TG43 WJK Rail Clamp for P43 Rails

The TG43 WJK Rail Clamp is a standard welded rail fixture specifically engineered for securing P43 (43kg/m) rails to steel or concrete crane beams. It is characterized by its three-part assembly consisting of a weldable base, an upper cover plate, and a spherical hinge T-bolt.

Technical Specifications & Performance

The performance of the TG43 is largely determined by the material and bolt grade selected:

Variant Base Material Bolt Grade Max Lateral Force Tightening Torque

Standard Q235 Steel Grade C 45 KN 150 Nm

Enhanced Q345 Steel Grade 8.8 55 KN 220 Nm

Key Features

Spherical Hinge Connection: The T-bolt and base connect via a spherical joint, which allows for slight rail movement to reduce impact on the crane beam and braking system.

Weldable Base: The base plate is welded directly to the support structure using low-hydrogen electrodes (such as E4315 or E5015), eliminating the need for drilling.

Vibration Damping: Often used with elastic composite rubber pads (full-length or intermittent) to absorb shocks and minimize noise.

Installation Steps

Base Welding: Weld the base to the beam using two-sided (middle duty) or three-sided (heavy duty) welds.

Assembly: Place the rail, then insert the T-bolt, wedge adjustment plate, and upper cover plate.

Final Fastening: Install the washers and nut, then tighten to the required torque until the spring washer is compressed.

Signum Rail Fastening is able to offer rail clamps(rail clips) according to the client’s requirements.

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