IS 9881 (2007): Container spreaders-Specification
Transcript of IS 9881 (2007): Container spreaders-Specification
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IS 9881 (2007): Container spreaders-Specification [TED 12:Freight Containers and Pallets]
IS 9881:2007
Indian Standard
CONTAINER SPREADERS — SPECIFICATION
(’First Revision,)
ICS 53.020.30; 55.180.10
C)B1S2007
BUREAU OF INDIAN STANDARDSMANAIt BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
Price Group 2
b
June 2007
———— ._–—. ..—._
Freight Containers and Pallets Sectional Committee, TED 12
FOREWORD
This Indian Standard (First Revision) was adopted by the Bureau of lndian Standards, after the draft finalized by theFreight Containers and Pallets Sectional Committee had been approved by the Transport Engineering Division Council.
This standard was originally published in 1981. This revision has been undertaken to align with the current practicesand to include 12 m (40 feet) spreaders.
When atypical 4-leg sling is used for lifting a freight container, compressive stresses are developed along the horizontalroof line of container. Containers are not constructed to take this stress at the roof plane. Therefore, spreaders are usedfor handling of freight containers which take these compressive stresses and prevent the container from any damage.
Applicable statutory requirements pertaining to container spreaders shall be adhered to.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observedVr dculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2:1960 ‘Rules for
rounding off numerical values (revised)’. The number of significant places retained in the rounded off value should be
the saline as that of the specified value in this standard.
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1S 9881:2007
Indian Standard
CONTAINER SPREADERS — SPECIFICATION
(First Revision )
1 SCOPE
This standard specifies types, dimensions, material andtesting of spreaders for handling freight containers of
6 m (20 feet) and 12 m (40 feet).
2 REFERENCES
The following standards contain provisions whichthrough reference in this text, constitute provisions ofthis standard. At the time of publication, the editionsindicated were valid. All standards are subject to revisionand parties to agreements based on this standard are
encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below:
1S No. Title
800:1984 Code of practice for general
construction in steel (second revision)
2762:1982 Specification for wire rope slings andsling legs (first revision)
5245 (Part 2): Methods for splicing of wire ropes:
1971 Part 2 Wire rope sling legs with ferrule-
secured eye terminals
6566:2001 Series I freight containers —Classification, dimensions and ratings(second revision)
10880:1984 Specification for twistlocks for liftingfreight containers
3 TERMINOLOGY
For the purpose of this standard, following definitions,shall apply.
3.1 Fixed Spreaders — Spreaders constructed of fixedlength of 6 m (20 feet) or 12 m (40 feet).
3.2 Telescopic Spreaders — Spreaders constructed forextension tlom 6 m (20 &et) to 12 m (40 feet).
3.3 Sling Height (For Fixed Spreader Only) — Heightmeasured on a vertical plane passing through the centre,from a point on the top of spreader to a point where thesling will intersect, if produced, on this plane for a particular
sling angle.
3.4 Head Block (For Telescopic Spreaders) — An
attachment fitted with gantry cranes on which spreader isto be attached.
3.5 Sling Angle —Angle made by the sling on a verticalplane, passing through the diagonals of the spreader framewith the horizontal plane.
4 DIMENSIONS AND TOLERANCES
Length and width of spreader frames shall be based on
centre distance of twistlocks and in accordance withIS 6566 and Table 1. An illustrative sketch of spreader is
shown in Fig. 1.
5 MATERIAL FOR SPREADER ASSEMBLY
5.1 Spreader assembly comprises of the followingcomponents:
a) Wire rope slings and top bull ring;
b) Structural frame;
c) Twistlocks, nuts and guides;
Table 1 Dimensions of Eye Plates(Clause 4)
SI Dimensions a b c d 1? j(o) k’ h
No. Type mm mm mm m m mm mm m m m m
(1) (2) (3) (4) (5) (6) (7) (8) (9) (lo)
i) Spreader for 6 m 254 I 02 25 64 38 20° 30 13
(20 feet) container
ii) Spreader for 12 m 305 127 50 89 50 30° 40 19
(40 feet) container
I
1—117 BISINDI07
lS 9881 :2007 Is
zf$lN--I ‘d ~ OF WIRE ROPE/CHAIN
SLING.
