China Suppliers Factory for Engineering Plastics Modification Compounding Machines
Performance & Features by Line Configuration
CJWS75 Twin-Screw Extruder
CJWS75
450 kW (AC frequency motor), maximum screw speed up to 900 RPM, energy-saving and high efficiency.
1–2 T/h
Automatic high-precision metering and feeding for multiple materials, ensuring accurate formulation control.
Automatic material weighing to ensure consistent and stable product quality.
The barrel is equipped with integral tungsten carbide alloy liners, extending service life and reducing maintenance costs.
Screw elements made of powder metallurgy (PM), featuring high wear resistance and mechanical strength to ensure long-term stable operation.
The side feeding design allows glass fibers to be introduced into the main material flow in a controlled and sectional manner, preventing fiber agglomeration and improving dispersion uniformity in the matrix.
Low-shear feeding helps preserve fiber length (especially long fibers of 6–25 mm), reduces fiber damage, and enhances final product density through efficient high-vacuum degassing.
The buffer hopper is equipped with an agitator to prevent material bridging and improve feeding efficiency.
Equipped with small bag and big bag feeding stations, quick-opening strand die head, cooling water tank, air knife, gantry pelletizer, lifting conveyor, finished product homogenization silo, and automatic bagging system to improve overall production efficiency.
Industries & Applications
Automotive industry:
Lightweight and energy saving: Engineering plastics can reduce the weight of the vehicle body and reduce fuel consumption.
- Nylon (PA): used to manufacture fuel lines, intake manifolds, gears, etc.
- Polycarbonate (PC): headlight covers, instrument panels, window glass (high light transmittance, impact resistance).
- Polyoxymethylene (POM): door locks, seat belt components (wear-resistant, low friction).
- Polyphenylene sulfide (PPS): high-temperature resistant sensor housing, ignition components.
Electrical and electronic industry:
Insulation and precision components: high temperature resistance, flame retardancy, and dimensional stability.
- Polybutylene terephthalate (PBT): connectors, relay housings.
- Liquid crystal polymer (LCP): miniaturized electronic components (such as mobile phone antennas, high-frequency connectors).
- Polyimide (PI): flexible circuit boards, high-temperature insulation films.
- Polyetheretherketone (PEEK): chip carriers, corrosion-resistant cable sheaths.
Mechanical industry:
Wear-resistant and high-strength parts:
- Polyoxymethylene (POM): gears, bearings, sliders (self-lubricating, low wear).
- Polyetheretherketone (PEEK): chemical pumps and valves, seals (corrosion-resistant, high-pressure resistant).
- Ultra-high molecular weight polyethylene (UHMWPE): conveyor belts, guide rails (wear-resistant, impact-resistant).
Aerospace:
Adaptability to extreme environments:
- Polyphenylene sulfide (PPS): aircraft interiors (flame retardant, low smoke).
- Polyetherimide (PEI): cabin panels, radomes (high strength, radiation-resistant).
- Polytetrafluoroethylene (PTFE): hydraulic system seals (low temperature resistant, corrosion resistant).
Medical devices:
Biocompatibility and sterilization:
- Polyetheretherketone (PEEK): orthopedic implants, dental instruments (metal alternative).
- Polytetrafluoroethylene (PTFE): artificial blood vessels, catheters (anticoagulation).
- Polymethyl methacrylate (PMMA): artificial lenses, bone cement.
Energy and environmental protection:
Corrosion resistance and weather resistance:
- Polyaniline (PANI): conductive material for solar cells.
- Polyvinylidene fluoride (PVDF): lithium battery diaphragm, sewage treatment filter membrane.
- Polypropylene (PP): fuel cell bipolar plate (lightweight, acid-resistant).
Emerging application areas:
- 3D printing: PEEK, PA, etc. are used for customized complex structural parts.
- 5G communication: LCP materials are used for antennas with high frequency and high speed transmission.
- Degradable engineering plastics: such as high-performance applications after modification of polylactic acid (PLA).
Frequently Asked Questions
What is the production capacity of the CJWS75 Twin-Screw Extruder?
The CJWS75 Twin-Screw Extruder features a production output capacity of 1–2 T/h, making it highly efficient for engineering plastics modification compounding operations.
How does the side feeder protect glass fiber integrity?
The side feeder design introduces glass fibers into the main melt flow in a controlled, sectional manner. Its low-shear feeding preserves fiber length (6–25 mm) and reduces fiber damage, while high-vacuum degassing enhances final product density.
What wear-resistant materials are used in the CJWS75 barrel and screw?
The barrel is equipped with integral tungsten carbide alloy liners to extend service life. The high-performance screw elements are manufactured from powder metallurgy (PM) for superior wear resistance and mechanical strength.
Which engineering plastics are commonly used in the automotive sector?
Key plastics include Nylon (PA) for fuel lines and manifolds, Polycarbonate (PC) for headlight covers and panels, Polyoxymethylene (POM) for wear-resistant components, and Polyphenylene sulfide (PPS) for high-temperature housings.
How does the loss-in-weight feeding system ensure formulation accuracy?
The loss-in-weight system uses automatic high-precision weighing and metering for multiple raw materials. This ensures accurate formulation control, leading to consistent and stable product quality.