CPM offers quality used injection molding equipment, auxiliary lines of dryers, loaders, temperature controlers along with custom manufactured Screws and Barrels. Central Plastic Machinery
Si-300 II Specifications
Standard Features | Optional Features
Si-35 II
Si-55 II
Si-90 II
Si-110 II
Si-150 II
Si-200 II
Si-300 II
Si-400 II
Si-500 II
Si-750 II
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Injection Unit
System  In-line screw
Injection Unit  H-450AU
Injection stroke in 10.63
Screw diameter in 2.17 2.36 2.67
Nominal injection capacity in 39.3 46.6 59.8
Injection capacity (PS) oz 21.5 25.5 32.8
Injection rate in/sec 29.12 34.44 45.5
Max. Injection speed in/sec 7.87 7.87 7.87
Max. Injection pressure psi 34,128 28,440 21,330
Max. Holding pressure psi 28,440 24,174 18,486
Screw revolution rpm ~300
Nozzle pressure force U.S.ton 4.41
Hopper capacity gal 33.0
Clamping Unit   
Clamping system Double toggle
Clamping force U.S.ton 300
Clamping stroke in 22.83
Min. mold height in 9.84
Max. mold height in 27.56
Tie-bar clearance ( H x V ) in 28.74 x 28.74
Die plate size ( H x V ) in 37.00 x 37.00
Ejector force U.S.ton 7.9
Ejector stroke in 5.51
Heater capacity kw 19.2
Machine dim. ( L x W x H ) in 264 x 64 x82
Machine weight lbs 39,600
  1. *mark figure varies depending on molding conditions.
  2. Figures in are optional.
  3. The applicable max. injection pressure and holding pressure will be restricted according to the material in the real molding operation.
  4. The figures for the max injection rate and the max. injection speed are calculated ones. The actual injection rate and injection speed will be restricted by pressure. Actual setting pressure may be restricted by molding conditions and cycle time.
  5. The figures are subject to change without any legal obligation on the part of the manufacture.
  6. A large-sized screw may not be applicable to some kinds of material.