Crane Wheel Blocks

The DRS wheel block is a versatile, multipurpose wheel block system designed to be integrated into various travel units. For a semi-gantry crane—which typically runs on one elevated runway and one floor-level rail—the wheel blocks must handle significant lateral forces and uneven loading.

Key Components:

The Housing: A high-quality, impact-resistant aluminum or spheroidal graphite cast iron box that protects the internal bearings.

The Wheel: Usually made from nodular graphite cast iron (Spheroidal graphite cast iron) for self-lubricating properties and reduced wear on the rail.

The Bearings: Heavy-duty roller bearings designed to absorb both radial and axial loads.

Why Double Flange for Semi-Gantry Cranes?

In a semi-gantry setup, the "leg" side of the crane travels on a ground rail. This rail is prone to collecting debris or having slight alignment variations.

Superior Guidance: The double flange acts as a "track keeper." With a flange on both sides of the rail head, the wheel is physically prevented from jumping the track, even if the crane experiences a slight "skew" (crabbing) during movement.

Lateral Force Absorption: Semi-gantry cranes often carry asymmetrical loads. The double flange setup provides a mechanical stop against horizontal forces, ensuring the crane stays centered on the floor rail.

Reduced Derailment Risk: Unlike single-flange wheels used in overhead bridges, the double flange is essential for ground-level rails where safety margins for lateral movement are tighter.

Technical Advantages of the DRS System

For a semi-gantry crane, using a Double Flange DRS system on the floor rail ensures that the transition between the stiff elevated runway and the more flexible ground travel is seamless. It compensates for the inherent "walking" tendency of long-span cranes and protects your infrastructure from premature wear. Ready for a smoother, more reliable crane performance?Simply let us know your required load capacity and span, and we’ll show you how the DRS Double Flange system provides the ultimate protection for your workshop. Get in touch.