100% Virgin Solid PTFE Rod (5-330mm) & Precision Machining Services
Manufactured from 100% virgin PTFE compression and extrusion molding, our solid rods offer exceptional purity, wear resistance, and dimensional stability. Paired with expert in-house CNC machining, we deliver custom-toleranced parts for critical sealing and insulation.
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WhatsApp: +86-15222735180
Email: info@chn-rubber.com
100% Virgin PTFE Material & Custom Machining
Leading Virgin PTFE Rod Supplier & Precision Machining Services
As a dedicated ptfe rod supplier under our premium virgin polymer category, Hebei Xinda provides a comprehensive stock of 100% virgin PTFE rods produced through RAM extrusion and hydraulic compression molding. Beyond bulk rod supply, we specialize in machining ptfe rod into high-precision custom components. Whether you require standard length stock rods for automatic Swiss-type lathes or large-diameter molded blanks for heavy-duty sealing rings, our facility ensures rigorous material purity and strict tolerance control.
Virgin PTFE Rod Technical Specifications
| Test Item | Unit | Target Standard |
|---|---|---|
| Density | g/cm³ | 2.10 – 2.30 |
| Tensile Strength | MPa | ≥ 20.0 |
| Ultimate Elongation | % | ≥ 150 |
| Diameter Range | mm | 5mm – 330mm (Extruded & Molded) |
| Length Options | mm | 1000mm, 2000mm (Extruded) / 90mm – 300mm (Molded) |
Extruded vs. Molded PTFE Rod Manufacturing & Supply
To match specific machining setups and structural requirements, we produce PTFE solid rods using two primary manufacturing methods:
1. Paste / RAM Extruded PTFE Rods (Small to Medium Diameters)
Extruded PTFE rods are manufactured through continuous RAM extrusion of fine PTFE resin powders followed by inline sintering. This process creates rods with uniform longitudinal grain structure and excellent straightness, making them the preferred raw stock for automated CNC lathe feeding.
- ● Diameter Range: Small to medium sizes from 5mm up to 100mm.
- ● Standard Lengths: Continuous lengths in 1000mm, 2000mm, or custom continuous bar lengths.
- ● Key Advantage: High dimensional consistency and straightness suited for high-speed automatic Swiss turning.
2. Compression Molded PTFE Rods (Large Diameters)
Molded PTFE rods are produced by cold-pressing virgin PTFE powder under high hydraulic pressure in cylindrical steel dies, followed by controlled thermal oven sintering and stress-relief cooling. This method yields dense, isotropic billet stock engineered for heavy-duty structural parts.
- ● Diameter Range: Heavy-section sizes from 5mm up to 330mm+.
- ● Standard Lengths: Die-restricted lengths ranging from 100mm to 300mm.
- ● Key Advantage: Exceptional material density, stress-relieved internal structure, and zero internal voids for machining large valve seats, gland packings, and wear sleeves.
Precision Machining Capabilities for PTFE Rod Stock
Processing PTFE material presents unique machining challenges due to its low thermal conductivity, high coefficient of thermal expansion, and flexible memory. Our dedicated CNC machining shop utilizes specialized tooling and optimized cutting parameters to convert both extruded and molded PTFE rods into custom finished components:
- ○ High-Precision CNC Turning & Boring: We machine fine-featured components including valve seats, ball valve seals, thread bushings, and guide rings. Extruded bar stock allows continuous bar-feeder operations, while molded billets are Chuck-machined for large-diameter sealing rings.
- ○ Dimensional Tolerance & Thermal Control: Using sharp polished carbide or diamond-tipped tools paired with temperature-controlled workshop environments, we achieve precise machining tolerances down to ±0.01mm (depending on part geometry and wall thickness).
- ○ Surface Finish & Burr Elimination: Because soft fluoropolymers can form micro-burrs during high-speed cutting, our post-machining process incorporates manual and cryogenic deburring to deliver ultra-smooth, clean surfaces ideal for high-purity medical, semiconductor, and laboratory fluid handling parts.
Application Industries & Custom Components
Our machined PTFE rod components serve critical roles across broad industrial sectors:
- ○ Chemical Processing & Valves: Machined ball valve seats, butterfly valve stem packings, chemical pump impellers, and acid-resistant pipe bushings.
- ○ Electrical & Electronics Insulation: High-frequency RF insulating pillars, terminal standoffs, connector plugs, and high-voltage transformer spacers.
- ○ Mechanical & Wear Components: Self-lubricating sleeve bearings, wear rings, dynamic piston seals, and low-friction guide bushings.
- ○ High-Purity & Analytical Equipment: Custom fluid manifolds, chromatography column end-fittings, and non-contaminating laboratory valve plugs.
