Twin Screw Feeder

A Twin Screw Feeder is an essential component in PVC extrusion machines, ensuring precise and consistent feeding of raw materials into the extruder. It plays a critical role in maintaining the quality and efficiency of the extrusion process, especially for PVC, which requires accurate material handling to achieve optimal results

What is a Twin Screw Feeder?

A twin screw feeder consists of two parallel screws that rotate in the same or opposite directions to transport and meter raw materials (e.g., PVC resin, additives, and fillers) into the extruder. It is designed to handle a wide range of materials, from powders to granules, with high precision.

Key Features

• • Precision Feeding: Ensures accurate and consistent material flow, critical for maintaining product quality.
  • Versatility: Can handle various material forms, including powders, granules, and pellets.
  • Uniform Mixing: Promotes even distribution of additives and fillers in the PVC formulation.
  • Adjustable Speed: Allows operators to control the feed rate based on production requirements.
  • Compact Design: Saves space and integrates easily with extrusion lines.
  • Durability: Made from high-quality materials to withstand the abrasive nature of PVC compounds.

Applications of Twin Screw Volumetric Feeders

• • Window Profile Production: Ensures consistent feeding of PVC resin, stabilizers, and impact modifiers.
  • Pipe Extrusion: Handles PVC compounds with fillers and additives for uniform pipe quality.
  • Sheet and Film Extrusion: Provides precise feeding for thin-gauge PVC products.
  • Cable and Wire Coating: Ensures accurate dosing of PVC compounds for insulation and sheathing.

How Twin Screw Feeders Work

1. Material Hopper: Raw materials are loaded into the hopper.
2. Screw Mechanism: The twin screws rotate to transport materials from the hopper to the extruder.
3. Metering Zone: The screws control the feed rate, ensuring consistent material flow.
4. Discharge: Materials are discharged into the extruder for processing.

Selection Criteria for Twin Screw Feeders

1. Material Type: Choose a feeder designed for the specific form of PVC material (powder, granules, etc.).
2. Feed Rate: Ensure the feeder can handle the required production capacity.
3. Precision: Opt for feeders with high accuracy for critical applications like window profiles.
4. Durability: Select feeders made from abrasion-resistant materials for long-term use.
5. Integration: Ensure compatibility with your existing extrusion line.