SHOVEL

EKG-20

3 - 16...24 - 40 t - 750 t

mMain dipper capacityDipper payload Working mass

Main drive control systemDrive system

Climatic version

TECHNICAL PARAMETERS

ELECTRIC DRIVE

Drive system :– –

–

–

high weighted power factor (0,95);low content of upper harmonics in power supply

network; electrical braking of units in case of 6kV power supply

network failure;energy efficiency;

–

–

frequency converter and induction motor.

TC2, working temperature: -40°С; +45°С.

Protection:–

–

–

– –

–

– –

protection from internal and external short circuits and overloads;

protection from overload (overheating) of IGBT transistors;

protection from open-phase operation and wrong phase sequencing;

protection from motor voltage overload; protection from power supply line voltage overload and

voltage drops; protection from frequency converter cooling system

ventilation failure; protection from insulation resistance drop;protection from drive self rotation.

Auxiliary drivesAux. equipment power supply voltage:– – – – – –

aux. drives – 380 V;lighting – 220 V;AC control circuits – 220 V;DC control circuits – 110 V;warning circuits – 24 V;clearance and emergency lighting – 12 V.

Working lightingCablesProtection

FRONTALEQUIPMENT

Frontal equipment design – rigid rack-type crowd mechanism with double-beam stick and sheave-less dipper suspension.

2

–– – –

LED lights and floodlightsself-extinguishing cables.from electric shocks.from resistance level drop.

.

DipperDesignMaterial

Connectionwith the stickDipper door brakes

––

––

–

cast front wall, door, yoke and teeth

are made of high-manganese steel. rear wall is welded of rolled plates.. 4-point hinged joints (with heavy-

duty bushings, pins, and axles). disc brakes mounted on the rear

wall.

decast and welded.

BoomBoom design

Crowd mechanismGearbox

CouplingConnection with the revolving frameBoom suspensionBoom point sheaveBrake

–

–

–

– –

–

–

–

all-welded box-section boom with heat-treated transverse and longitudinal diaphragm plates and forged parts. The frame of the boom is heat-treated. The boom has increased strength and torsion-proofness for digging rocky soil.

mounted in the middle of the boom.

two-stage gearbox with external rack-and-pinion gear.

with flexible elements, coupling diameter 50 mm. hinged joints in 2 points.

four guy ropes, rope diameter 70 mm.

double-groove cast sheaves with heat-treated working surface.

pneumatic normally-closed shoe brake.

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MECHANISMOF FRAME

Rest area

Bottom cabin

3

StickDesignGear rack

– –

double spaced heat-treated box beams.forged rack with open gearing.

Dipper door winchConstructionMotor power

– –

gearless winch.motor power.

Hoist winchDriveGearboxDrums Couplings

Brakes

– – –

–

–

two electric motorstwo-stage gearbox with spur gears. cantilever double-groove drums with heat-treated

grooves spline-mounted on the shaft. the couplings are combined with brake pulleys, coup-

lings with flexible elements, coupling diameter 50mm. pneumatic normally-closed shoe brakes.

Revolving frameDesign Boom support Connection of frame partsCounterweight box

–

–

–

–

heavy-duty heat treated three-piece torsion-resistant box frame.

force transmission through parallel longitudinal beams.

heavy-duty fasteners М24.

box-type housing filled with up to 85 t of 45-60 mm diameter balls.

Swing gearDriveDrive gearboxBrakes Swing circle

Swing speed

– – – –

–

vertical flanged electric motors.4 two-stage planetary gearboxes.pneumatic normally-closed shoe brakes. with external gear ring and roller circle

with 40 taper rollers.0 – 3 rpm.

Operator's cabinDesignTop cabin

Operator's seat

Control joysticksWindows

VentilationClimate controlAudio communicationInformation system

Video monitoring system

– –

–

– –

– – –

–

–

two level bracket-mounted cabin.with resilient suspension, working

and rest areas, and panoramic windshield.

anatomical weight-adjustable seat with vibration-isolating mount.

installed in operator's seat consoles.shatterproof glass, windscreen

wiper, and a sunscreen.superpressure system.automaticbuilt-in.

excavator units monitoring system that can store/display warning messages and excavator performance data on a screen.

five cameras provide the operator with a view on: dipper working area, entry ladder, inside the housing, cable drum, left side of the excavator.

SHOVEL EKG-20

–

–

table, documentation racks, microwave oven, and refrigerator.

cabinet with operating documentation, work bench and racks for small tools and spare parts.

CARRIAGE

LUBRICATIONSYSTEM

4

TECHNICAL PARAMETERS

CarriageDesign Propel driveGearboxes

BrakeTrackSupport rollersIdlersCarrier rollersDrive rollersTakeup devicesMovement speed

–

––

–––

––––

–

and side box frames.

one electric motor for each track. two-stage onboard gearbox and two-stage attached

gearbox with spur gearing. pneumatic normally-closed shoe brake. maintenance-free design, 48 1800mm-wide links. 6 on each frame.

