flatwasher
1239
Rotary Clamp Cylinder: Standard Series MK
Note) MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
198-MK.qxd 10.10.7 4:29 PM Page 2
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U
3
Q + 2 x Clamp stroke
4
3 5.5
R + Clamp stroke
S
øO
h9
ø12
2 x M5 x 0.8(Piping port)
8 to 18
E F25
K
�A
LB
C
–0.1�10–0.2
2 x ø5.5 through2 x 2 x ø9 counterbore depth 7
M8 x 1.25Effective thread depth 11
K
L
R + Clamp stroke(Basic)
1010
M6 x 1.0
Auto switchMinimum bending radiusof lead wire 10
E effective thread depth F2 x 4 x M4 x 0.7Effective depth 7
2 x M5 x 0.8
4 x
ø3.
5
Flat washer4 pcs.
35.5 + Clamp stroke
48 + 2 x Clamp stroke2 x 4 x ø6.5Counterbore depth 4
R thread
M + Clamp stroke
øB
�D
øG
H9
øH
�C
�A
N
S
O PQ
Model
MKB20MKB25
A36
40
B46.8
52
C36
40
E49
54.5
F25.5
28.5
K L Oh9 Q72.5
73.5
R62
63
S31
32
U4
5
0–0.052
0–0.052
20
23
13.5
16
±0.15
±0.15
±0.15
±0.15
7.5
8
Note) Dimension when the rod is extended is to be added to clamp stroke plus rotary stroke.
(mm)
A B C D E F G H25
29
32
38
15.5
20
5
7
M3 x 0.5
M5 x 0.8
5.5
6.5
11h9
14h9
6
8
MKB12MKB16
Model0
–0.043
0–0.043
(mm)
Model M18.5
21.5
N 8
11
O29
36
P20
25
Q4
5
RM3 x 0.5
M4 x 0.7
S 8
11
MKB12-��NMKB16-��N
(mm)
Through-hole (Basic): MKB
Both ends tapped: MKA
ø12
ø20, ø25
ø16
With arm: MK� -��N1216
Dimensions: ø12, ø16, ø20, ø25
2 x ø3.3 depth 3+0.15+0.05
1240
Series MK
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1240
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ø
ø
Model
MKG20MKG25
B60
64
C39
42
D E±0.1
±0.1
25.5
28
±0.15
±0.15
48
52
(mm)
Model
MK�20-��FMK�25-��F
Ah90
–0.043
0–0.043
13
15
(mm)
12 to 22
R + Clamp stroke
+0.152 x ø6.3+0.05
(Special cap bolt)2 x M6 x 1.0
2 x ø6.6
42.5 + Clamp stroke
D
C
E B
Head end flange: MKG With boss on head end
Rod end width across flats: MK� -��M2025With arm: MK� -��N20
25
22 + Clamp stroke
2 x ø5.2
M6 x 1.0
1241
Rotary Clamp Cylinder: Standard Series MK
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1241
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Model
MKAMKA50MKA63
AM6 x 1.0
M8 x 1.25
M10 x 1.5
B10
14
18
3240
Note 1) Above figures are for the D-M9�, M9�W, M9�A, A9�.Note 2) Dimension when the rod is extended is to be added to clamp stroke plus rotary stroke.
Dimensions: ø32, ø40, ø50, ø63
(mm)
(mm)
MKB32MKB40MKB50MKB63
45
52
64
77
60
69
86
103
34
40
50
60
M6 x 10
M8 x 1.25
M10 x 1.5
10
14
18
5.5
5.5
6.6
9
9 depth 7
9 depth 7
11 depth 8
14 depth 10.5
M10 x 1.5
M10 x 1.5
M12 x 1.75
M12 x 1.75
12
12
15
15
14
14
19
19
4.5
5
7
7
71.5
65
76.5
80
37
29.5
34
35
7.5
8
10.5
10.5
16
16
20
20
3
3
3.5
3.5
6.5
6.5
7.5
7.5
–0.1–0.2
–0.1–0.2
–0.1–0.2
–0.1–0.2
14
14
17
17
0–0.062
0–0.062
30
30
37
48
0–0.062
0–0.062
±0.15
±0.15
20
24
30
35
±0.15
±0.15
±0.15
±0.15
7
7
8
9
±0.15
±0.15
93.5
94.5
112
115
�A B C �D M NG H I J K L O P Q R S T UV
TN— TFX Yh9 ZModel
Rc 1/8
Rc 1/8
Rc 1/4
Rc 1/4
NPT 1/8
NPT 1/8
NPT 1/4
NPT 1/4
G 1/8
G 1/8
G 1/4
G 1/4
K
L
(ø3.3)TS
Q + 2 x Clamp stroke
R + Clamp stroke
øU
Z
øY
h9
5.5
X
Minimum lead wire bending radius 10
Auto switch
2 x V
K
CO
P
L
A
øB
I thread effective depth J
2 x 4 x øH counterbore
4 x øG through
2 x ø3.3 depth 3+0.15+0.05
DC
R + Clamp stroke(Basic)
Through-hole (Basic): MKB
Both ends tapped: MKA
1242
Series MK
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1242
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GC H
+0.152 x ø6.3+0.05
F + Clamp strokeC + Clamp stroke
2 x øG
øB
A
D
F E
Model
MKG32MKG40MKG50MKG63
A8
8
9
9
B 65
72
89
108
C48
54
67
80
F5.5
5.5
6.6
9
D E GM6 x 1.0
M6 x 1.0
M8 x 1.25
M10 x 1.5
±0.1
±0.1
34
40
50
60
±0.1
±0.1
±0.15
±0.15
56
62
76
92
±0.15
±0.15
Model
MK�32-��FMK�40-��FMK� -��F
Ah90
–0.052
0–0.052
0–0.062
21
28
355063
A18
18
22
22
B67
67
88
88
C20
20
22
22
D45
45
65
65
F35.5
43
53
52.5
G
15 to 25
30 to 40
Model
MK�32-��NMK�40-��NMK�50-��NMK�63-��N
HM8 x 1.25
M8 x 1.25
M10 x 1.5
M10 x 1.5
A6
6
8
8
B14
14
18
18
C53.5
61
77
76.5
D36
36
46
46
E18
18
23
23
F 9
9
11.5
11.5
G6.2
6.2
8.2
8.2
Model
MK�32-��MMK�40-��MMK�50-��MMK�63-��M
(mm) (mm)
(mm) (mm)
Head end flange: MKG With boss on head end
With arm Rod end width across flats
4 x G (Special cap bolt)
4 x øFR + Clamp strokeE B
B D
øA
h9
D
CA
A
1243
Rotary Clamp Cylinder: Standard Series MK
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1243
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Rotary Clamp Cylinder: Heavy Duty Type
ø20, ø25, ø32, ø40, ø50, ø63Series MK2
MK2 10Rotary clamp cylinderHeavy duty type
Number of auto switches
R20B
NilS
2 pcs.1 pc.
F
Auto switch type
∗ For applicable auto switch models, refer to the below table.
Nil Without auto switch (Built-in magnet)
Body optionNilFN
Standard (Female thread)With boss on head endWith arm
Rotary direction(Unclamp → Clamp)
ClockwiseCounterclockwise
RL
Bore size202532
20 mm25 mm32 mm
405063
40 mm50 mm63 mm
Clamp strokeClamp stroke
10 mm20 mm50 mm
Applicable bore sizeø20 to ø40ø20 to ø63ø50 to ø63
Symbol102050
Mounting bracketThrough-hole/Both ends tapped common (Standard)Head end flange
BG
M9BW
M threadRc
NPTG
ø20, ø25
ø32 to ø63
Port thread type
Nil
TNTF
∗ Head end flange is equipped with a boss mounting. Be sure to specify body option “F”.
Applicable Auto Switches/Refer to pages 1719 to 1827 for further information on auto switches.
