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A Casting Fixed Coupler (also known as a Cast Iron Double Coupler or Right Angle Coupler) is a critical load-bearing component in tube-and-coupler scaffolding systems. The primary function of a casting fixed coupler is to join two scaffold tubes having an outside diameter of 48.3mm at a fixed 90-degree angle. It is used to connect standards (verticals) to ledgers (horizontals) or transoms, providing the main load-bearing structure of the scaffold.
Ensure the structural integrity of your scaffolding systems with our Heavy Duty Casting Fixed Coupler. Engineered for maximum grip and stability, this rigid 90-degree coupler is designed to connect two 48.3mm scaffold tubes with uncompromising safety.
Unlike pressed steel alternatives, our cast steel body offers superior durability and resistance to deformation, making it the ideal choice for heavy industrial projects, scaffolding rental companies, and long-term infrastructure construction.
Technical Specifications
|
Specification Item |
Details |
|
Product Name |
Casting Fixed Coupler / Double Coupler |
|
Material |
High-Grade Cast Steel / Malleable Iron |
|
Standard |
BS1139 / EN74 Class A & B |
|
Tube Diameter |
48.3mm x 48.3mm |
|
Weight |
0.95kg - 1.25kg (Customizable) |
|
Surface Finish |
Hot Dipped Galvanized (HDG) / Electro-Galvanized / Self-Color |
Casting vs. Drop Forged Couplers
|
Feature |
Casting Fixed Coupler |
Drop Forged Fixed Coupler |
|
Cost |
Lower. More economical to produce. |
Higher. More expensive process. |
|
Durability |
Good, but more brittle. Prone to cracking if dropped from heights or over-tightened. |
Excellent. Very high impact resistance and ductility. |
|
Load Capacity |
Medium/Standard. Suitable for general masonry and light construction. |
High. Preferred for heavy industrial, oil & gas, and offshore use. |
|
Appearance |
Rougher surface texture; slightly bulkier design. |
Smoother surface; streamlined design. |
Common Applications
- General Construction: Residential building and masonry work.
- Formwork Support: locking tubes in place for concrete pouring.
- Mobile Towers: Simple rolling tower structures.
