Rubber Machine-Blank Pre-forming Machine

Rubber machine - Precision preformer is a kind of high-efficiency and high-precision device for manufacturing rubber blank. It can be used in combination with a wide range of rubber material in extruding rubber blank of mid to high hardness and of intricate shapes such as circle and solid figures. Owing to its high precision volume and low air content, it is capable of producing products ranging from rubber sundries, sealing members, inflating valves, tennis balls and shoe soles. 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 Machine ModelJY-150JY-200JY-250JY-250ABarrel Inside Diameter/mm150200250250Total Power/kw161622192219Hydraulic Pump Motor/kw7.57.5117.5117.5Cutting Machine/kw1.51.51.51.5Vacuum Motor/kw0.750.750.750.75Power for Heating/kw5588Motor of Hot Water Pump/kw0.090.090.090.09Conveyer Belt Motor/kw0.180.180.180.18Compressed Air Pressure/MPa0.550.550.550.55Max.Compound Extrusion Pressure/MPa36.820.717.017.0Maximum Barrel Temperature/95959595Maximum Die Diameter/mm80125190220Weight limit of Rubber Blank/g0.3--1000.3--2000.3--20000.3--2000Weight Accuracy of Product/%±1±1±1±1Maximum Barrel Capacity(SG=1)/Kg8-1020-2560-7060-70Cutter Speed (r/min)35-300 infinite speed regulation35-300 infinite speed regulation23-300 infinite speed regulation23-300 infinite speed regulationExternal Dimensions L*W*H/m3.6*1.1*1.63.6*1.1*1.65*1.1*1.65*1.1*1.6Weight/T2.9344