—
Relay,PLC
—
200 V100 V
100 V or less—
24 V or less—
24 V
—3-wire
(NPN equivalent)
2-wireNoYesNoYes
Yes
Connector
5 V
—12 V
5 V, 12 V12 V
5 V, 12 V—
�
������
�
������
—
———
��—
—
———
��—
—
——————
IC circuit
—
IC circuit—
IC circuit—
—
——————
A96V
A72A93VA90VA73CA80CA79W
A96
A72HA93A90———Grommet
Type Special function Electricalentry
Wiring(Output)
Load voltage
DC AC
Lead wire length (m)0.5(Nil)
3(L)
5(Z)
None(N)
Applicableload
Pre-wiredconnector
1(M)
Auto switch model
PerpendicularIn-line
ø40 to ø63ø20 to ø32
Yes
Connector
3-wire (NPN)3-wire (PNP)
2-wire
3-wire (NPN)3-wire (PNP)
2-wire3-wire (NPN)3-wire (PNP)
2-wire4-wire
2-wire (No polarity)
24 V —Relay,PLC
P4DW∗∗—
5 V,12 V
12 V
5 V,12 V12 V5 V,12 V12 V
5 V, 12 V—
�����������—
������������
������������
———
�————————
���—
��������
IC circuit
—
IC circuit
—
IC circuit
—IC circuit
—
————
������——
M9NVM9PVM9BVJ79C
M9NWVM9PWVM9BWVM9NAVM9PAVM9BAV
——
M9NM9PM9B
—M9NWM9PWM9BWM9NAM9PAM9BAF79F
How to Order
Diagnostic indication(2-color indication)
Water resistant(2-color indication)
Grommet
Grommet
Grommet
Diagnostic indication(2-color indication)
Diagnostic output(2-color indication)
Magnetic field resistant(2-color indication)
Indica
tor lig
ht
Ree
d s
wit
chS
olid
sta
te s
wit
ch
∗ Lead wire length symbols: 0.5 m ·········· Nil (Example) M9NW1 m ·········· M (Example) M9NWM3 m ·········· L (Example) M9NWL5 m ·········· Z (Example) M9NWZ
None ·········· N (Example) J79CN
∗ Solid state auto switches marked with “�” are produced upon receipt of order.∗∗ For D-P4DW, ø40 to ø63 are available.∗∗ Only D-P4DW type is assembled at the time of shipment.
∗ Since there are other applicable auto switches than listed, refer to page 1253 for details.∗ For details about auto switches with pre-wired connector, refer to pages 1784 and 1785.∗ When mounting models D-M9�(V), M9�W(V), M9�A(V), and A9�(V) with between ø32 and ø50 on sides other than the port side, please order a switch mounting bracket
separately as per the instructions on page 1252.∗ Auto switches are shipped together (not assembled).
1244
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1244
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During unclamping(Extension end)80° to 100°(90°±10°)L type
During unclamping(Extension end)
80° to 100°(90°±10°)R type
Clamp part
During clamping (Retraction end)
Non-rotating accuracy±0.7° to 1.2°
Rotary Angle
Action
Rotation angle Note 1)
Rotary direction Note 2)
Rotary stroke (mm)
Clamp stroke (mm)
Theoretical clamp force (N) Note 3)
Fluid
Proof pressure
Operating pressure range
Ambient and fluid temperature
Lubrication
Piping port size
Mounting
Cushion
Stroke length tolerance
Piston speed
Non-rotating accuracy (Clamp part)
Bore size (mm)
Double acting
90° ±10°Clockwise, Counterclockwise
Air
1.5 MPa
Without auto switch: –10 to 70°C (No freezing)
With auto switch: –10 to 60°C (No freezing)
Non-lube
Through-hole/Both ends tapped common, Head end flange
Rubber bumper
50 to 200 mm/s
20 25 32 40 50 63
9.5 15 19
20, 5010, 20
100 185 300 525 825 1400
±1.2° ±0.9° ±0.7°
M5 x 0.8
+0.6–0.4
Rc1/8, NPT1/8, G1/8 Rc1/4, NPT1/4, G1/4
0.1 to 0.6 MPa
Note 4)
0.1 to 1 MPa
Note 1) Refer to “Rotary Angle” figure.Note 2) Direction of rotation viewed from the rod end when the piston rod is retracting.Note 3) At 0.5 MPa.Note 4) Operate within the pressure range of 0.1 to 0.6 MPa for ø63. When using a pressure range of 0.61 to 1.0
MPa, use the new MK series “-X2071” model. (Refer to the MK series catalog (CAT.ES20-214) for details.)
Note) Theoretical output (N) = Pressure (MPa) x Piston area (cm2) x 100 Operating directionR: Rod end (Clamp)H: Head end (Unclamp)
Bore size(mm)
20
25
32
40
50
63
Rod size(mm)
Operatingdirection
12
12
16
16
20
20
R
H
R
H
R
H
R
H
R
H
R
H
Piston area(cm2)
2
3
3.7
4.9
6
8
10.5
12.5
16.5
19.6
28
31.2
0.3
60.8
90.2
112
149
182
243
319
380
502
596
851
948
0.5
100
149
185
245
300
400
525
625
825
980
1400
1560
0.7
139
208
258
341
418
557
731
870
1149
1365
1950
2172
1.0
200
298
370
490
600
800
1050
1250
1648
1961
2801
3121
Operating pressure (MPa)
Unit: N
Theoretical Output
Clamp stroke(mm) 20
260
300
—
25295
335
—
32353
555
—
40635
680
—
50—
1170
1420
63
—
1620
1890
102050
Bore size (mm)
Unit: g
Mass/Through-hole Mounting
Bore size (mm)202532405063
Part no.
MK-A020
MK-A032
MK-A050
Accessories
Clamp bolt,Hexagon sockethead cap screw,Hexagon nut,Spring washer
Option/Arm
Bore size (mm)202532405063
Part no.MK2-F020MK2-F025MK2-F032MK2-F040MK2-F050MK2-F063
Accessories
Centering location ring,Set pin,Bolt for cylinderbody
Mounting Bracket/Flange
20 2
100
133
25 3
100
153
32 5
200
166
40 7
200
198
50 13
350
345
63 25
350
531
Bore size (mm)
With boss on head end
With arm
Head end flange (including mounting bolt)
Unit: g
Additional Mass
Calculation: (Example) MK2G20-10RFN• Standard calculation: MK2B20-10R• Extra mass calculation: Head end flange
With boss on head endWith arm
260 g133 g
2 g100 g495 g
1245
Specifications
Rotary Clamp Cylinder: Heavy Duty Type Series MK2
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
198-MK.qxd 10.10.7 4:29 PM Page 3
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!6
!7
!5
!8
!9
!4
No.12345
6
789101112131415
DescriptionRod coverCylinder tubePistonBushingGuide pin
Piston rod
BumperRing nutScraper pressureMagnetHexagon socket head set screwRound R-type retaining ringName plateType C retaining ringArm
MaterialAluminum alloyAluminum alloyAluminum alloy
Copper bearing materialStainless steelStainless steelCarbon steel
UrethaneCopper alloy
Stainless steel—
Chromium molybdenum steelSpring steelAluminum
Carbon tool steelRolled steel
Note
ø32 to ø63 onlyNitriding
ø20, ø25 Nitridingø32 to ø63 Heated, Nickel plated
ø20 to ø32 only
Sharp end section: 90°
ø40 to ø63 only
Component PartsNo.161718192021
22
2324252627282930
DescriptionClamp boltHexagon nutHexagon socket head cap screwSpring washerCentering location ringFlangeHexagon socket head cap screwO-ringCoil scraperPiston sealGasketRod sealParallel pinWear ringBumper B
MaterialChromium molybdenum steel
Rolled steelChromium molybdenum steel
Hard steelAluminum alloy
Rolled steel
NBRPhosphor bronze
NBRNBRNBR
Stainless steelResin
Urethane
Chromiummolybdenum steel
Note
Component Parts
Qty.ø20, ø25: 2ø32 to ø63: 4
Replacement Parts: Seal Kit20 25
Not able to disassemble32 40
MK2-40-PS50
MK2-50-PS63
MK2-63-PSBore size (mm)
Kit no.Content
∗ Seal kit includes @3 to @7. Order the seal kit, based on each bore size.∗ Since the seal kit does not include a grease pack, order it separately.
Grease pack part no.: GR-S-010 (10g)
Set of nos. above @3 @4 @5 @6 @7
MK2�20, 25 With arm (N)
MK2�32 With boss on head end (F)
MK2�40 to 63 Head end flange (G)
Construction
y !2 @4 o @7 r i !1 t q @6 u !0 @5 w e
@3
!3 @9 #0
@0
@1 @2
@8
1246
Series MK2
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1246
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Arm
Wrench
Hexagon wrenchkey
Precautions for Designing and Mounting Arms
Clamp Arm Mounting1. Use a clamp arm that is available as an option.
