Oblong Master Links – The Industry Standard for Rigging Applications
Oblong master links, also known as oval master links, are the most commonly used top links in rigging, serving as the head link for slings and bridle assemblies. They are essential components in chain, wire rope, and synthetic sling assemblies, providing a secure and reliable connection for lifting applications. Oblong master links come in various sizes, materials, and load ratings, with the proper safety factor (4:1 or 5:1) needing to be observed to ensure safe use. While most master links are made from Grade 100 steel, not all models adhere to this standard.
Crosby A-342 Oblong Master Links
The Crosby A-342 series is one of the most widely recognized oblong master link options in the industry, offering exceptional strength and durability. Available in sizes ranging from 1/2" to 5", these master links support a working load limit (WLL) from 7,400 to 395,000 lbs, making them suitable for a broad range of lifting applications. A distinguishing feature of the A-342 series is that sizes 4-1/4" and larger are welded, whereas smaller sizes are forged, ensuring optimized strength and load distribution for different lifting needs.
Gunnebo GrabiQ MF Oblong Master Links
The Gunnebo GrabiQ MF series is engineered for seamless integration with Gunnebo’s GrabiQ rigging system, offering a flat spot design that accommodates C-Lok (CL and CLD) and C-Grab (CG and CGD) fittings. This engineered feature allows for a secure and stable connection, improving performance in multi-leg sling assemblies. The WLL for the MF series ranges from 3,306 to 68,103 lbs, depending on whether one observes the EN 1677-4 (European standard) or ASTM A952 (U.S. standard). This range provides flexibility and reliability for applications requiring high-strength lifting solutions.
Versatility and Reliability in Rigging Applications
Oblong master links are preferred due to their versatile shape, which allows them to handle multi-leg sling assemblies with ease. Their oval design ensures even load distribution, reducing stress on connected components and extending equipment lifespan. Whether used in construction, heavy lifting, industrial rigging, or offshore applications, these master links provide trusted performance for professionals who require secure and efficient lifting solutions.