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Rubber Machine-Blank Pre-forming Machine
Rubber Machine-Blank Pre-forming Machine

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

   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 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

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