To fabricate a clamp arm, make sure that the allowable bending moment and the inertial moment will be within the specified range.If a clamp arm that exceeds the specified value is installed, the internal mechanism in the cylinder could become damaged.
Caution
Ensuring Safety1. If one side of the piston is pressurized by sup-
plying air with the clamp arm attached, the piston will move vertically while the clamp arm rotates. This operation could be hazardous to personnel, as their hands or feet could get caught by the clamp arm, or could lead to equipment damage. Therefore, it is important to secure as a danger zone a cylindrical area with the length of the clamp arm as its radius, and the stroke plus 20 mm as its height.
Installation and Adjustment/Clamp Arm Removal and Reinstallation
1. During the removal or reinstallation of the clamp arm, make sure to use a wrench or a vise to secure the clamp arm before remov-ing or tightening the bolt.This is to prevent the bolt tightening torque from being applied to the piston rod, which could damage the cylinder’s internal mechanism.
Mounting Bolt for MK2BMounting: Mounting bolt for through-hole type is available.Ordering: Add the word “MK2B” to the mounting bolt size.Example) M5 x 75 L (MK2B)
When arms are to be made separately, their length and mass should be within the following range.
1. Allowable bending momentUse the arm length and operating pressure within Graph (1) for allowable bending mo-ment loaded piston rod.
2. Moment of inertiaWhen the arm is long and heavy, damage of internal parts may be caused due to iner-tia. Use the inertia moment and cylinder speed within Graph (2) based on arm require-ments.
Graph (1)
Graph (2)
When arm length is 8 cm, pressure should be less thanMK2�20/25: 0.45 MPaMK2�32/40: 0.55 MPa.Note) Operate within the pressure range of
0.1 to 0.6 MPa for ø63. When using a pressure range of 0.61 to 1.0 MPa, use the new MK series “-X2071” model. (Refer to the MK series catalog (CAT.ES20-214) for details.)
When arm’s moment of inertia is 5 x 10–3 kg·m2, cylinder speed should be less thanMK2�32/40: 66 mm/sMK2�50/63: 120 mm/s.For calculating moment of inertia, refer to pages 1234, 1235 and 1264.Note) Maximum piston speed is equivalent to
approximately 1.6x the average piston speed. (Rough indication)
• To attach and detach the arm to and from the piston rod, fix the arm with a wrench or vise and then tighten the bolt.(If an excessive force is applied in the rotary direction, it may bring about the damage to the internal mechanism.)Refer to the following table for the tightening torque for mounting.
Cylinder model C
8.5
10.5
10
6
10.510.5
9
D 75 85 80 90 90100 80 90105135105135
Mounting bolt sizeM5 x 75 LM5 x 85 LM5 x 80 LM5 x 90 LM5 x 90 LM5 x 100 LM5 x 80 LM5 x 90 LM6 x 105 LM6 x 135 LM8 x 105 LM8 x 135 L
MK2B20-10MK2B20-20MK2B25-10MK2B25-20MK2B32-10MK2B32-20MK2B40-10MK2B40-20MK2B50-20MK2B50-50MK2B63-20MK2B63-50
l
Note) Be sure to use a flat washer to mount cylinders via through-holes.
Note) Maximum piston speed (mm/s)
10–4
10–3
10–2
2
4
6
2
4
6
2
3 MK2�50/63
MK2�32/40
MK2�20/25
Mom
ent o
f ine
rtia
(kg
·m2 )
50 100 20066 120
Bore size (mm)20, 2532, 4050, 63
Proper tightening torque4 to 6
8 to 1014 to 16
(N·m)
PrecautionsBe sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actua-tor and Auto Switch Precautions.
Mounting bolt
Flatwasher
Operatingrange
Operating pressure (MPa)0.1 0.2 0.4 0.6 1
0.45 0.55
2
4
6
8
10
20MK2�50/63
MK2�32/40
MK2�20/25
Arm
leng
th l
(cm
)
Note)
Operatingrange
1247
Rotary Clamp Cylinder: Heavy Duty Type Series MK2
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
198-MK.qxd 10.10.7 4:29 PM Page 4
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F
G
L
3
I + 2 x Clamp stroke
4
3 5.5(ø5.
5)
J + Clamp stroke
K
17
øH
h9
ø12
M6 x 1
2 x M5 x 0.8
D E25
F
�A
G
BC
–0.1�10–0.2
2 x ø5.5 through2 x 2 x ø9 counterbore depth 7
M8 x 1.25Effective thread depth 11
Dimensions: ø20, ø25
Through-hole/Both Ends Tapped Common (Standard)
Note) Dimension when the rod is extended is to be added to clamp stroke plus rotary stroke.
(mm)
Model
MK2B20MK2B25
�A36
40
B46.8
52
C36
40
D49
54.5
E25.5
28.5
I75.5
78.5
J62.5
65.5
K31
32
L4
5
F G±0.15
±0.15
13.5
16
±0.15
±0.15
7.5
8
øHh90
–0.052
0–0.052
20
23
Head End FlangeModel
MK2G20MK2G25
A60
64
B39
42
C D±0.1
±0.1
25.5
28
±0.15
±0.15
48
52
(mm)
With Boss on Head End
Model
MK2�20-��FMK2�25-��F
øAh90
–0.043
0–0.043
13
15
(mm)
12 to 22
2 x M6 x 1 (Special cap bolt)
+0.152 x ø6.3+0.05
2 x ø6.6
M6 x 1.0
24.5 + Clamp stroke
J + Clamp stroke
With arm
CB
D A
øA
h9
2 x ø3.3 depth 3+0.15+0.05
1248
Series MK2
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1248
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Note) The below figures illustrate auto switches D-M9�, M9�W, M9�A, and A9�.
Through-hole/Both Ends Tapped Common (Standard)
Note 1) The cylinder rod is retracted.Note 2) Rotary direction is viewed from the rod end when the piston rod is retracting.Note 3) Dimension when the rod is extended is to be added to clamp stroke plus rotary stroke.
(mm)
MK2B32MK2B40MK2B50MK2B63
45
52
64
77
60
69
86
103
34
40
50
60
54
61
73
86
31.5
35
41
47.5
5.5
5.5
6.6
9
12
12
15
15
9 depth 7
9 depth 7
11 depth 8
14 depth 10.5
14
14
17
17
–0.1–0.2
–0.1–0.2
–0.1–0.2
–0.1–0.2
M10 x 1.5
M10 x 1.5
M12 x 1.75
M12 x 1.75
M6 x 1.0
M6 x 1.0
M8 x 1.25
M10 x 1.5
±0.15
±0.15
±0.15
±0.15
20
24
30
35
±0.15
±0.15
±0.15
±0.15
7
7
8
9
17
17
22
28.5
14
14
19
19
4.5
5
7
7
101.5
102.5
122
125
76
70
81.5
85
37
29.5
34
35
7.5
8
10.5
10.5
16
16
20
20
30
30
37
48
0–0.062
0–0.062
0–0.062
0–0.062
3
3
3.5
3.5
6.5
6.5
7.5
7.5
Rc 1/8
Rc 1/8
Rc 1/4
Rc 1/4
NPT 1/8
NPT 1/8
NPT 1/4
NPT 1/4
G 1/8
G 1/8
G 1/4
G 1/4
Model �A B C E F øG JøH�D I MK L N O P Q R S T øU X øYh9 ZV
TN TF—
With Arm (mm)
Model
MK2�32-��NMK2�40-��NMK2�50-��NMK2�63-��N
GA18
18
22
22
B67
67
88
88
C20
20
22
22
D45
45
65
65
E39
46
58
57.5
F
15 to 25
30 to 40
Head End Flange (mm)
Model
MK2G32MK2G40MK2G50MK2G63
A8
8
9
9
øF5.5
5.5
6.6
9
GM8 x 1.25
M8 x 1.25
M10 x 1.5
M10 x 1.5
M6 x 1.0
M6 x 1.0
M8 x 1.25
M10 x 1.5
B 65
72
89
108
C48
54
67
80
D E±0.1
±0.1
34
40
50
60
±0.1
±0.1
±0.15
±0.15
56
62
76
92
±0.15
±0.15
(mm)
Model
MK2�32-��FMK2�40-��FMK2� -��F
øAh90
–0.052
0–0.052
0–0.062
21
28
35
CO
P
L
D
K
A
C
øB
K
L
2 x 4 x N
Z X
Q + 2 x Clamp stroke
S T
R + Clamp stroke
øY
h9
øU
5.5
2 x 4 x øHcounterbore
4 x øG through
I thread length J
2 x ø3.3 depth 3+0.15+0.05
(ø3.3)
Minimum bending radius of lead wire 10
Auto switch2 x 4 x M
2 x V
Dimensions: ø32, ø40, ø50, ø63
4 x G (Special cap bolt)
4 x øF
+0.152 x ø6.3+0.05
DC
CG F
E B
B D
R + Clamp stroke A
A
E + Clamp stroke
5063
With Boss on Head End
øA
h9
1249
Rotary Clamp Cylinder: Heavy Duty Type Series MK2
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1249
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
≅≅
Auto Switch Proper Mounting Position (Detection at Stroke End) and its Mounting Height
ø12 ø16
a) b)
When mounted
a) b)
When mounted
D-M9�VD-M9�WVD-M9�AVLD-A9�V
D-M9�D-M9�WD-M9�ALD-A9�
Note 1) ( ): D-A93Note 2) Size W is suitable for mounting models D-M9�, D-M9�W, D-M9�AL, and D-A9�.Note 3) When setting an auto switch, confirm the operation and adjust its mounting position.
