It is to press, squeeze and grind the soap for refining effects and output as soap pellets. It uses all-hard-teeth precisely-grinded gear reducer. The screw is made of high quality stainless steel or aluminum alloy, which is strong corrosion-resistant and durable for long production. All other parts which are in contact with the soap are made of high quality stainless steel. The production capacity can be adjusted by the VFD or the electromagnetic speed regulation motor.