SJSZ35 Small Conical Double-Screw Extruder has completed production

This high-end 35-cone twin-screw extruder, custom-designed for clients, is a precision plastic extrusion system developed by Yongte to meet premium market demands. Having completed factory assembly and commissioning, its overall performance ranks among the industry leaders.

✔ Core Structure and Key Configurations

1. Host Driver and Transmission System

· Main drive unit: Combines a high-torque servo motor with a high-performance reduction gearbox, delivering substantial output torque and smooth operation. It achieves high torque at low speeds, perfectly meeting the mild plasticizing requirements of heat-sensitive materials such as PVC.

· Feeding System: Equipped with a high-precision forced feeding device and dual feeding motors, it ensures precise and stable powder conveyance, prevents bridging and feeding fluctuations, and guarantees continuous extrusion operation.

· Temperature Control and Vacuum System: The barrel features a segmented heating and cooling structure equipped with an independent temperature control module; a dual-path vacuum exhaust system is installed below, enabling efficient removal of volatile components and moisture from the material, thereby enhancing product density and surface quality.

2. Core Process Components

· Conical twin-screw: Featuring a classic counter-rotating conical screw design, it boasts a large diameter in the feeding section for enhanced material conveying capacity, while the discharge section narrows to establish stable extrusion pressure with mild shear conditions. This configuration is particularly suitable for direct powder processing of heat-sensitive materials such as PVC, ensuring high homogeneity in plasticizing and mixing.

· Material of the barrel and screw: The screw is made of high-strength alloy steel and subjected to high-temperature quenching and heat treatment, ensuring wear and corrosion resistance with a long service life; the barrel is constructed from alloy material, offering excellent wear and corrosion resistance and suitability for processing various formulations.

3. Control and Auxiliary Systems

· Electrical Control System: The entire unit employs PLC + touchscreen control, integrating real-time monitoring of multiple parameters such as temperature, rotational speed, and pressure. It supports parameter storage and one-click retrieval, offering user-friendly operation that meets the stringent requirements of high-end customers for equipment automation and stability.

· Auxiliary Unit: Equipped with an independent hydraulic adjustment mechanism, enabling comprehensive lifting functionality of the entire machine body for easier equipment maintenance and mold replacement. The entire unit adopts a modular design with a compact structure, facilitating transportation and on-site installation.

✨ Device Features and Advantages

1. High adaptability: The conical screw design is inherently optimized for PVC powder processing, enabling direct one-step formation from powder to finished product without granulation, significantly reducing production energy consumption and costs.

2. High stability: A high-torque transmission system combined with precise feeding and a reliable temperature-controlled vacuum system ensures a stable extrusion process, delivering high dimensional accuracy in the final products and meeting the stringent consistency requirements of the premium market.

3. Easy Maintenance: The modular structural design and standardized component selection reduce the complexity and cost of equipment maintenance, while meeting high-end customers' requirements for equipment reliability and low failure rates.

4. Environmental friendliness and low noise: The entire unit employs a low-noise motor and precision transmission components, resulting in minimal operational noise; the vacuum exhaust system effectively reduces exhaust emissions, meeting environmental production requirements.

Typical application scenarios

This SJSZ32 conical double screw extruder equipment is widely applicable for extrusion molding of PVC pipes, profiles, sheets, and custom-shaped door/window profiles, as well as for the modification and extrusion processing of other heat-sensitive plastics. It is an ideal solution for producing small-to-medium batch sizes of high-precision plastic products.