Applicable Cylinders: Series MK
Auto Switch Mounting Height (mm)
12
16
D-A9�VD-M9�VD-M9�WVD-M9�AVL
Bore size
Auto switchmodel
Hs19
21
Hs17
19
Auto Switch Proper Mounting Position (mm)
12
16
BA W
1.5 (4)
2 (4.5)
BA W
0
0
7.5
8
4.5
4
11.5
12
5.5
6
D-A9�D-A9�V
Bore size
Auto switchmodel
D-M9�/M9�VD-M9�W/M9�WVD-M9�AL/M9�AVL
1250
Series MK/MK2
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1250
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
BA
ø20, ø25D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVLD-A9�D-A9�V
ø32 to ø63 ø20, ø25 ø32 to ø63
Auto switchmodel
Bore size
3.5
4.5
10
3.5
5
10
4
6.5
9.5
4
5.5
9.5
4
6.5
9.5
5
6.5
11.5
20 25 32 40 50 63
D-A9�/A9�V
D-M9�/M9�VD-M9�W/M9�WVD-M9�AL/M9�AVL
(mm)
∗ Since this is a guideline in-cluding hysteresis, not meant to be guaranteed. (Assuming approximately ±30% dispersion.) There may be the case it will vary substantially de-pending on an ambient en-vironment.
∗ Figures for models D-M9�(V), M9�W(V), M9�A(V)L, and A9�(V) with ø12 or ø16 (MK), or ø32 or more (MK, MK2) indicate the operating range when using the existing auto switch-mounting groove, without using auto switch mounting bracket BQ2-012.
Operating Range
5.5 5 6 6 6 6.5
D-F7�/J79D-F7�V/J79CD-F7�W/F7�WVD-J79WD-F79F/F7BALD-F7BAVL/F7NTL
— — — 5 5 5 D-P4DWL
12 12 12 11 10 12
13 13 13 14 14 16
D-A7�/A80D-A7H/A80HD-A73C/A80CD-A79W
Auto switchmodel
Bore size
2
3.5
6
2.5
4
7.5
3.5
5
10
3.5
6
10
4
5.5
9.5
4
5
9.5
4
6
9.5
5
6.5
11.5
12 16 20 25 32 40 50 63
D-M9�W/M9�WVD-M9�AL/M9�AVLD-A9�/A9�V
D-M9�/M9�V
(mm)
— — 5.5 5 6 6 6 6.5
D-F7�/J79D-F7�V/J79CD-F7�W/F7�WVD-J79WD-F79F/F7BALD-F7BAVL/F7NTL
— — — — — 5 5 5 D-P4DWL
— — 12 12 12 11 10 12
— — 13 13 13 14 14 16
D-A7�/A80D-A7H/A80HD-A73C/A80CD-A79W
D-F7�/J79D-F7�VD-J79CD-F7�W/J79WD-F7�WVD-F7BAL/F7BAVLD-F79F/F7NTLD-A7�/A80D-A73C/A80CD-A7�H/A80HD-A79WD-P4DWL
MK MK2
Auto Switch Proper Mounting Position (Detection at Stroke End) and its Mounting Height
Applicable Cylinders: Series MK, MK2
Auto Switch Proper Mounting PositionApplicable Cylinders: Series MK
Note) When setting an auto switch, confirm the operation and adjust its mounting position.
D-A73D-A80
A26
26.5
31.5
22.5
27
27.5
B 3.5
4
5
7.5
10.5
13.5
A30
30.5
35.5
26.5
31
31.5
B 7.5
8
9
11.5
14.5
17.5
D-A72/A7�HD-A80H/A73CD-A80C/F7�/F79FD-J79/F7�V/J79CD-F7BA�/F7�WD-J79W/F7�WV
D-A79WD-A9�D-A9�V
D-M9�D-M9�VD-M9�WVD-M9�WD-M9�ALD-M9�AVL
D-P4DWL
Auto switchmodel
20
25
32
40
50
63
A—
—
—
19.5
24
24.5
B—
—
—
4.5
7.5
10.5
A26
26.5
30
21
25.5
26
B 3.5
4
3.5
6
9
12
A29
29.5
33
24
28.5
29
A34
34.5
38
29
33.5
34
B 6.5
7
6.5
9
12
15
B11.5
12
11.5
14
17
20
A28.5
29
32.5
23.5
28
28.5
B6
6.5
6
8.5
11.5
14.5
Bore size
D-F7NTL
Auto Switch Proper Mounting PositionApplicable Cylinders: Series MK2
Note) When setting an auto switch, confirm the operation and adjust its mounting position.
D-A73D-A80
A30
31
36
27
31
31.5
B8
10
13
16
19.5
22.5
D-A79WD-F7NTLD-A9�D-A9�V
D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVL
D-P4DWL
Auto switchmodel
20
25
32
40
50
63
A—
—
—
20
24
24.5
B—
—
—
9
12.5
15.5
A26
27
30.5
21.5
25.5
26
B4
6
7.5
10.5
14
17
A29
30
33.5
24.5
28.5
29
A34
34.5
38
29
33.5
34
B7
9
10.5
13.5
17
20
B12
14
15.5
18.5
22
25
A28.5
29.5
33
24
28
28.5
B 6.5
8.5
10
13
16.5
19.5
Bore size
D-A72/A7�HD-A80H/A73CD-A80C/F7�/F79FD-J79/F7�V/J79CD-F7BA�/F7�WD-J79W/F7�WV
A26
27
32
23
27
27.5
B4
6
9
12
15.5
18.5
1251
Rotary Clamp Cylinder Series MK/MK2
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1251
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
[Mounting screws set made of stainless steel]The set of stainless steel mounting screws (with nuts) described below is available and can be used depending on the operating environment. (Please order the auto switch spacer BQ-2, since it is not included.)The “D-F7BAL/F7BAVL” switch is set on the cylinder with the stainless steel screws above when shipped.When only a switch is shipped independently, “BBA2” screw set is attached.
Bore size (mm)Auto switch model
20 25 32 40 50 63D-F7�/J79D-F7�VD-J79CD-F7�W/J79WD-F7�WVD-F7BAL/F7BAVLD-F79F/F7NTLD-A7�/A80D-A73C/A80CD-A7�H/A80HD-A79WD-P4DWL
BQ-1
— BQP1-050
BQ-2
Note 1) For ø32 to ø50 of each cylinder series, when mounting compact auto switches on one of the three sides other than the port side (above A, B, C side) in the figure above, a separate auto switch mounting bracket is necessary as shown in the table above, so please order one separately from the cylinder.(The same is true when mounting compact auto switches with the auto switch mounting rail, not using the compact auto switch mounting groove, for diameters ø63 to ø100.)Example MKA32-10R-M9BW ····· 1 unit BQ-2 ····· 2 pcs. BQ2-012 ····· 2 pcs.
