PRO-GR100-OS Grade 100 Master Link
Grade 100 steel master links are used on top of lifting sets and their role is to fix the chain, wire rope or textile sling leg(s) to the existing upper clamping system (usually hooks).
Grade 80 similar product is master link PRO-OS
Master links are manufactured according to EN 1677-4 standard requirements and american standard ASTM A973. They are batch numbered and marked accordingly, with batch code, manufacturer, size and CE mark.
The master link type PRO-GR100-OS has to be used always with an one or two legs chain (usually grade 100 chain), wire rope or textile sling system.
This master link has a safety factor of 4, which means that minimum breaking load MBL is 4 times higher than maximum work load limit WLL.
WLL exceeding (overloading) is strictly forbidden!