OEM Construction Carbon Steel Stamping Forging Scaffold Clamp Scaffolding Coupler

A Scaffolding Coupler is a critical load-bearing component used to securely connect two scaffold tubes (pipes) together, forming a rigid and stable scaffold structure. Its primary function is to transfer forces between tubes, ensuring the integrity and safety of the entire system. Proper coupler selection and installation are essential for structural stability.

Yes, complementary types include: Putlog Coupler (Single Coupler): Used to attach a single transom (putlog) or board bearer to a ledger. It has one fixed jaw and one sliding jaw. Girder Coupler (Beam Clamp): Specifically designed to clamp onto the flange of an I-beam or universal beam, providing a secure anchor point for the scaffold. Base Plate: A plate fixed to the bottom of a standard to distribute the load to the ground or supporting surface.

High-quality couplers are typically forged from low carbon steel or alloy steel for high strength and ductility. The standard corrosion protection is hot-dip galvanizing (HDG), providing a durable, thick zinc coating suitable for harsh outdoor and industrial environments.

The SWL is the maximum load the coupler is certified to sustain under normal use. According to BS EN 74-1, a standard right-angle or swivel coupler must withstand a minimum slip load of 6.25 kN and a minimum ultimate load of 15 kN. Sleeve couplers have higher tension/compression requirements. Always check the manufacturer's certification.

You must match the coupler to the tube's outside diameter (O.D.). The most common sizes are: 48.3mm O.D. Tube (Scaffold Tube): Use a 50mm Coupler (nominal size). This is the industry standard. 42.4mm O.D. Tube (Tube & Fitting): Use a 48mm Coupler. 60.3mm O.D. Tube (Heavy Duty): Use a 60mm Coupler. Using the wrong size is extremely dangerous.