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Sling Capacities

Rated Capacity (Working Load Limit), For Wire Rope SlingsAs the angle of the sling leg decreases from 60° to 45° to 30°, as shown in the capacity chart, the rated capacity of the sling decreases.

All capacities in tons of 2000 lbs. Sling angles of less than 30° should not be used.

Sling Inspection

Conditions such as the following should be sufficient reason for consideration of sling replacement.

Evidence of heat damage; or if a wire rope sling having a fiber core is exposed to temperatures in excess of 200°F; or if a wire rope sling having a steel core is used at temperatures above 400°F or below minus 60°F.

Rated Capacity (Working Load Limit), For Alloy Steel Chain Sling in Pounds

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Caution: Serious damage to a chain may occur when a force exceeding the working load limit is applied to a chain or chain assembly. These working load limits must not be exceeded.

Inspection

Initial inspection. Prior to use, all new, altered, modified, or repaired slings shall be inspected by a designated person.

Inspection procedure for chain slings in regular service is divided into two general classifications based upon the interval at which inspection should be performed. The intervals in turn are dependent upon the degree of exposure of the sling components to wear and deterioration. The two general classifications are herein designated as frequent and periodic, with respective intervals between inspections as defined below.


Frequent Inspection. Visual examinations by the user or other designated personnel with records not required.

  1. Normal service - monthly

  2. Severe service - daily to weekly

  3. Special or infrequent service - as recommended by a qualified person before and after each occurrence.

Periodic Inspection. Visual inspection by a designated person making a record of the inspection or of apparent condition s to provide the basis for a continuing evaluation.

  1. Normal service - yearly

  2. Severe service - monthly to quarterly

  3. Special or infrequent service - as recommended by a qualified person before the first such occurrence and as directed by the qualified person for any subsequent occurrences.

Slings shall be inspected for defects and damage at intervals as defined above.

Visually inspect chain and attachments for wear, nicks, cracks. breaks , gouges, stretch, bends, weld splatter, discoloration from excessive temperature, and throat opening of hooks. Chain links and attachments should hinge freely with adjacent links.

In addition, visual observations should be conducted during regular service for any damage or evidence of malfunction that appears between regular inspections. Any deficiencies found shall cause the sling to be set aside for periodic inspection.

Customer Order Guide

(Example)

Rated Capacity (Working Load Limit) For Synthetic Web Slings in Pounds

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