How to adjust the screw gap of conical type twin-screw plastic extruder

Adjusting the screw gap of a conical type twin-screw plastic extruder usually includes the following steps:

Safety preparation: Make sure the equipment is shut down and let it cool down to avoid high temperature damage.

Remove the protective cover: Remove the protective cover of the screw so that the screw part can be inspected.

Check the gap: Use a gap measuring tool (such as a feeler gauge) to measure the current screw gap.

Adjust the gap: Find the adjustment nut or bolt and increase or decrease the gap between the screws by turning them. Usually, uniform adjustment is required to ensure the symmetry of the screw.

Reassembly: After the adjustment is completed, make sure all parts are reassembled safely and tighten the protective cover.

Test run: Start the extruder, observe the operation, and confirm whether the gap adjustment meets the production requirements.

Performing these inspections and adjustments regularly will help improve the working efficiency of the equipment and the quality of the final product.