II “\
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<SLOTTED LEVER13FvICE--.——
~“” “c0’ ‘“CK’NG““c’ A
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A_45“f (0)
J_c
Tim e
—
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H )- WELDING FILLET h
VIEW OF EYE PLATE
VIEW OF EYE PLATE
FIG. 1 CONTAINERSPREADER
2
_.
IS 9881:2007
d) Flapper guides;
e) Operating arrangements; and
t) Fork pockets.
5.2 Wire Rope Slings and Top Bull Ring
Itshall be manufactured according to IS 2762 and
1S 5245 (Part 2). It shall also be galvanized. The bull ringdimensions shall be maintained to negotiate with cranehooks.
5.3 Structural Frame
Heavy duty structural frames shall be designed for betterdurability and safe handling. Structural values to be derivedin accordance with IS 800.
5.4 ‘Nvistlock, Nuts and Guides
The twistlocks shall conform to IS 10880.
5.5 Flapper Guide
Flapper guides are required for easy locating container
comer casting, while placing the spreader on a container.It shall be heavy duty and fitted on a hinge so that it canbe retracted when not in use.
5.6 Operating Arrangements
Twistlock actuating arrangement, flapper guide loweringand retracting arrangement shall be manual Iy operated incase of fixed spreader and hydraulically operated, in caseof telescopic spreader.
5.7 Fork Pockets
Fork pockets may be provided to take forks of forklift
trucks for handling of spreaders.
6 TYPES OF SPREADERS
6.1 Common types of spreaders used are as follows.
6.1.1 Fixed type spreader to fit on a crane hook. It is either6 m (20 feet) or 12 m (40 feet).
6.1.2 Telescopic spreader to fit on the head block of agantry crane which can be extended from 6 m (20 feet) to12 m (40 feet), hydraulically operated and operative fromcrane operators cabin.
6.1.3 Telescopic spreader titted on a top lifter which canbe extended form 6 m (20 feet) to 12 m (40 feet), hydraulicallyoperated from driver’s cabin.
6.1.4 Telescopic spreader fitted on a forklift truck forlifting empty containers by two corner casting fi-om side.
7 SAFE WORKING LOAD/PROOF LOAD
The spreader shall be tested to a proof load and shall haveSafe Working Load (Lifting Capacity) as given below:
Tvpe of Size Safe Proof
Spreader m (feet) Working LoadLoad Tonnes
Tonnes
(1) (2) (3) (4)
Fixed spreader
Telescopic spreader(for gantry and toplitler)
Fixed or telescopicspreader for emptycontainer
6(20) 32 4312(40) 40 52
6(20) 32 43
12(40) 40 52
6(20)-12(40) 6 9
8 GENERAL REQUIREMENTS
Every spreader should have good workmanship, two coats
of good quality primer and two coats of good quality paint.Mechanism shall be well Lubricated.
9 MARKING
All spreaders shall be marked with distinguishing numberor mark, date of test and safe working load.
GMGIPN—117 Bls/ND/07—3oo
111111 .._.L. –-—------- ---- ._._ —-.—.
Bureau oflndian Standards
BIS is a statutory institution established under the Bureau oflndian ,7tandards Acz’, 1986 to promote harmoniousdevelopment of the activities of standardization, marking and quality certification of goods and attending toconnected matters in the country.
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Review of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard alongwith amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue
of ‘BIS Catalogue’ and ‘Standards: Monthly Additions’.
This Indian Standard has been developed from Doc : No. TED 12 (539).
Amendments Issued Since Publication
Amcmd No. Date of Issue Text Affected
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