A bimetallic screw barrel for glass fiber reinforced plastics can significantly improve wear resistance when processing PA+GF, PP+GF and other abrasive materials.

Glass fiber is highly abrasive. During continuous production, it can gradually wear the screw flights and barrel bore, increasing screw-barrel clearance and reducing processing efficiency.

For these applications, a bimetallic screw barrel is often a better choice than a standard nitrided design. Wear-resistant alloy can be applied to critical working surfaces to improve abrasion resistance and extend service life.

The correct solution depends on the polymer, glass-fiber percentage, screw diameter and operating conditions.

If you need a replacement screw barrel for GF materials, send us your machine model + plastic material + GF percentage + screw drawing. We can recommend a suitable material and manufacture according to your dimensions.