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-400 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-450BU
Injection stroke in 12.05
Screw diameter in 2.36 2.68 2.95
Nominal injection capacity in 52.73 67.77 82.37
Injection capacity (PS) oz 28.96 37.21 45.26
Injection rate in/sec 31.05 39.84 48.51
Max. Injection speed in/sec 7.09 7.09 7.09
Max. Injection pressure psi 29,862 24,741 19,908
Max. Holding pressure psi 27,018 21,330 17,064
Screw revolution rpm ~260
Nozzle pressure force U.S.ton 4.41
Hopper capacity gal 33.0
Clamping Unit   
Clamping system Double toggle
Clamping force U.S.ton 400
Clamping stroke in 25.60
Min. mold height in 11.81
Max. mold height in 30.31
Tie-bar clearance ( H x V ) in 31.89 x 31.89
Die plate size ( H x V ) in 41.34 x 41.34
Ejector force U.S.ton 7.9
Ejector stroke in 5.9
Heater capacity kw 25.6
Machine dim. ( L x W x H ) in 300 x 66 x93
Machine weight lbs 46,200
  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.