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Accumulator Assist Injection Molding Machine
 
Gas Assist Injection Controller Unit
 
Specification: H series are from LCH-H80 to LCH-H500 (specification chart); V series are from LCH-V100 to LCH-V850 (specification chart).
Computer: Compatible with D type computer.
Hydraulic Circuit:

Compatible with the followings:
Proportional Pressure & Speed Type
High Speed Type
Energy Saving Servo Hybrid Type
Energy Saving Variable Pump System
Energy Saving Inverter System
Accumulator Injection Closed-Loop Type
Semi Closed-Loop Type
Double Loop Circuit Type

More compatible types available, please contact us for detail.

 

The plastic injection temperature is usually high. Injecting with air will burn the plastic since the oxygen in the air is flammable, which would be more obvious for transparent plastic parts. Therefore, injection molding machine uses nitrogen since it is not flammable.

Accumulator assist injection molding machine must be installed with a set of gas assist injection equipment, including:

  1. Nitrogen producing machine or nitrogen bottles (grade nitrogen purity to 99%).
  2. High-pressure nitrogen compressor and for a little quantity production can use pressurized cylinder mode.
  3. High-pressure gas cylinders (for bigger quantity production use).
  4. Gas assisted controller (it have single loop circuit and multi loop circuit two type).

Accumulator assist injection molding machine is specialized in avoiding sink mark, warping, flow line mark, reduce product weight (up to 50% depending on product condition), product cost, molding cycling time (up to 30% depending on product condition), increasing production efficiency, and internal force.

Gas-assisted injection molding flow chart:


The above diagram explains that the nitrogen can be injected when either the injection complete or incomplete. The machine uses gas assist injection controller unit to control nitrogen pressure and time to achieve the pressure holding performance, then open the mold to take out the product after gas went out.

Accumulator assist injection molding machine has been used to make television frame, car handle, steering wheel, and home products like chair, table, handle, clothe hanger..., etc.