The mixing head utilises a tapered mixing screw in a tapered chamber. The throughput can be selected from 20g/s up to 150g/s. Changing the colours is done from shot to shot without material waste, according to the company. The mixing head can be equipped with eight different component valves and can mix two or more components in one shot: these include colours and other additives as well as powder in form of PU waste. To guarantee an efficient production flow even when producing small parts from a difficult-to-mix PU system, the company offers low-pressure machines with mechanical mixing and a self-cleaning mixing head. PU is a very good adhesive and sticks in the case of direct injection onto the lasted upper, but not only there. PU pouring detail Low-pressure machine with self-cleaning mixing head
