St/Steel Pin Mill These pin mills are great for fine grinding of dry materials. Product is fed into the hopper and then into the centre of the pin mill. Different screen sizes can be fitted to change the fineness of the output. The bearing housing is jacketed to help keep it cool if running for long periods of time. Screen diameter 320mm x 1mm screen hole size. Other screen sizes available on request. Finest screen that can be run in these mills is 0.5mm. Capacity up to 300kg/hr Throat opening in hopper is 100mm x 100mm. Hopper size is 450mm x 450mm x 300mm deep Drive motor 5.5kw 415V