1 on each frame 4 on each frame elevated roller with replaceable cams built-in hydraulic cylinders

0-1,1 km/h.

three-modular carriage with heat-treated central part

Cable drumDesign

CapacityQuantity of layersCable diameter

–

–––

attached with automatic reeving.

min. 350 m of cable 2 54-59 mm

Centralized lubrication system of EKG-20Type

Lubrication pumps

Lubricantcontainers

Tank of the carriagelubrication pump

–

––––

–

Automatic centralized lubrication system for bearings of the revolving frame units, frontal equipment, and carriage, and for open gearings and rolling surfaces of the frontal equipment and slewing mechanisms.

Barrel pump for lubricating rolling bearings Barrel pump for lubricating open gearings Pump for lubricating the carriage Standard 200l barrels with lubricant for rolling

bearings and open gearings. Empty barrels shall be replaced with full ones.

5 l tank of the carriage lubrication pump shall be filled with a lubricant gun through a filling nipple.

Pneumatic systemConfiguration

Air receiver capacityDrierCapacityPressureControl

–

–––––

screw compressor unit in noise-abating enclosure.

3 1,08 м , diaphragm type.

3 1,15 m /min 0,92 MPa electropneumatic valves.

Mechanical equipment protection system.Main drive control algorithms include the set of interlocks, providing:

––––––––

dipper lift limitation stick movement limitation bucket protection from dipper throw boom protection from impacts boom overhoist protection limitation of side loads when digging and handling oversized materials excavator tilt angle limitation hoist rope unwinding length limitation

Auxiliary equipment HoistAuxiliary winch

––

lifting capacity 500 kg. lifting capacity 2500 kg.

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OPERATING PARAMETERS

MASSES AND OVERALL DIMENSIONS750

0,245(2,5)

12,74

10

0,85

12,3

85

17,67

16

3,36

8,32

20

40

75

16,4

14,9

10,7

12

16-24

170

27

22,2

19,6

5

5

3Main dipper capacity, m3Dipper capacity range, m

Dipper payload, t

Dipper sheave force, t

Crowd force, max, t

Time of working cycle, s

Digging height, max, m

Digging radius, max, m

Clean-up radius, m

Dumping radius, max, m

Dumping height, max, m

[ C ]

[ C ]

[ C ]

[ C ]

[ C ]

[ C ]

[ C ]

[ C ]

[ C ]

[ D ]

[ Е ]

[ В ]

[ А ]

Working tilt angle, degrees

Gradeability, degrees

Working mass, t

Mass of ballast, t2Ground bearing pressure, MPa (kg/cm )

Height of boom point sheaves, m

Height of A-frame, m

Max. clearance radius over boom point sheaves, m

Max. clearance radius over revolving frame, m

Clearance under frame, m

Ground clearance, m

Operator's eye level, m

Overall width, m

[ G ]

[ G ]

[ G ]

[ G ]

[ K ]

[ H ]

[ I ]

[ J ]

[ M ]

[ N ]

[ L ]

