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Servo Hydraulic Injection Molding Machine
A plunger-type injection molding machine is an injection molding machine that uses a plunger-type plasticizing device to plasticize the molding material, and then uses a specially designed injection plunger to fill the mold. An injection molding machine that uses a plunger-type plasticizing device to plasticize the molding material, and then uses a specially designed injection plunger to fill the mold. Compared with ordinary plunger injection molding machines, it has the characteristics of uniform plasticization, stable injection volume, and small pressure loss.
Simple Mechanical Structure:
The machine structure is relatively simple, mainly consisting of a heated barrel, a plunger (or ram) at one end, and a nozzle.
Maintenance is comparatively easy due to fewer and more direct components.
Lower Production Rate:
Due to slower plasticizing speed and lower thermal efficiency, the cycle time is typically longer, resulting in a lower production rate than modern screw injection machines.
Applicable Scope:
Mainly used for plastics with good thermal stability and low mixing requirements (such as Polystyrene, PS).
Choose a screw machine if: You need high-volume production, high-quality parts, good material mixing, and can handle the higher initial investment. It is the standard for most modern injection molding.
Choose a plunger machine if: Your budget is a primary concern, you are only producing basic shapes or small runs, and you don't need the highest levels of precision or speed. It is a simpler, more budget-friendly solution for specific, less demanding tasks.
