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Loadguard Slings, Bridles and Other Wire Rope Assemblies and Fittings

Alloy Chain Slings - Grade 100

 Single Leg Slings - Vertical (90 deg.)

 

! WARNING ! :

General Safety Guidelines for Chain & Attachments

Brown and Perkins, Inc., can only control the specifications of our chain products in accordance with industry and governmental standards for chain manufacturing. It would be impossible for any warning to contain all of the possible misapplications associated with the use of Brown and Perkins, Inc. products. Our warnings are intended to identify only those risks which are most common. The responsibility and understanding of the proper safe use and application of the products in our catalog, ultimately rest with the end user.

We are not responsible for the end user’s assembly in which our chain may be used. Failure of the product can occur due to misapplication, abuse, intentional alteration or improper maintenance. Product failure can result in property damage, personal injury or death.

Working Load Limit (WLL)

The “Working Load Limit” (rated capacity) is the maximum load that shall be applied in direct tension to an undamaged straight length of chain.

Proof Test

The “Proof Test” (manufacturing test force) is a term designating the minimum tensile force which has been applied to a chain under constantly increasing force in direct tension during the manufacturing process. These loads are manufacturing integrity tests and shall not be used as criteria for service or design purposes.

Minimum Breaking Force

The “Minimum Breaking Force” is the minimum force at which the chain during manufacture has been found by testing to break when a constantly increasing force is applied in direct tension. Breaking force values are not guarantees that all chain segments will endure these loads. This test is a manufacturer’s attribute acceptance test and shall not be used as a criteria for service or design purposes.

The Working Load Limits and the associated safety factor of each Peerless product may be affected by wear, misuse, overloading, corrosion, deformation, intentional alteration and other use conditions. Regular inspection must be conducted to determine whether use can be continued at the assigned Working Load Limit, a reduced Working Load Limit or whether the product must be withdrawn from service. The terms “Working Load Limit”, “Proof Test” and “Minimum Breaking Force” contain no implication of what load the chain will withstand if the chain is used in such conditions of abuse and misuse. Brown and Perkins, Inc. accepts no liability for any such abuse or misuse.

The Working Load Limit of a sling or assembly must not exceed the lowest Working Load Limit of the components in the sling or assembly. Use only Brown and Perkins, Inc. approved parts as replacements when servicing or repairing original Brown and Perkins, Inc. slings or assemblies.

USE ONLY GRADE 80 OR GRADE 100 ALLOY CHAIN AND ATTACHMENTS FOR OVERHEAD LIFTING.

PRODUCTS ARE INTENDED TO BE USED AT OR BELOW THE MAXIMUM WORKING LOAD LIMITS SPECIFIED IN CONSTANTLY INCREASING FORCE APPLICATIONS UNDER DIRECT TENSION OR IN A STRAIGHT LINE PULL.

SHOCK LOADING IS PROHIBITED AND SIDE LOADING MUST BE AVOIDED, AS IT EXERTS ADDITIONAL DYNAMIC FORCES OR LOADING WHICH THE PRODUCT IS NOT DESIGNED TO ACCOMMODATE.

THE CONDITIONS INVOLVING USE IN CERTAIN ENVIRONMENTAL SITUATIONS SUCH AS UNUSUAL (HIGH OR LOW) TEMPERATURE, CHEMICAL, ETC…, CAN CAUSE CHANGES IN CHAIN PERFORMANCE.

All chains and attachments in this catalog are capable of creating sparks unless otherwise noted.

Welding load support parts or products can be hazardous. Knowledge of materials, heat treatment and welding procedures are necessary for proper welding.

Table of Chain Wear

If chain is worn to less than the minimum allowable thickness (T), remove the chain from service. Chain Wear Illustration
Minimum Allowable Chain Link Thickness at Any Point
Nominal Chain Size Minimum Thickness (T)
Inches mm Inches mm
7/32″ 5.5 0.189 4.80
9/32” 7 0.239 6.07
5/16″ 8 0.273 6.93
3/8” 10 0.342 8.69
1/2” 13 0.443 11.26
5/8” 16 0.546 13.87
3/4” 20 0.687 17.45
7/8” 22 0.750 19.05
1” 26 0.887 22.53
1-1/4” 32 1.091 27.71
REFER TO ASME B30.9

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Chain Sling Safety Checklist

Check #1 – Inspections Visually examine the sling before each use. Look for stretched, gouged, bent or worn links and components, including hooks, with open throats, cracks or distortion, if damaged, remove from service. Check 1: Inspections
Check 1B: Inspections
Check #2 -Balance Know the load — determine the weight, center of gravity, angle and lift and select the proper size of sling. Check 2: Balance
Check #3 – Overload Never overload the sling — check the working load limit on the identification tag. Always consider the effect of Angle of Lift — the tension on each leg of the sling is increased as the angle of lift, from horizontal, decreases. Use the chart in the Peerless Industrial Group catalog or in the Peerless Chain Sling User’s Manual for this purpose. Check 3: Overload
Check #4 -Knots, Twists & Kinks Make sure chain is not twisted, knotted or kinked before lifting load. Slings should not be shortened with knots, bolts or other make-shift devices. Check 4: Knots, twists & kinks
Check #5 – Sharp Edges Protect chain with padding when lifting sharp edged loads. Check 5: Sharp edges
Check #6 – Abrupt Movement Lift and lower loads smoothly. Do not jerk. Check 6: Abrupt Movement
Check #7 – High Temperatures Do not expose alloy chain or sling to temperatures of 400°F or higher. Check 7: Temperatures
Check #8 – Chain Care Store slings properly on an A-Frame and protect chain slings from corrosion during storage. Check 8: Chain Care

 

WARRANTY:

Any warranty, expressed or implied as to quality, performance or fitness for use is always premised on the condition that the published rated capacities apply only to new, unsed slings, that the mechanical equipment on which such products are used is properly designed and maintained, that such products are properly stored, handled, used and maintained, and properly inspected during the period of use.

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