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Chain Slings & Lifting Chains
Lifting & Rigging Chains
Chain slings and lifting slings are ideal for applications when extra strength and durability is required. Not only are chain slings more durable, temperature-tolerant, and cut-resistant than nylon web slings or polyester round slings, they are also very versatile.
Grade 100 Chain Slings
Grade 100 is becoming the industry-standard grade for chain sling manufacturing. Safe for overhead lifting, this alloy chain features exceptional strength and meets the U.S. standards of NACM, ASTM and OSHA. It's 25% stronger than Grade 80, the next level down.
Chain Sling Brands
We offer two trusted brands for you to choose from: Crosby and KWB.
Crosby has been a leader in the rigging and lifting industry for years and takes no shortcuts when it comes to manufacturing lift chain and rigging hardware. The Crosby chain slings we sell are manufactured right here in the USA and are expertly assembled by US Cargo Control.
KWB slings have a signal violet varnish coat and a heavy powder coating that helps with corrosion resistance. KWB is a Pewag company, based in Europe. We import and expertly assemble their manufactured chain and end fittings.
The chain slings labelled as domestic with Crosby parts are made with Peerless grade 100 chain and Crosby end fittings, master links, and connecting links. Those labelled as Crosby are made from all Crosby components, including the grade 100 chain.
Chain Lifting Sling Types
We sell two main types of slings: standard and adjustable, both of which can be configured a number of ways to ensure they meet the needs of the lift. Several different options are available, including number of legs, the size of the chain, and the length of the chain. Custom options for various end fittings are also available: just fill out our custom chain slings form or call our sales team.
Standard Chain Sling
Features one, two, three, or four lengths of chain, each with a master oblong link at the top, and your choice of hooks: foundry hook, grab hook, sling hook, or self-locking hook.
Adjustable Chain Sling
Designed with the same leg configuration as a standard chain sling, but also includes an adjustable fitting. This enables the operator to shorten the length of the leg as needed.
For more information on our adjustable chain slings, or to place an order, give our sales team a call.
How is the Reach of Lifting Chains Calculated?
A chain sling’s reach is the measured length from the load-bearing point on the sling’s master link to the load-bearing point on the opposite end when the sling is pulled taut.
End Fitting Options
The varied customization opportunities is what makes industrial chain slings so versatile and appropriate for a wide variety of lifting jobs. They are fitted with either a foundry, grab, sling, or self-locking hook. Adjustable slings feature an additional length adjusting mechanism.
There are several common end fittings to choose from:
- Sling hook: These large throat hooks are typically self-locking to avoid disconnecting.
- Self-locking hook: These hooks are designed to pivot in the middle and lock when lifting pressure is applied. They cannot be opened while lifted.
- Foundry hooks: Extra-large throat hooks used in unique situations that require a larger opening to manage loads.
- Grab hook: They have a small throat that attaches to the chain by slinging over the chain in-between links.
- Oblong master link: An oblong-shaped ring used at the top of chain slings.
Chain Sling Safety
- Always use within posted working load limit
- Distribute loads evenly - an unequal load on one leg can create a dangerous situation and damage the sling
- Rapid or sudden stops, impacts, and lifts should be avoided
- Do not allow a chain length to be twisted or tied into a knot
- Do not use slings with damaged, defective, or worn chain
- Protect sharp edges and corners accordingly with padding or protectors to keep chain from coming into contact
- Don’t forget to inspect hooks - never use if bent or distorted in any way
- Load hooks should never be tipped or pointed - a latch should never support a load
- Clean chains prior to inspection - oil and dirt can hide chain damage
Standard Sling Designations
Most chain slings will generally consist of a master link, a chain leg or legs, and a fitting such as a hoist hook. Sling manufacturers have a standardized sling designation that uses a three letter combination.
- The first letter indicates the number of legs: S=Single Leg, D=Double Leg, T=Triple Leg, Q=Quadruple Leg, C=Single leg with normal chain link on the end with no fitting.
- The second letter indicates the type of master link: O=Oblong Master Link, P=Pear Shaped Master Link, S=Sling Hook, G=Grab Hook.
- The third letter indicates the style of hook: S=Sling Hook, G=Grab Hook, F=Foundry Hook, L=Latchlock Hook, O=Oblong Link
For example, a sling with designation SOG has a single leg (Letter S), with an Oblong Master Link (Letter O) and a Grab Hook (Letter G).
Each component of the chain sling's configuration can affect the working load limit and break strength. To ensure it's easy to locate this information for each chain, they come with a metal ID tag attached that is stamped with the following information:
- Sling style
- Serial number
- Chain size and grade
- Working load limit at degree of lift
Proof testing has been done on every link of chain to ensure its working load limit. To get your custom chain sling tested at the time of manufacture, it must be requested when the order is placed with our sales specialists. For an additional fee, we will proof test and issue a certificate.
All of our chain meets or exceeds the latest guidelines of the National Association of Chain Manufacturers (NACM), ANSI B30.9 standards and OSHA specifications.
Even with proper care, chain will eventually begin to wear over time. It's important to regularly inspect the links of overhead lifting chain for minimum allowable thickness.
Once it's worn below this measurement, it should be removed from service.
|Size of Chain||Material Diameter||Minimum Allowable Thickness (T)|
|Inches||mm||Grade 80||Grade 100||Grade 80||Grade 100|
Heat's Effect on Chain Slings
While sling chain is considered extremely strong and durable, excessive heat can have an effect on the working load limit of a sling. Chain lifting slings used in excess of 400 degrees will experience a reduction in strength, both during exposure time and after exposure. See guidelines below.
|Grade 80||Grade 100|
|Reduction of Working Load Limit While at Temperature||Reduction of Working Load Limit After Exposure at Temperature||Reduction of Working Load Limit While at Temperature||Reduction of Working Load Limit After Exposure at Temperature|
|Above 1000||OSHA 1910.184 requires all slings exposed to temperatures above 1000 F to be removed from service|
NOTE: OSHA 1910.184 requires all slings exposed to temperatures over 1000º F to be removed from service.
Chain Sling Protection
"Slings in contact with edges, corners, protrusions, or abrasive surfaces shall be protected with a material of sufficient strength, thickness, and construction to prevent damage." - ASME B30.9 (2021) 9-5.10.4(d)
Other Lifting Slings
Overhead lifting chain slings are ideal for a range of heavy duty lifting jobs. If your application requires a different qualities, such as flexibility or stretch, see our entire selection of lifting slings, which includes fabric such as nylon and polyester, as well as heavy-duty wire.
If you need help selecting a lift sling, see our How to Choose a Lifting Sling page or call our product specialists. They’ll be happy to any answer questions you have.
Looking for chain for tie down applications? Check out our transport chain and binders page.