SHOVEL EKG-20A

K

J

N

C

G

I H

B

E

D

M

L

SWING GEAR & BEARING ASSEMBLY Design

Swing gear diameter, mm

number of teeth / module

with conical rollers

160/32

5171

6

FRONT-END EQUIPMENT Crowd mechanism type

Stick make

Boom make

Boom sheave diameter, mm

rack

single beam

double beam

2280

ELECTRIC EQUIPMENT Electric drive type

Voltage, kV

Frequency, Hz

Main transformer power, kVA

6

1600

50

frequency converterand induction motor

GEARBOXES

Two-stage in-line

Two-stage in-line

Two-stage planetary

Qty, pcDesignGearbox

Propel

Crowd

Hoist

Swing

2

1

1

4

REVOLVING FRAME Length, m

Width, m

13,4

9,2

PROPEL MECHANISM Design

Overall length, m

Overall width, m

Track gauge, m

Track width, m

number of links

pitch of links, mm

Speed, km/h

11,2

7,29

48

1,1

9,31

1,8

500

two-crawler mounting withlarge diameter rollers

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ROPES AND GUY STRANDS

Hoist

Boom suspension

Dipper door opening

Auxiliary winch

GOST

GOST

Guy strand

GOST

Diameter, mmQty, pcTypeStructure

2

4

1

1

Length, m

57

15,5

70

13,5

91

15

22

250

Parameters of motorsin main drives of EKG-20

Hoist motor

Crowd motor

Swing motor

Propel motor

Dipper door opening motor

Cable reel motor

АДРЭ-С 600-8 УХЛ2

АДРВЭ-С 150-8 УХЛ2

Д 32 УХЛ1

АДРЭ-С 325-8 УХЛ1

АДРЭ 200-8 УХЛ1

Д 12 УХЛ2

Rotationalspeed, rpmPower, kWMotor typeDescription

600

325

150

200

12

2,5

Qty, pcs

560/840

750

780

500

500/1000

1180

2

1

4

2

1

1

7

SHOVEL EKG-20

WEIGHT AND DIMENSIONSOF MAIN ASSEMBLY UNITS

3DIPPER 20 m

Height – 5780

Width 4325

Length 3390

, mm

, mm –

, mm –

Weight, t – 35

STICK

Height – 1460

Width 3485

Length 11710

, mm

, mm –

, mm –

Weight, t – 24.7

BOOM

Width, mm – 1370

, mm –

, mm –

Weight, t – 65

Width with attachments 5680

Length 17000

RACK

Height – 8600

Width 3900

Length 6500

, mm

, mm –

, mm –

Weight, t – 14.6

TRACK MOVE

Height – 2300

Width 7510

Length 10920

, mm

, mm –

, mm –

Weight (assembled track frame), t– 72

TRACK

Track Height – 407

Track Width 710

Track Length 1800

, mm

, mm –

, mm –

Track weight, t – 0.78

Track chain weight, t – 40.34

8

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GEARBOX

Height – 2190

Width 1750

Length 1255

, mm

, mm –

, mm –

Weight, t – 4.99

EXCAVATOR CABIN

Width, mm – 1900

, mm –

, mm –

Weight, t – 5.3

Height 5005

Length 5300

CABLE DRUM

Height – 1920

Width 4540

, mm

, mm –

Weight, t – 4.9

DRUM WINCH WITH ROPE

Diameter – 1350

Width 770

Diameter of Rope 57

, mm

, mm –

, mm –

Weight (without rope), t – 2.38

CROWN GEAR

Outside diameter – 5171,2

Height 360

, mm

, mm –

Weight, t – 10.9

LOWER FRAME

Height, mm – 2054

Width 4576

Length 4380

, mm–

, mm –

Weight, t – 28.6

9

SHOVEL EKG-20

200

125 320

117

SUSPECTOR HOUSING

Height – 3421, mm

Weight, t – 0.66

CRANE BEAM

Length, mm – 6361

, mm –

Weight, t – 0.41

Height 1128

CIRCLE ROLLER

Height – 240

4200

, mm

Diameter, mm –

Weight, t – 9.4

SWINGING MECHANISM

Height – 4210, mm

Weight, t – 22.125

VENTILATION UNIT

Height – 2372

Width 7925

, mm

, mm –

Weight, t – 3.023

10

WEIGHT AND DIMENSIONSOF MAIN ASSEMBLY UNITS

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MIDDLE SECTIONOF THE TURNTABLE

Width, mm – 4500

Height, mm –

, mm –

Weight, t – 18.2

1270

Length 4780

COMPRESSOR STATION

Height – 1996

Width 790

, mm

, mm –

Length, mm – 1700

Weight, t – 1.076

CENTRAL PIVOT

Diameter, mm

, mm –

Weight, t – 4.81

– 580

Height 2733

THE FRONT SECTIONOF THE TURNTABLE

Height – 1980

Width 4500

Length 7200

, mm

, mm –

, mm –

Weight, t – 39

GEAR WINCH

Height – 2740

Width 2400

Length 4249

, mm

, mm –

, mm –

Weight, t – 37.7

COUNTERWEIGHT HOUSING

Height – 4315

Width 9200

, mm

, mm –

Weight, t – 17.7

11

SHOVEL EKG-20

4

16

8

12

0

ДМ8008-ВУф

kgf/cm

1.5

2

Uralmashplant is one of the leading Russian machine-building plants. For more than 80 years Uralmashplant has been a key provider of basic machinery for mining, chemical, metallurgical, construction, oil-and-gas, and power engineering industries, since fundamental national industries have originated here, at the Ural heavy machine-building plant.

The trademark "UZTM" is well-known all over the world. The plant supplies its products to CIS countries, Western and Eastern Europe, Middle East, South and Southeastern Asia, Africa, North and Latin America. Uralmashplant has its own highly efficient design center. The plant comprises welding, machining and assembly, heat-treatment, and toolmaking facilities.

Uralmashplant offers complex solutions from technology development and engineering to supply, installation, and maintenance services. Uralmashplant offers to its customers highly-effective, reliable, low maintenance, energy-saving, and highly automated equipment designed with a glance to actual ecological requirements.

CONTACTS

620012, Pervoi Pyatiletki Sq., Ekaterinburg, RussiaE-mail: Fax: Information Service: Sales DirectionProcurement and Logistics DirectionPress CenterMuseum of Uralmash History

mail@uralmash.ru+7 (343) 336-60-40

+7 (343) 336-69-79 +7 (343) 327-59-31+7 (343) 336-69-01+7 (343) 336-60-54+7 (343) 327-10-63

ABOUT US

Mining equipment:– – – – –

crawler-type excavators,walking and crawler-mounted draglines,jaw and cone crushers for all reduction stages,ball and rod mills, autogenous and semi-autogenous mills,crushing and screening plants for producing cubiform particles.

MAIN PRODUCTS

Metallurgical equipment: Lifting and handling equipment:– – – – – –

sintering equipment, heavy metallurgical cranes,indurating equipment, lifting equipment for nuclear power plants,rolling mill rolls general-purpose special and EOT cranes.