Note 2) When the cylinder is shipped, an auto switch mounting bracket and auto switch are included in the shipment.
Set screw (not used)
Set screw (not used)
D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVLD-A9�D-A9�V
Auto switchmounting
surface
Auto switchmodel
Bore size (mm)
Auto switch mounting surface
Port side
qBQ-2wBQ2-012Two types of auto switch mounting bracket are used as a set.
No auto switch mountingbracket necessary.
No auto switch mountingbracket necessary.
No autoswitchmountingbracketnecessary.
A, B, C side
qBQ-1wBQ2-012Two types of auto switch mounting bracket are used as a set.
Only on auto switch mounting rail side
Auto switch mounting surface
A, B, C side
Auto switch mounting surface
Port, A, B, C side
Auto switch mounting surface
ø12, ø16 ø20, ø25 ø32, ø40, ø50 ø63Port side
B
C A
q
w
q
w
C
B
A
Port side
A
B
C
Port side
Note 4) When mounting D-M9�A(V)L anywhere other than the port side of ø32, ø40, ø50, please order auto switch mounting brackets BQ2-012S, BQ-2, and the stainless steel screw set BBA2 separately.
Auto Switch Mounting Bracket/Part No.
Note 3) When the cylinder is shipped, an auto switch mounting bracket and auto switch are included in the shipment. However, ø40 to ø63 with the D-P4DWL are assembled at the time of shipment.
Auto Switch Mounting Bracket Mass
Mass (g)
1.5
1.5
5
16
Mounting bracket part no.
BQ-1
BQ-2
BQ2-012
BQP1-050
Auto switch mounting screw
Auto switch mounting nut (Square nut)
Auto switch mounting nut (Convex type)
M3 x 0.5 x 8 l
M3 x 0.5 x 10 l
M3 x 0.5
M3 x 0.5
1
1
1
1
BQ-1
BQ-2
BQ-1
BQ-2
D-A7D-A8D-F7D-J7
Note 5) When using BQ-1, BBA2 may be used by itself.When using BQ-2, BQ-2 and BBA2 should be used together as a set, and used in combination with the auto switch spacer (black resin material) and stainless steel screws.
Detailed Contents of Stainless Steel Mounting Screw Set
Partno.
BBA2
Applicable autoswitch mountingbracket part no.
Applicableauto switch
Content
Description Size Qty.
1252
Series MK/MK2
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1252
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∗ With pre-wired connector is available for solid state auto switches, too. For details, refer to pages 1784 and 1785.∗ Normally closed (NC = b contact), solid state auto switch (D-F9G/F9H type) are also available. For details, refer to page 1746.
Auto switch type Model FeaturesElectrical entry
D-F7NV, F7PV, F7BV
D-F7NWV, F7BWV
D-F7BAVL
D-F79, F7P, J79
D-F79W, F7PW, J79W
D-F7BAL
D-F7NTL
D-P5DWL
D-A73
D-A80
D-A73H, A76H
D-A80H
—
Diagnostic indication (2-color indication)
Water resistant
—
Diagnostic indication (2-color indication)
Water resistant (2-color indication)
With timer
Magnetic field resistant
—
Without indicator light
—
Without indicator light
Applicable bore size
ø20 to ø63
ø40 to ø63
ø20 to ø63
Grommet (Perpendicular)
Grommet (In-line)
Grommet (Perpendicular)
Grommet (In-line)
Reed
Solid state
Other than the models listed in “How to Order”, the following auto switches are applicable.For detailed specifications, refer to pages 1719 to 1827.
1253
Rotary Clamp Cylinder Series MK/MK2
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1253
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Rotary Clamp Cylinder: Double Guide Type
ø20, ø25, ø32, ø40, ø50, ø63Series MK2T
∗ Since there are other applicable auto switches than listed, refer to page 1260 for details.∗ For details about auto switches with pre-wired connector, refer to pages 1784 and 1785.∗ When D-M9�(V)/M9�W(V)/M9�A(V)/A9�(V) types with ø32 to ø50 are mounted on a side other than the port side, order auto switch mounting brackets separately. Refer to
page 1261 for details.∗ Auto switches are shipped together (not assembled).
Applicable Auto Switches/Refer to pages 1719 to 1827 for further information on auto switches.
∗ Solid state auto switches marked with “�” are produced upon receipt of order.∗∗ For D-P4DW, ø40 to ø63 are available.∗∗ Only D-P4DW type is assembled at the time of shipment.
∗ Lead wire length symbols: 0.5 m ·········· Nil (Example) M9NW1 m ·········· M (Example) M9NWM3 m ·········· L (Example) M9NWL5 m ·········· Z (Example) M9NWZ
None ·········· N (Example) J79CN
How to Order
MK2T 10Rotary clamp cylinderDouble guide type Number of auto switches
R20B
NilS
2 pcs.1 pc.
N
Auto switch type
∗ For applicable auto switch models, refer to the below table.
∗ Arms are included when shipped, (but not assembled).
∗ Mounting bracket is included, (but not assembled). Nil Without auto switch (Built-in magnet)
Body optionNilN
Standard (Female thread)With arm
Rotary direction(Unclamp → Clamp)
Bore size202532
20 mm25 mm32 mm
405063
40 mm50 mm63 mm
Clamp strokeClamp stroke
10 mm20 mm50 mm
Applicable bore sizeø20 to ø40ø20 to ø63ø50 to ø63
Symbol102050
Mounting bracketThrough-hole/Both ends tapped common (Standard)Head end flange
BG
M9BW
M threadRc
NPTG
ø20, ø25
ø32 to ø63
Cylinder port
Nil
TNTF
Made to Order(Refer to page 1255.)
ClockwiseCounterclockwise
RL
Type Special functionElectrical
entryWiring
(Output)
Load voltage
DC AC
Lead wire length (m)0.5(Nil)
3(L)
5(Z)
None(N)
Applicableload
Pre-wiredconnector
1(M)
Auto switch model
Perpendicular In-lineø32 to ø63ø20, ø25ø32 to ø63ø20, ø25
NoYesNoYes
YesGrommet
Connector
Grommet
—
200 V100 V
100 V or less—
24 V or less—
3-wire(NPN equivalent)
2-wire24 V
——
Relay,PLC
5 V
—12 V
5 V, 12 V12 V
5 V, 12 V—
�
������
�
������
—
———
��—
—
———
��—
—
——————
IC circuit
—
IC circuit—
IC circuit—
—
——————Diagnostic indication
(2-color indication)
A96V
A93VA90V
A96
A93A90———
—
———
A72
A73CA80CA79W
A72H
5 V,12 V
12 V
5 V,12 V12 V5 V,12 V12 V
5 V, 12 V—
�����������—
������������
������������
———
�————————
���—
��������
IC circuit
—
IC circuit
—
IC circuit
—IC circuit
—
————
������——
Diagnostic indication(2-color indication)
Water resistant(2-color indication)
Diagnostic output(2-color indication)
Magnetic field resistant(2-color indication)
M9NVM9PVM9BV
M9NWVM9PWVM9BWVM9NAVM9PAVM9BAV
——
M9NM9PM9B
—M9NWM9PWM9BWM9NAM9PAM9BA
J79C
F79FP4DW∗∗
——
—
Yes
Connector
Grommet
Grommet
3-wire (NPN)3-wire (PNP)
2-wire
3-wire (NPN)3-wire (PNP)
2-wire3-wire (NPN)3-wire (PNP)
2-wire4-wire
2-wire (No polarity)
24 V —Relay,PLC
—
Indic
ator
light
Ree
d s
wit
chS
olid
sta
te s
wit
ch
1254
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1254
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Rotary Clamp Cylinder: Double Guide Type Series MK2T
During unclamping(Extension end)85° to 95°(90°±5°)L type
During unclamping(Extension end)
85° to 95°(90°±5°)R type
Clamp part
During clamping (Retraction end)
Non-rotating accuracy±0.5° to 1.0°
Bore size (mm)202532405063
Accessories
Hexagon sockethead cap screw
Mounting Bracket/Flange
Bore size (mm)202532405063
CQS-F020CQS-F025MK2T-F032MK2T-F040MK2T-F050MK2T-F063
MK-A020
MK-A032
MK-A050MK2T-A063
Accessories
Clamp bolt,Hexagon sockethead cap screw,Hexagon nut,Spring washer
Option/Arm
Action
Rotation angle Note 1)
Rotary direction Note 2)
Rotary stroke (mm)
Clamp stroke (mm)
Theoretical clamp force (N) Note 3)
Fluid
Proof pressure
Operating pressure range
Ambient and fluid temperature
Lubrication
Piping port size
Mounting
Cushion
Stroke length tolerance
Piston speed
Non-rotating accuracy (Clamp part)
Bore size (mm)
Double acting
90° ±5°Clockwise, Counterclockwise
Air
1.5 MPa
0.1 to 1 MPa
Without auto switch: –10 to 70°C (No freezing)
With auto switch: –10 to 60°C (No freezing)
Non-lube
Through-hole/Both ends tapped common, Head end flange
Rubber bumper
50 to 200 mm/s
20 25 32 40 50 63
19 3329
20, 5010, 20
100 185 300 525 825 1300
±1.0° ±0.5°
M5 x 0.8
+1.00
Rc1/8, NPT1/8, G1/8 Rc1/4, NPT1/4, G1/4
Note 1) Refer to “Rotary Angle” figure.Note 2) Direction of rotation viewed from the rod end when the piston rod is retracting.Note 3) At 0.5 MPa.
