Product Spotlight: Hammerlock Coupling Links
What is a Hammerlock Coupling Link?
Hammerlock coupling links are used for attaching chain to master links, eye type hooks, installing a new branch to a sling or just connecting components during chain sling fabrication.
Hammerlock coupling links should NEVER be used to repair hoist chain—No coupling hardware should ever be used to repair a damaged link of chain. This can present a number of safety hazards to the operator and possibly the overall hoist. In the case of hoist chain damage or ware, the chain needs to be replaced as one piece.
Hammerlocks are also not appropriate for lengthening chain. Once again, if you desire a longer chain, you need to seek out a chain that is fabricated to the correct length, using the correct links.
Assembly and Disassembly of Hammerlock Coupling Links
Hammerlock coupling links are a favorite of riggers because they can so easily be assembled and disassembles in the field using only a hammer and punch.
How to assemble a hammerlock link:
- Bring the two halves of the body together so the center connectors are aligned
- Position the bushing in the center of the hammerlock, aligned with the connectors
- Insert the load pin through the hammerlock as far as you can by hand
- Hammer the load pin the rest of the way in, until all material is flush on both ends
Did you know the bushing in the center is one of the most important parts of a hammer coupling link? Without the bushing, the load pin on its own will not hold the hammerlock coupling together at all – It actually moves quite freely within the body on its own. The load pin is tapered on the ends which allows the bushing to sit in place and hold the hardware securely together. The bushing contains a spring-like system that allows the pin to push through when hammered, but returns to an un-movable state once in place – Unless directly hammered again using a punch!
How to disassemble a hammerlock link:
- Place the hammerlock link on a raised surface, creating room for the load pin to exit the bottom
- Align a punch with the center-top of the load pin
- Hammer the punch forcing the load pin out from the center of the hammerlock
- Pull now loosened parts apart by hand – It’s that easy!
In need of an affordable and reliable hammerlock coupling link?
That’s where YOKE comes in—With YOKE you never have to sacrifice quality for price. Find YOKE Hammerlock Connecting Links for Grade-100 Chain at your local Hercules SLR. YOKE Hammerlock connecting links are made of alloy steel and are quenched and tempered for maximum strength, reliability, and durability with a working load limit of 8800 pounds.
Since 1985, YOKE manufactures durable, reliable & high-quality rigging hardware that keeps your load secure, and your team safe. They run a strict production facility, with a huge emphasis on quality control & safety at every stage of the manufacturing process—From raw materials to the finished product for the end-user, with facilities across the globe, in Canada, Los Angeles and China. To learn more about YOKE at Hercules SLR, click here.