Type SC Shackles

Type SC shackles get dipped in molten zinc (hot-dip galvanizing) to create their protective coating. This helps them hold up against salt spray for 500+ hours during testing. The zinc layer basically teams up with the metal underneath to block rust, sun damage, and chemical spills.

If you need something tougher, these shackles can also be sprayed with an epoxy powder coating. They usually come in bright safety yellow so they’re easy to spot, but you can pick other colors too. The finish stays smooth so things like ropes or chains slide easier against them,which helps prevent wear on whatever they’re hooked up to.

We laser-etch the load numbers and cert info straight onto the metal. It stays readable for years and won’t fade off, plus the etching process doesn’t affect the shackle’s strength.

Size

Type SC shackles come in 10 standard sizes, with pin diameters from 1/4” to 1-1/2”. Their working load limits (WLL) go from 0.75 tons up to 55 tons. Each one is stamped with its WLL, material grade (like Grade 8 or 10), and a batch number for tracking.

The bow-to-bow design spreads the load evenly, and they’re built with a 6:1 safety factor,higher than most industries require. Custom sizes are available from the XiaoGuo® factory, consult with our engineering team to confirm load specifications. We can also provide dimensional charts and CAD files to help you install these shackles on your equipment.

Features

Q: What is the working load limit (WLL) and safety factor for Type SC shackles?

A: Type SC shackles have standard working load limits (WLL) based on their size, from 0.5 to 100 tons. The safety factor is usually 6:1, which is better than what most industries require,for example, ASME B30.26 calls for 5:1. This means they hold up well under sudden or shifting loads. Always look at the WLL marked on the shackle itself and don’t exceed it. The shackles also go through break testing to check their minimum breaking load (MBL) and add an extra layer of safety.