Thedemand for small and light parts has made thin-walled injection moulding themost desirable performance of injection moulding machines.Thin walls areusually defined by lightweight electronic parts with a wall thickness of lessthan 1 mm.For large automotive parts, the "thin wall" can be 2mm.

Insummary, thin-walled products require changes in the processing: higherpressures and speeds, shorter cooling times, changes in part ejection and gatealignment.