Excessive screw barrel clearance is a common sign of wear in extrusion equipment. As the gap between the screw flight and barrel increases, molten plastic can flow backward, reducing conveying efficiency.

Typical symptoms include lower output, unstable melt pressure, poor plasticizing and increased energy consumption. Abrasive materials such as recycled plastics, glass fiber and mineral-filled compounds can accelerate wear.

If you suspect excessive screw barrel clearance, send us your screw diameter, machine model, processed material and existing dimensions. We can evaluate your application and manufacture a customized replacement screw and barrel.

Contact us for a quotation.

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