Material: PTFE (Polytetrafluoroethylene) + Copper Powder (Cu)
Density: 2.5 – 3.0 g/cm³ (increases with copper content)
Tensile Strength: 20 – 30 MPa
Elongation at Break: 100% – 300%
Water Absorption: < 0.01%
Contraction Percentage: 1.5% – 3.5%
Working Temperature: -200°C to +250°C (short-term up to +280°C)
Work Pressure: Suitable for low-speed, medium-to-high pressure applications (depends on design)
Not Suitable For: High-insulation electrical environments
Trademark: Chunhuan
Origin: China
The PTFE Copper Powder Filled Rod is a high-performance composite material that combines the superior chemical inertness and low friction of PTFE with the exceptional thermal conductivity and wear resistance of copper. Manufactured by Chunhuan, this engineering rod is designed to deliver long-lasting performance under medium to high pressure and oil-free operating environments where traditional lubricants are not feasible.
It serves as a premium choice for producing bearings, bushings, valve seals, wear pads, and guide rings used across industrial, automotive, and chemical processing systems.
Enhanced Wear Resistance
The addition of copper powder greatly reduces wear compared to pure PTFE, extending the lifespan of moving components and minimizing maintenance costs.
Superior Thermal Conductivity
Copper creates an internal heat-conductive network, effectively dissipating frictional heat and preventing deformation or failure under high-speed or continuous operation.
Excellent Self-Lubrication and Low Friction
Retains PTFE’s ultra-low friction coefficient, enabling smooth motion even under dry or oil-free conditions — ideal for food, pharmaceutical, or cleanroom environments.
Improved Creep Resistance and Dimensional Stability
Copper reinforcement enhances rigidity and prevents cold flow, ensuring stable dimensions and sealing performance under long-term load or pressure.
Industrial Bearings & Seals: Compressor guide rings, hydraulic cylinder bushings, and pump wear components.
Automotive Engineering: Universal joint bushings, suspension system bearings, and gearbox sealing rings.
Food & Pharmaceutical Machinery: Oil-free wear strips, sliders, and conveyor components for contamination-free operation.
Chemical Processing Industry: Valve seats, pump parts, and anti-corrosive wear-resistant fittings in aggressive media.
Aerospace & Semiconductor Equipment: Precision, self-lubricating components for vacuum and cleanroom applications.
Premium Raw Materials: Made from top-quality PTFE resin and high-purity electrolytic copper powder.
Uniform Dispersion Technology: Proprietary blending ensures consistent copper distribution for even performance.
Density Control: Precision molding maintains stable density and predictable mechanical behavior.
Multiple Specifications: Available in various diameters, lengths, and copper content ratios (20%, 30%, 40%).
Technical Support: Engineering guidance available for material selection and processing optimization.
The PTFE Copper Powder Filled Rod is a specialized solution engineered for wear-intensive, thermally demanding, and lubricant-free applications. Combining PTFE’s low friction and chemical stability with copper’s mechanical reinforcement, it delivers superior reliability, durability, and thermal efficiency. Perfect for bearings, seals, and precision components operating in tough industrial or clean environments.
