As a dedicated 60% copper PTFE tube supplier, we understand that wear-resistant filled PTFE tubing must be matched precisely to the operating conditions of hydraulic cylinders, pumps, and industrial machinery. Our manufacturing program includes not only standard copper-filled tubes but also specialized bronze-filled alternatives that address different load and speed requirements. For engineers facing extreme radial loads and dry-start conditions, the 60% bronze filled PTFE tube for extreme load provides a dense, self-lubricating bearing surface with superior deformation resistance. Where maximum filler loading is needed to minimize creep and thermal expansion, our high content bronze PTFE tubing is manufactured with tightly controlled particle size distribution and uniform dispersion. For applications requiring the highest compressive strength in a machinable tube stock, the max load bronze filled PTFE tube is recommended as a drop-in replacement for conventional bearing bronze. In addition, our heavy duty bronze PTFE tube for hydraulic cylinder is produced to meet the exacting bore tolerances and surface finish requirements of modern hydraulic sealing systems. These linked product families demonstrate our full-range filler technology; however, the 60% copper PTFE tube remains our core product for applications requiring both high thermal conductivity and reliable wear performance.
The 60% Copper PTFE Tube is produced from virgin PTFE resin compounded with 60% by weight copper powder. The copper particles are uniformly dispersed through the PTFE matrix before compression molding and sintering, which ensures consistent mechanical and thermal properties in every production batch. Copper-filled PTFE is particularly suitable for hydraulic cylinder guide rings, wear bands, bearing bushes, thrust washers, and custom sealing components. The high copper content increases thermal conductivity from approximately 0.25 W/m·K for unfilled PTFE to 0.45–0.65 W/m·K, allowing frictional heat to dissipate more efficiently. It also reduces linear thermal expansion and improves compressive strength, making the material more stable under heavy side loads and reducing cold flow over time.
| Parameter | Specification | Test Method / Standard |
|---|---|---|
| Copper powder content | 60% ± 2% by weight | Internal QC / batch certificate |
| PTFE matrix | Virgin PTFE, no recycled resin | Material certificate |
| Density | 3.2–3.6 g/cm³ | ASTM D792 |
| Hardness | 60–68 Shore D | ASTM D2240 |
| Tensile strength | 18–25 MPa | ASTM D638 |
| Elongation at break | 80–150% | ASTM D638 |
| Compressive strength at 1% strain | 35–45 MPa | ASTM D695 |
| Deformation under load (25 MPa, 24 h, 23°C) | ≤ 5% | ASTM D621 |
| Wear rate | ≤ 8 × 10⁻⁶ mm³/N·m | Pin-on-disc, dry |
| Thermal conductivity | 0.45–0.65 W/m·K | ASTM E1530 |
| Service temperature range | -200°C to +260°C | Continuous use |
| Inside diameter tolerance | ±0.05 mm up to 150 mm OD | Micrometer |
| Concentricity | ≤ 0.10 mm TIR | Dial indicator |
| Surface finish | Ra ≤ 1.6 μm | Profilometer |
Standard size range covers inside diameters from 6 mm to 300 mm and wall thicknesses from 1.5 mm to 25 mm. Non-standard profiles, close-tolerance bushing stock, and machined components are available from our in-house turning and milling center. Each production batch is traceable with a material certificate and dimensional inspection report, providing repeatable performance in aftermarket and OEM hydraulic applications.
