- Determine the maximum load to be lifted.
- Determine the type of slings needed (single, double, etc.)
- Estimate the proper angle between the leg of the sling and the load during operation
(see Maximum Work Load Chart below).
- Select the proper fittings (hooks, master links, etc.)
- Determine the overall reach (measured from bearing point on master link to bearing point of fitting).
- Choose chain size which meets your required work load, angle and reduction factor
(see Maximum Work Load Chart below).
- Call us at 305.636.3000 to discuss your assembly and a pricing quote.
Standard Assemblies of Grade 100 Chain
Maximum Work Load of Various Chain Sling Applications
To be used for various slinging methods and conditions without shock loads.
Alloy Steel Chain Sling Warnings and Use Limitations
The following contains warnings and use limitation information applicable to Gunnebo Lifting Grade 100 Alloy Steel Chain Slings and components.
- Never use a sling without training:
OSHA regulation requires responsible work practice.
“The employer shall permit only those employees qualified by training or experience to operate equipment or machinery” – OSHA 1926.20 (b)(4).
Employee training should include information given in OSHA training literature, ASME B30.9 – 2003 “Slings” and ASME B30.10 – 2005 “hooks” Safety Standards, and this document.
- Always inform yourself:
Ask your employer for chain sling safe use instruction.”The employer shall instruct each employee in the recognition and avoidance of unsafe conditions and the regulations applicable to his work environment to control or eliminate any hazards or other exposure to illness or injury” = OSHA 1926.21 (b)(2).
- Always comply with applicable Federal and local regulations:
Federal and local regulations govern work site activity.Understand all governing laws and safety standards before use of chain slings. OSHA 1910.184 regulates chain sling safe operating practices, product identification, inspection requirements, and use limitations. ASME B 30.9-2003 “Sling” safety standard provides additional recommendations for chain sling use.”If a particular standard is specifically applicable to a condition, practice, means, method, operation, or process, it shall prevail over any different general standard…” – OSHA 1910.5(c)(1).
Contact OSHA at (800) 321-6742, or www.OSHA.gov and ASME at (800) 84302763, www.ASME.org for reference assistance.
- Always know load weight:
Avoid sling failure. “The rated load of the sling shall not be exceeded.” – ASME B30.9-1.10.1(c).Weight of the load to be lifted must be known for determination of proper sling configuration and working load limit.
- Never use a sling without a legible identification tag:
Sling identification is required to ensure proper sling application.”Alloy steel chain slings shall have permanently affixed durable identification stating size, grade, rated capacity, and reach.” – OSHA 1910.184 (e)(1)”Hooks, rings…or other attachments shall have a rated capacity at least equal to that of the alloy steel chain with which they are used of the sling shall not be used in excess of the rated capacity of the weakest component…” – OSHA 1910.184(e)(2)(ii)
“Makeshift links or fasteners…shall not be used.”-OSHA 1910.184(e)(2)(ii)
Gunnebo Johnson Corp. provides a blank identification tag, attached by a coupler, to be stamped with sling WLL, minimum working range angle, serial number, chain size, grade, reach, type and manufacturer. Order 547303 for replacement.
Grade of component with the lowest breaking strength shall be specified on the identification tag. Nonstandard grades shall be designated by “NS.”
Working Load Limit (WLL) is the maximum working load for a specified working range. Sling working range includes sling leg angles from 90° to a specified minimum. The specified minimum working range angle is given on the identification tag.
Working load is to be applied vertically to a sling assembly having symmetric leg angles. WLL applies to loads lifted vertically and does not include torsional, binding, shock or non-symmetrical load effects.
Gunnebo Lifting Grade 100 Alloy Steel Chain Straight Leg and Basket Sling Working Load Limits for selected working ranges of symmetric sling leg angles are listed in pounds and given in TABLE 1A & 1B. No chain sling shall be rigged with a leg angle less than 30° from the horizontal.