Rubber Soles Machine - Precision preformer is a kind of high-efficiency and high-precision device for manufacturing rubber solesblank. It can be used in combination with a wide range of rubber material in extruding rubber blank of mid to high hardness with high precision volume and low air content. Structure introduction The precision preformer is composed of a ram extruder and a rubber blank cutter attached to the ram head. It is also equipped with hydraulic, vacuum, heating, pneumatic and electrical system. While in operation, the first step is to open the ram head and add the preheated prehensile rubber material into the machine from anterior part of the barrel. After that, the ram head is to be closed to adjust the extruding and cutting speed (volume control chart is provided with the machine). Eventually, after vacuumization and cutting, the rubber blank with precise weight will then be obtained. Technical Parameter Items Unit JY250 Barrel inside diameter Mm 250 Total power Kw 19 Max. oil cylinder pressure MPa 17 Max. barrel temperature °C 95 Max. die Length Mm 300 Rubber weight range G 0.3-2000 Rubber blank weight accuracy % ±1.0 Feeding volume Kg 60-70 Cutter speed r/min 23-300 Overall dimension (L×W×H) M 5×1.1×1.6 Weight T 4.0