Scaffold couplers (commonly known as couplers or steel pipe clamps) are indispensable core connecting components in the coupler-type scaffold system. They are primarily used to connect and secure construction steel pipes with an outer diameter of Ф48.3mm. By tightening bolts to clamp the pipe body, individual steel pipes are assembled into scaffolds and support towers with extremely high load-bearing capacity and overall stability.
Core Product Categories and Functions
-
Right Angle Coupler (Right Angle Clamp / Cross Clamp)Used to connect two steel pipes intersecting at right angles (e.g., vertical posts and horizontal ledgers), primarily bearing the vertical shear force transmitted from the ledgers. It is the most widely used type of coupler.
-
Swivel Coupler (Swivel Clamp / Universal Clamp)Used to connect two steel pipes intersecting at any angle (e.g., diagonal braces, cross braces, and vertical posts), featuring 360° free rotation to enhance the geometric stability of the scaffold structure.
-
Sleeve Coupler (Sleeve Clamp / Straight Clamp)Used for the smooth end-to-end connection of two steel pipes (e.g., extending vertical posts or ledgers), ensuring axial force transmission along the pipe body.
Manufacturing Process Classification
-
Cast Steel / Malleable Iron Couplers: Manufactured using traditional processes, featuring thick walls and heavy weight, stable mechanical properties, and high cost-effectiveness.
-
Pressed Steel Couplers: Formed by stamping high-quality steel plates, offering excellent toughness, lighter weight, and outstanding fracture resistance. Widely used in international and high-end markets.
Key Product Advantages
| Advantage Dimension | Detailed Description |
| Strong Clamping Force | Precisely matches the Ф48.3mm standard steel pipe outer diameter. After bolt tightening, friction is high, providing excellent slip resistance (the slip resistance load-bearing capacity of right angle couplers far exceeds national standard requirements), ensuring no loosening or slipping. |
| Excellent Toughness and Fracture Resistance | Manufactured with high-quality materials and strict heat treatment processes, resistant to drops and impacts, and not prone to cracking even under high-intensity construction site conditions. |
| Corrosion-Resistant and Durable Surface | Available with cold galvanizing, hot-dip galvanizing (HDG), or surface paint coating for rust prevention, effectively resisting mud, water, and outdoor weathering, with a high number of reuse cycles. |
| Versatile and Flexible Assembly | When combined with steel pipes, it enables assembly at any angle and any dimension, making it the ideal choice for irregular structures, complex sites, and localized reinforcement. |
Primary Application Scenarios
-
Used in conjunction with Ф48.3mm dedicated coupler-type steel pipes to erect building exterior wall scaffolds and interior support towers.
-
Combined with steel scaffold planks/boards and safety protective netting to assemble construction edge protection guardrails, safety access corridors, and material platforms.