Specifications
Bore size(mm)
20
25
32
40
50
63
Rod size(mm)
Operatingdirection
12
12
16
16
20
25
R
H
R
H
R
H
R
H
R
H
R
H
Piston area(cm2)
2
3
3.7
4.9
6
8
10.5
12.5
16.5
19.6
26
31.2
0.3
60.8
90.2
112
149
182
243
319
380
502
596
780
948
0.5
100
149
185
245
300
400
525
625
825
980
1300
1560
0.7
139
208
258
341
418
557
731
870
1149
1365
1820
2172
1.0
200
298
370
490
600
800
1050
1250
1648
1961
2600
3121
Operating pressure (MPa)
Unit: N
Theoretical Output
Clamp stroke(mm) 20
367
433
—
25448
520
—
32806
914
—
401008
1127
—
50—
2049
2672
63—
2609
3354
102050
Bore size (mm)
Unit: g
Mass/Through-hole Mounting
20100
133
25100
153
32200
166
40 200
198
50350
345
63600
531
Bore size (mm)
With arm
Head end flange (including mounting bolt)
Unit: g
Additional Mass
X1859 With head end pin holeSymbol Description
Made to Order(For details, refer to page 2021.)
Rotary Angle
Note) Theoretical output (N) = Pressure (MPa) x Piston area (cm2) x 100 Operating directionR: Rod end (Clamp)H: Head end (Unclamp)
Calculation: (Example) MK2TG20-10RN• Standard calculation: MK2TB20-10R• Extra mass calculation: Head end flange
With arm
367 g133 g100 g600 g
Part no.
Part no.
1255
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
P1233-P1316-E.qxd 11/17/08 3:32 PM Page 1255
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
No.123
4
5
6
7
8
9101112
DescriptionRod coverCylinder tubePiston
Bushing
Guide shaft
Guide roller
Retaining ring
Piston rod
BumperSeal retainerMagnetKey
MaterialStructural steelAluminum alloyAluminum alloy
Oil-impregnated sintered alloyBronze castedStainless steelStructural steelStructural steel
Steel for special applications
Stainless steelStructural steel
UrethaneAluminum alloy
—Structural steel
Note
ø20, 25ø32 to 63ø20, 25
ø32 to 63
ø20, 25ø32 to 63ø20, 25
ø32 to 63
Component PartsNo.13141516171819202122232425
26
DescriptionArmClamp boltHexagon nutHexagon socket head cap screwSpring washerFlangeGasketCoil scraperPiston sealRod sealWear ringBottom plateRetaining ringHexagon socket head cap screw (with SW)WasherHexagon socket head cap screw
MaterialStructural steelStructural steelStructural steelStructural steel
Steel wireStructural steel
NBRBronzeNBRNBRResin
Aluminum alloySteel for special applications
Note
Structural steel
Stainless steelStructural steel
ø25, ø32 only
Component Parts
Replacement Parts: Seal Kit20
MK2T20-PS25
MK2T25-PS32
MK2T32-PS40
MK2T40-PS50
MK2T50-PS63
MK2T63-PSBore size (mm)
Kit no.Content
∗ Seal kit includes !9, @0, @1, @2. Order the seal kit, based on each bore size.
Set of nos. above !99 @0 @1 @2
MK2T�20 to 63
In case of clamp stroke 50 mm
Head end flange (G)With arm (N)
!8
!6
@4!9 @5
!4
!5
!3
!7
!6
oe@3@1!1otyuwqr!9@2@5
@6
!0!2@0i
Construction
1256
Series MK2T
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Arm
Wrench
Mounting bolt
Flatwasher
Hexagonwrenchkey
Operating pressure (MPa)0.1 0.2 0.4 0.6 1
0.45 0.55 0.8
2
4
6
8
10
20MK2T�50/63
MK2T�32/40
MK2T�20/25
Operatingrange
Arm
leng
th l
(cm
)
Precautions for Designing and Mounting Arms
Mounting: Mounting bolt for through-hole type is available.Ordering: Add the word “MK2TB” to the mounting bolt size.Example) M5 x 115 L (MK2TB) 4 pcs.
Mounting Bolt for MK2TB
When arms are to be made separately, their length and weight should be within the following range.
1. Allowable bending momentUse the arm length and operating pressure within Graph (1) for allowable bending mo-ment loaded piston rod.
2. Moment of inertiaWhen the arm is long and heavy, damage of internal parts may be caused due to iner-tia. Use the inertia moment and cylinder speed within Graph (2) based on arm require-ments.
Graph (1)
When arm length is 8 cm, pressure should be less thanMK2T�20/25: 0.45 MPaMK2T�32/40: 0.55 MPaMK2T�50/63: 0.8 MPa.
When arm’s moment of inertia is 1 x 10–2 kg·m2, cylinder speed should be less thanMK2T�32/40: 85 mm/sMK2T�50/63: 140 mm/s.For calculating moment of inertia, refer to pages 1234, 1235 and 1264.Note) Maximum piston speed is equivalent to
approximately 1.6x the average piston speed. (Rough indication)
• To attach and detach the arm to and from the piston rod, fix the arm with a wrench or vise and then tighten the bolt.(If an excessive force is applied in the rotary direction, it may bring about the damage to the internal mechanism.)Refer to the following table for the tightening torque for mounting.
Cylinder model C11 11 8.5 8.511.511.5 7.5 7.513.510 13 14
D115135115135145165145165185245185250
Mounting bolt sizeM5 x 115 LM5 x 135 LM5 x 115 LM5 x 135 LM5 x 145 LM5 x 165 LM5 x 145 LM5 x 165 LM6 x 185 LM6 x 245 LM8 x 185 LM8 x 250 L
MK2TB20-10MK2TB20-20MK2TB25-10MK2TB25-20MK2TB32-10MK2TB32-20MK2TB40-10MK2TB40-20MK2TB50-20MK2TB50-50MK2TB63-20MK2TB63-50
l
Bore size (mm)20, 2532, 40
5063
Proper tightening torque4 to 6
8 to 1014 to 16
106 to 127
(N·m)
Graph (2)
Note) Maximum piston speed (mm/s)
10–4
10–3
10–2
10–1
Mom
ent o
f ine
rtia
(kg
·m2
)
50 100 20014085
MK2T�50/63
MK2T�32/40
MK2T�20/25
Operatingrange
Precautions
Clamp Arm Mounting1. Use a clamp arm that is available as an option.
To fabricate a clamp arm, make sure that the allowable bending moment and the inertial moment will be within the specified range.If a clamp arm that exceeds the specified value is installed, the internal mechanism in the cylinder could become damaged.
Caution
Ensuring Safety1. If one side of the piston is pressurized by sup-
plying air with the clamp arm attached, the piston will move vertically while the clamp arm rotates. This operation could be hazardous to personnel, as their hands or feet could get caught by the clamp arm, or could lead to equipment damage. Therefore, it is important to secure as a danger zone a cylindrical area with the length of the clamp arm as its radius, and the stroke plus 20 mm as its height.
