Extruder Mainframe & Auxiliary Cutter for Plastic Granulation

The core processing unit of our advanced granule line. Engineered with a special screw structure and precise temperature control to handle unstable materials like EVA, TPR, and color master batch, ensuring perfectly smooth and even granules.

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About the Extruder & Cutter System

In any plastic granulation line, the Extruder Mainframe and the Auxiliary Cutter are the heart of the operation. The extruder melts, mixes, and pushes the material forward, while the auxiliary cutter determines the final size and shape of the granules.

This system is specifically designed for granulating and sampling EVA, TPR, modified materials, and color master batch. It can also be used in small production batches when assorted with a specification kneader and mixing mill, drastically reducing the large energy consumption typical of high-power units.

Solving the Challenge of Unstable Materials: Materials like EVA and TPR possess unstable extrusion particularities. To combat this, we have implemented special designs into the structure of the extruder screw. Combined with a highly sensitive temperature control system, the mainframe can accurately detect and control the process temperature. This effectively avoids the common issues of material foaming and color differences during kneading. The result is a final product with smooth, even, and visually appealing granules.

Why Choose Our Extruder & Cutter

Special Screw Design

The screw structure is specially engineered to handle the unstable extrusion properties of EVA and TPR, ensuring a continuous and stable material flow without jamming or degradation.

Prevents Foaming & Color Differences

Equipped with a highly sensitive temperature control system. By keeping the temperature strictly within the optimal range, it prevents the material from foaming and eliminates color inconsistencies.

Precision Cutting

The auxiliary cutter works in perfect sync with the mainframe extrusion speed. This guarantees that the finally finished granules are smooth, uniform in size, and free from defects.

Low Energy & Compact Structure

Designed to consume less energy than traditional high-power modeling units. Its compact structure makes it highly stable, efficient, and easy to integrate into your existing factory floor.

Where It Fits in the Production Line

The Extruder Mainframe and Auxiliary Cutter are the central processing stage of the complete granule line. The workflow operates as follows:

Kneader → Extruder Mainframe → Auxiliary Cutter → Whirlwind Cooler → Cooling Conveyer → Finished Products

As the highlighted steps show, the material is fed from the kneader into the Extruder Mainframe. Once extruded, it immediately passes through the Auxiliary Cutter, which cuts the material into uniform pellets before sending it to the cooling stage.

Applications

EVA Granule Production

Ideal for processing Ethylene-Vinyl Acetate, widely used in the footwear industry for shoe soles and foams.

TPR & Modified Materials

Handles Thermoplastic Rubber and other modified polymers that are highly sensitive to temperature fluctuations during extrusion.

Color Master Batch

Ensures thorough mixing and uniform color distribution, preventing streaks and uneven coloration in the final pellets.

Laboratory & Sampling

Highly suitable for small production runs and sampling, allowing you to test new material formulations with minimal raw material waste.

Frequently Asked Questions

How does the extruder prevent foaming and color differences?

Extruding materials like EVA and TPR can be unstable. We have designed a special structure for the screw, combined with a highly sensitive temperature control system. This allows the mainframe to detect and adjust temperature accurately in real-time, preventing the material from overheating, which is the primary cause of foaming and color degradation.

What is the role of the auxiliary cutter?

The auxiliary cutter is responsible for slicing the extruded plastic strands into uniform granules. It works in sync with the extrusion speed to ensure the pellets are consistent in size and smooth in appearance.

Can this system be used for small-batch sampling?

Yes. When assorted with a specification kneader and mixing mill, it is highly efficient for small production runs. It saves the energy that would be wasted by running massive high-power units just for sampling.

Is the machine difficult to maintain?

Routine maintenance is straightforward. It primarily involves regular cleaning of the screw and barrel to prevent material buildup, and checking the heater bands and temperature sensors to ensure accurate readings for consistent quality.