Right Angle Coupler

A Right Angle Coupler(also known as a Fixed Coupler)is a fundamental scaffolding component designed to securely connect two steel tubes at a precise 90-degree angle.It serves as the primary joint for constructing the standard rectangular or square grid pattern of tube-and-coupler scaffolding systems,ensuring structural rigidity and load-bearing capacity.

Key Functions&Importance

Structural Integrity:Forms perpendicular connections between vertical standards(uprights)and horizontal ledgers(horizontal members),creating the foundational framework of the scaffold.

Load Distribution:Transfers weights and stresses evenly across the scaffold structure,preventing localized failures.

Safety Compliance:Essential for building compliant scaffolding that meets international safety standards(e.g.,EN 74,AS/NZS 1572).

Design Features

Material:

Manufactured from drop-forged carbon steel for maximum strength.

Hot-dip galvanized surface treatment provides corrosion resistance for outdoor use.

Fixed 90-Degree Clamps:

Two rigid,perpendicular clamps ensure tubes are held at an exact right angle.

Wedge-bolt mechanism allows tightening by hammering or torque tools,creating a vibration-resistant lock.

Load Capacity:

Rated for high axial and shear loads(e.g.,typical models withstand≥6.5 kN shear load per EN 74 standards).

Applications

Scaffolding Assembly:Connecting standards and ledgers in traditional tube-and-fitting scaffolds.

Formwork&Shoring:Building temporary support structures for concrete pouring.

Guardrails&Handrails:Constructing safety barriers on construction sites.

Industrial Structures:Assembling frameworks for staging,temporary shelters,or equipment supports.

Installation Process

Place the coupler at the intersection of a vertical and horizontal tube.

Tighten the wedge bolts securely using a hammer or torque wrench to the specified force(e.g.,40 Nm).

Verify the connection is rigid and without movement.

Advantages

High Strength:Forged steel construction supports heavy loads.

Precision Alignment:Ensures perfect 90-degree connections for grid stability.

Durability:Galvanization resists rust and wear in harsh environments.

Interoperability:Compatible with standard scaffolding tubes(e.g.,48.3mm OD).

Safety Notes

Inspection Required:Check for cracks,deformation,or corrosion before use.

Proper Tightening:Undertightened couplers can lead to scaffold instability.

Prohibited Uses:Never use for diagonal bracing(requires swivel couplers)or axial tube connections(requires sleeve couplers).