Rubber Machinery - Preformer 1.Preparing blanks before curing 2.Labor & compound saving 3.High precision of 1% by weight

Rubber machinery - 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 Model	JY-150	JY-200	JY-250	JY-250A
Barrel Inside Diameter/mm	150	200	250	250
Total Power/kw	16	16	2219	2219
Hydraulic Pump Motor/kw	7.5	7.5	117.5	117.5
Cutting Machine/kw	1.5	1.5	1.5	1.5
Vacuum Motor/kw	0.75	0.75	0.75	0.75
Power for Heating/kw	5	5	8	8
Motor of Hot Water Pump/kw	0.09	0.09	0.09	0.09
Conveyer Belt Motor/kw	0.18	0.18	0.18	0.18
Compressed Air Pressure/MPa	0.55	0.55	0.55	0.55
Max.Compound Extrusion  Pressure/MPa	36.8	20.7	17.0	17.0
Maximum Barrel Temperature/	95	95	95	95
Maximum Die Diameter/mm	80	125	190	220
Weight limit of Rubber Blank/g	0.3--100	0.3--200	0.3--2000	0.3--2000
Weight Accuracy of Product/%	±1	±1	±1	±1
Maximum Barrel Capacity(SG=1)/Kg	8-10	20-25	60-70	60-70
Cutter Speed (r/min)	35-300infinite speed regulation	35-300infinite speed regulation	23-300infinite speed regulation	23-300infinite speed regulation
External Dimensions L*W*H/m	3.6*1.1*1.6	3.6*1.1*1.6	5*1.1*1.6	5*1.1*1.6
Weight/T	2.9	3	4	4

Rubber Machinery - Precision Preformer