Cast Nylon Pulley and Sheaves

Cast Nylon/Polyamide sheaves are superior to aluminum or steel sheaves for wire rope load applications.  For more than 50 years, they have replaced steel and aluminum sheaves in cranes, hoists and other load bearing wire rope applications.  Cast nylon/polyamide sheaves are now the sheaves preferred by the world’s leading crane and hoist manufacturers as well as in a variety of other heavy duty mechanical applications.

There are numerous advantages of a Castomid  sheave or pulley over conventional steel or iron sheaves.

These advantages include:

  • Lightweight

Castomid Sheaves are 1/8th the weight of steel or iron sheaves. This improves the lifting capabilities of mobile and fixed boom cranes and eases installation.

  • Longer Rope Life

Castomid Sheaves are better suited to the “on again, off again” loading typical for this application. The rope grooves will flex under the load of the rope providing increased support to the rope.

  • Increased Loads

The arm weight of telescoping cranes is decreased because Castomid Sheaves are lighter than steel and iron sheaves. Castomid sheaves and pulleys flex under the load of the rope increasing the contact area between the rope and groove which increases load capacity.

  • Decreased Operating Costs
  • Corrosion Resistant

Castomid Cast Nylon Sheaves will not rust or corrode.