... , speed-reducing box, dividing box, feeding system, screws, barrel, stander, cutter, and heating and cooling devices.4.2 The electric motor can ... change. Passing through shaft joint, speed-reducing box and dividing box, the screws running speed is 5-62rpm, which meets the ... . 4.8 Quota feeding system consists of electric motor, screws and so on. Frequency converter changes the running speed of ...