Installation and Adjustment/Clamp Arm Removal and Reinstallation
1. During the removal or reinstallation of the clamp arm, make sure to use a wrench or a vise to secure the clamp arm before remov-ing or tightening the bolt.This is to prevent the bolt tightening torque from being applied to the piston rod, which could damage the cylinder’s internal mechanism.
Be sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actua-tor and Auto Switch Precautions.
Note) Be sure to use a flat washer to mount cylinders via through-holes.
1257
Rotary Clamp Cylinder: Double Guide Type Series MK2T
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
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Dimensions: ø20, ø25
Head End FlangeModel
MK2TG20MK2TG25
A60
64
B39
42
C48
52
(mm)
Through-hole/Both Ends Tapped Common (Standard) (mm)
Clamp stroke 20 mmClamp stroke 10 mmBore size
36
40
47
52
25.5
28
116.5
119
110.5
113
59
59
A øB CQ R S
136.5
139
130.5
133
69
69
Q R S2025
17.5
14
51 357
1611 to 22
M6 x 1.0
ø12
4.5
QR
5.5S
1717
2 x M5 x 0.8
2 x 4 x M6 x 1.0
AC
10 –0.07–0.15
10–0
.07
–0.1
5
øB
CA
M8 x 1.25Thread length 11 4 x ø5.4 through
2 x 4 x ø9 counterbore depth 7
C
8 BA
2 x ø6.6
1258
Series MK2T
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BE
DC
A
4 x øF
F
EA
B D10
C G
K
QR
ST
NN
øU
2 x 4 x M thread 2 x V
A C D
øB
O
PACD
4 x øG through
2 x 4 x øH counterbore depth
I thread length J
Dimensions: ø32, ø40, ø50, ø63
With Arm (mm)
GM8 x 1.25
M8 x 1.25
M10 x 1.5
M10 x 1.5
A18
18
22
32
B67
67
88
91
C20
20
22
32
D45
45
65
65
E21.5
21
29.5
34.5
F15 to 25
15 to 25
20 to 40
20 to 40
Head End Flange (mm)
Model
MK2TG32MK2TG40MK2TG50MK2TG63
A8
8
9
9
øF5.5
5.5
6.6
9
B 65
72
89
108
C48
54
67
80
D E34
40
50
60
56
62
76
92
Model
MK2T�32�-��NMK2T�40�-��NMK2T�50�-��NMK2T�63�-��N
Through-hole/Both Ends Tapped Common (Standard) (mm)
45
52
64
77
60
69
86
103
34
40
50
60
5.5
5.5
6.6
9
9 depth 7
9 depth 7
11 depth 8
14 depth 10.5
M10 x 1.5
M10 x 1.5
M12 x 1.75
M16 x 2
M6 x 1.0
M6 x 1.0
M8 x 1.25
M10 x 1.5
12
12
15
21
N
14
14
19
19
17
17
22
28.5
4.5
5
7
7
16
16
20
25
Rc 1/8
Rc 1/8
Rc 1/4
Rc 1/4
NPT 1/8
NPT 1/8
NPT 1/4
NPT 1/4
G 1/8
G 1/8
G 1/4
G 1/4
Nil TN TFV
A øB C D G H I J
6
6
7
8
K M
14
14
17
22 –0.07–0.15
–0.07–0.15
–0.07–0.15
–0.07–0.1532
405063
Bore size O P øU
148
151.5
—
—
140
144
—
—
74
75
—
—
7.5
8
—
—
Q R S T168
171.5
191
192
160
164
179
182
84
85
91.5
93
7.5
8
12.5
10.5
Q R S T—
—
254.5
256
—
—
242.5
246
—
—
121.5
123
—
—
14
15
Q R S T32405063
Bore sizeClamp stroke 50 mmClamp stroke 20 mmClamp stroke 10 mm
1259
Rotary Clamp Cylinder: Double Guide Type Series MK2T
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
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Operating Range (Dimensions) (mm)
Operating Range
D-A7�/A80D-A7H/A80HD-A73C/A80C
Auto switch modelBore size
20
5.5 5.5 6.5 5.5 6.5 6.5
3 3.5 4.5 4.5 5 5
— — 6 6 6 6.5
25 32 40 50 63
D-F7�/J79D-F7�V/F79F/J79CD-F7�W/F7�WVD-F79F/F7BAL/F7BAVL/F7NTL
D-M9�W/M9�WVD-M9�AL/M9�AVL
D-M9�/M9�V
—
——
—
——
9.5
6 —
11.5
7 5
11
7 5
13.5
9.5 5
D-A79WD-P4DWL
9 9.5 9 9.5 9.5 11 D-A9�/A9�V
∗ Since this is a guideline including hysteresis, not meant to be guaranteed. (Assuming approximately ±30% dispersion.) There may be the case it will vary substantially depending on an ambient en-vironment.
∗ Figures for models D-M9�(V), M9�W(V), M9�A(V)L, and A9�(V) with ø32 or more indicate the operating range when using the existing auto switch-mounting groove, without using auto switch mounting bracket (BQ2-012).
Other than the models listed in “How to Order”, the following auto switches are applicable.For detailed specifications, refer to pages 1719 to 1827.
Auto switch type Model FeaturesElectrical entryD-F7NV, F7PV, F7BVD-F7NWV, F7BWVD-F7BAVLD-F79, F7P, J79D-F79W, F7PW, J79WD-F7BALD-F7NTLD-P5DWLD-A73D-A80D-A73H, A76HD-A80H
—Diagnostic indication (2-color indication)
Water resistant—
Diagnostic indication (2-color indication)Water resistant (2-color indication)
With timerMagnetic field resistant
—Without indicator light
—Without indicator light
Applicable bore size
ø20 to ø63
ø40 to ø63
ø20 to ø63
Grommet (Perpendicular)
Grommet (In-line)
Grommet (Perpendicular)
Grommet (In-line)Reed
Solid state
∗ With pre-wired connector is available for solid state auto switches, too. For details, refer to pages 1784 and 1785.∗ Normally closed (NC = b contact), solid state auto switch (D-F9G/F9H type) are also available. For details, refer to page 1746.
ø20 to ø63 ø32 to ø63B
A
Auto switch (Rail mounting)B
A
Auto switch (Direct mounting)D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVLD-A9�D-A9�V
Mounting Rail mounting Direct mounting
Model
MK2T20MK2T25MK2T32MK2T40MK2T50-20stMK2T50-50stMK2T63-20stMK2T63-50st
D-A7D-A8
A——
73 (73.5)74 (74.5)89.5 (90)
119.5 (120)91.5 (92)
121.5 (122)
B——
10.5 (11)13 (13.5)18.5 (19)22 (22.5)19.5 (20)23.5 (24)
A——
73.5 74.590
120 92
122
B——
11 13.519 22.520 24
A——
70.5 71.5
87 117
89 119
B——8
10.516 19.517 21
A———70
85.5115.5 87.5117.5
B———9
14.518 15.519.5
A 60.5
61 76 77
92.5122.5 94.5124.5
B9
11 13.516 21.525 22.526.5
A 56.5
57 72 73
88.5118.5 90.5120.5
B5 7
9.512 17.521 18.522.5
A63
63.5 78.5 79.595
125 97
127
B11.513.516 18.524 27.525 29
D-A7�H/A80HD-A73C/A80CD-F7�/F79F/J79D-F7�V/J79CD-F7BA�/F7�WD-J79W/F7�WV
D-A79W D-P4DWL D-A9�D-A9�V
D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVL
D-F7NTL
∗ ( ): D-A72Note) When setting an auto switch, confirm the operation and adjust its mounting position.
Auto Switch Proper Mounting Position (Detection at Stroke End)
D-F7�/J79D-F7�VD-J79CD-F7�W/J79WD-F7�WVD-F7BAL/F7BAVLD-F79F/F7NTLD-A7�/A80D-A73C/A80CD-A7�H/A80HD-A79WD-P4DWL
1260
Series MK2T
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Auto Switch Mounting Bracket Mass
Mass (g)
1.5
1.5
5
16
Mounting bracket part no.
