Plastic Screw Feeder

Plastic screw feeder is an important auxiliary equipment in the plastic processing industry. It is mainly used for automatic conveying of raw materials (such as granules, powders, recycled materials, etc.) to improve production efficiency and raw material management accuracy. The following is an introduction to its core applications:

1. Injection molding

Automatically convey plastic granules to the injection molding machine to ensure continuous feeding and reduce manual feeding errors.

2. Blow molding/extrusion process

Stably feed the blow molding machine or extruder to ensure the consistency of raw materials for long-term production.

3. Recycled material processing

Mix new materials and recycled materials (adjustable ratio) to achieve environmentally friendly reproduction.

4. Masterbatch/additive ratio

Precisely control the ratio of masterbatch, additives and main materials through a multi-raw material suction machine (such as a three-in-one suction machine).

1. Vacuum feeder: suitable for long-distance conveying, dust-free operation, suitable for clean workshops (such as food-grade plastic production).

2. Screw feeder: for powder or dusty raw materials, stable conveying and good sealing.

3. Central feeding system: multiple devices are linked and centrally fed through a pipeline network, suitable for large production lines.

• Automation: reduce manual intervention and reduce labor intensity.
• Precise ratio: through PLC control, the error can be less than 0.5%.
• Pollution prevention: closed conveying prevents raw materials from getting wet or mixed with impurities.
• Energy saving: some models consume 30% less energy than traditional pneumatic conveying.

1. Raw material characteristics: particle size, density (such as PP/ABS requires different suction).

2. Conveying distance: horizontal/vertical distance determines power requirements.

3. Capacity matching: select the feeding speed according to the host throughput (such as 500kg/h or higher).

4. Special requirements: explosion-proof design (flammable raw materials), stainless steel material (pharmaceutical grade).

• Regularly clean the filter (vacuum type) or spiral blades (spiral type).
• Check the sealing of the pipeline to prevent air leakage and loss of efficiency.
• Avoid mixing raw materials with different melting points (such as PVC and PET) to prevent blockage.

Plastic screw feeder is becoming a key link in smart factories through intelligent upgrades (such as IoT remote monitoring), significantly improving production efficiency and product consistency. In actual applications, customized solutions need to be combined with process requirements.

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