BQ-1
BQ-2
BQ2-012
BQP1-050
Bore size (mm)Auto switch model
32 40 50 63D-F7�/J79D-F7�VD-J79CD-F7�W/J79WD-F7�WVD-F7BAL/F7BAVLD-F79F/F7NTLD-A7�/A80D-A73C/A80CD-A7�H/A80HD-A79WD-P4DWL — BQP1-050
BQ-2
Note 1) For ø32 to ø50 of each cylinder series, when mounting compact auto switches on one of the three sides other than the port side (above A, B, C side) in the figure above, a separate auto switch mounting bracket is necessary as shown in the table above, so please order one separately from the cylinder.(The same is true when mounting compact auto switches with the auto switch mounting rail, not using the compact auto switch mounting groove, for diameters ø63.)Example MK2TB32-10R-M9BW ····· 1 unit BQ-2 ····· 2 pcs. BQ2-012 ····· 2 pcs.
Note 2) When the cylinder is shipped, an auto switch mounting bracket and auto switch are included in the shipment.
D-M9�D-M9�VD-M9�WD-M9�WVD-M9�ALD-M9�AVLD-A9�D-A9�V
Auto switchmounting
surface
Auto switchmodel
Bore size (mm)
Auto switch mounting surface
Port side
qBQ-2wBQ2-012Two types of auto switch mounting bracket are used as a set.
No auto switch mountingbracket necessary.
No auto switch mountingbracket necessary.
No auto switch mountingbracket necessary.
A, B, C sides
Auto switch mounting surface
Port, A, B, C sides
Auto switch mounting surface
Port, A, B, C sides
ø20, ø25 ø32, ø40, ø50 ø63
A
B
C
Port side
C
B
A
Port side
Set screw (not used)
q
w
Port side
B
C A
Auto Switch Mounting Bracket/Part No.
Note 3) When the cylinder is shipped, an auto switch mounting bracket and auto switch are included in the shipment. However, ø40 to ø63 with the D-P4DWL are assembled at the time of shipment.
Note 4) When mounting D-M9�A(V)L anywhere other than the port side of ø32, ø40, ø50, please order auto switch mounting brackets BQ2-012S, BQ-2, and the stainless steel screw set BBA2 separately.
[Mounting screw set made of stainless steel]The set of stainless steel mounting screws (with nuts) described below is available and can be used depending on the operating environment. (Please order the auto switch spacer BQ-2, since it is not included.)The “D-F7BAL/F7BAVL” switch is set on the cylinder with the stainless steel screws above when shipped.When only a switch is shipped independently, “BBA2” screw set is attached.
Auto switch mounting screw
Auto switch mounting nut (Square nut)
Auto switch mounting nut (Convex type)
M3 x 0.5 x 8 l
M3 x 0.5 x 10 l
M3 x 0.5
M3 x 0.5
1
1
1
1
BQ-1
BQ-2
BQ-1
BQ-2
D-A7D-A8D-F7D-J7
Note 5) When using BQ-1, BBA2 may be used by itself.When using BQ-2, BQ-2 and BBA2 should be used together as a set, and used in combination with the auto switch spacer (black resin material) and stainless steel screws.
Detailed Contents of Stainless Steel Mounting Screw SetPartno.
BBA2
Applicable auto switch mounting bracket part no.
Applicable auto switch
Content
Description Size No.
1261
Rotary Clamp Cylinder: Double Guide Type Series MK2T
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
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Series MK/MK2/MK2TSpecific Product Precautions 1Be sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actuator and Auto Switch Precautions.
Fig. (1)
Hexagon wrenchWrench
Arm
Speed Adjustment
Warning1. Make sure to connect a speed controller to
the cylinder and adjust it so that the cylinder speed will be within a range of 50 to 200 mm/s.If a clamp arm other than the available option is used, make sure to select an appropriate arm after calculating the inertial moment of the arm.To operate a speed controller, make sure that the valve is fully closed, and gradually open the valve to adjust the speed.
Fig. (2)
Operating Environment
Clamp Arm Removal and Reinstallation
Warning1. To remove and reinstall the arm on the piston
rod, instead of securing the cylinder body, use a wrench to secure the arm to loosen or to tighten the bolt (Fig. (1)).An excessive amount of rotational force will be applied to the piston rod if the bolt is tightened by securing the cylinder body, which could damage the internal parts.To fabricate an arm, make sure to machine a detect portion that corresponds to the parallel section at the rod end.
Warning1. Do not use the cylinder under following en-
vironments:1) An area in which fluids such as cutting oil splash on the pis-
ton rod.2) An area in which foreign matter such as particles, cutting
chips, dust, or spatter is present.3) An area in which the ambient temperature exceeds the oper-
ating range.4) An area exposed to direct sunlight.5) An environment that poses the risk of corrosion.
Mounting Arms for Width Across Flats (MK Only)
Warning1. When installing the arm for the parallel sec-
tion at the rod end, the strength of the piston rod might be insufficient depending on the direction in which the arm is installed. There-fore, make sure to install the arm in the direc-tion indicated in Figure A. (Fig. (2))
1262
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Series MK/MK2/MK2TSpecific Product Precautions 2Be sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actuator and Auto Switch Precautions.
Operating Environment
Warning1. A cylinder could malfunction or the non-rotating accuracy could be affected if a rotational force is
applied to the piston rod. Therefore, observe the particulars given below before operating the cy-linder.1) Make sure to mount the cylinder vertically (Fig. (3)). (MK, MK2 only)2) Do not absolutely perform any work (such as clamping or acting as a stopper, etc.) in the rotary direction (Fig. (4)).3) To clamp, make sure to do so within the clamp stroke (straight-line stroke) range (Fig. (5)).4) Make sure that the clamping surface of the workpiece is perpendicular to the cylinder's axial line (Fig. (6)).5) Do not operate the cylinder in such a way that an external force causes the workpiece to move while being clamped (Fig. (7)).6) Furthermore, do not operate the cylinder in an application in which a rotational force will be applied to the piston rod.
1) Do not operate the cylinder horizontally.
(MK, MK2 only)
2) Do not perform any work in the rotary direction.
3) Do not clamp during the rotary stroke.
4) Do not clamp on a slanted surface. 5) Make sure that the workpiece does not move during clamping.
Fig. (3)
Fig. (5)
Fig. (4)
Rotary stroke
Clamp stroke
Rotary stroke
Fig. (6) Fig. (7)
1263
MK
CK�1
CLK2
CKQCLKQ
Individual-X�
D-�
-X�
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Magnetic substance(Steel plate, etc.)
Magnetic substance(Steel plate, etc.)
Series MK/MK2/MK2TSpecific Product Precautions 3Be sure to read before handling.Refer to front matters 42 and 43 for Safety Instructions and pages 3 to 11 for Actuator and Auto Switch Precautions.
• When a magnetic substrate surrounds the cylinder as shown in the figure below (including when the magnetic substrate is only on one side of the cylinder), the movement of the auto switch may become unstable, so please contact SMC.
• If welding cables or welding gun electrodes are in the vicinity of the cylinder, the magnets in the cylinder could be affected by the exter-nal magnetic fields. (Contact SMC if the welding amperage exceeds 16000 A.) If the source of strong magnetism comes in contact with the cylinder or an auto switch, make sure to install the cylinder away from the source of the magnetism.If the cylinder is to be used in an environment in which spatter will come in direct contact with the lead wires, cover the lead wires with a protective tube. For the protective tube, use a tube I.D. ø7 or more, which excels in heat resistance and flexibility.Contact SMC if an inverter welder or a DC welder will be used.
Ι = m1· + m2·a12
3a22
3
Ι = m·a2
12
Ι = m·a2
12
Ι = m1· + m2· 4a12 + b2
124a22 + b2
12
Ι = m·a2 + b2
12
Ι = m1· + m2·a22 + Ka12
3
k = m2·2r2
5
Calculation of Moment of Inertia
Mounting With Magnetic Field Resistant Auto Switch D-P4DWL
1. Thin shaftPosition of rotational axis: Vertical to the bar and through the end
4. Thin rectangular plate (Rectangular parallelopiped)Position of rotational axis: Vertical to the plate and through the end
2. Thin shaftPosition of rotational axis: Perpendicular to the shaft through the center of gravity
5. Thin rectangular plate (Rectangular parallelopiped)Position of rotational axis: Through the center of gravity and vertical to the plate (Same as also thick rectangular plate)
3. Thin rectangular plate (Rectangular parallelopiped)Position of rotational axis: Parallel to side b through the center of gravity
6. Load at the end of lever arm
Ι: Moment of inertia (kg·m2) m: Load mass (kg)
a
1264
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