The Vespel SP-211 Rods from Ideal Plastic factory are high‑performance PI profiles filled with 15% graphite and 10% PTFE, designed for high‑load, medium‑temperature sliding components. This composite material delivers low friction, self‑lubricating performance, wide‑range temperature tolerance and excellent radiation resistance, widely adopted in semiconductor, aerospace and new‑energy equipment.
1) Original factory material test reports
2) Secondary CNC machining is supported
3) MOQ starting at 1 piece
Ideal Plastic factory's Vespel SP-211 Rods are composite‑modified engineering plastic bar modified by blending graphite and PTFE fillers based on pure polyimide substrate. Compared with unfilled PI, the modified material achieves greatly improved self‑lubricity and wear resistance, solving the risk of friction‑caused failure of ordinary plastics under continuous heavy‑load operation.
Unlike pure PTFE with poor mechanical rigidity, this PI composite maintains high structural strength while retaining low‑friction properties. It can operate stably under cryogenic conditions as well as long‑term high‑temperature working environments. For industrial projects requiring oil‑free lubrication, radiation resistance and dimensional stability, SP‑211 polyimide rod is the preferred semi‑finished blank for machined finished parts.
Ideal Plastic supplies solid SP‑211 polyimide rods in standard 1000 mm length. Besides standard stock blanks, we support custom‑size production and subsequent precision machining, helping customers skip intermediate outsourcing procedures and obtain ready‑to‑install components directly.
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Product name |
Polyimide SP-211 rod |
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Material |
Polyimide with 15% graphite and 10% PTFE filler |
|
Color |
black |
|
Dia |
5-150mm |
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Length |
1000mm |
|
Tolerance |
±0.02mm |
|
sample |
Negotiation |
|
Minimum order quantity |
1 piece |
|
Certificates |
ISO9001:2008, REACH, ROHS |
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Additional services |
Secondary processing can be provided. |
| Comparison Item | SP‑211 Filled PI | Unfilled Pure PI | PEEK | Pure PTFE |
|---|---|---|---|---|
| Filler Composition | 15% graphite +10% PTFE | No filler | Unfilled / carbon‑fiber filled | No filler |
| Self‑lubricating Capacity | ★★★★★ | ★★☆☆☆ | ★★★☆☆ | ★★★★★ |
| Continuous Operating Temperature | ‑200~300℃ | ‑200~310℃ | ‑40~250℃ | ‑200~260℃ |
| Mechanical Rigidity | High | Very high | Very high | Low, prone to creep |
| Radiation Resistance | Excellent | Excellent | Fair | Good |
| PV Limit Value | Extremely high | Medium | Relatively high | Low |
| Vacuum Outgassing | Moderate | Low | Low | High |
| Key Drawbacks | Particle shedding upon long‑term wear | High friction coefficient, unsuitable for dry friction | Average self‑lubrication at high temperature | Prone to cold flow creep, poor load‑bearing capacity |
| Best‑Fit Scenarios | Heavy‑load oil‑free sliding parts, aerospace, semiconductor | High‑strength structural parts for non‑friction applications | Wear‑resistant structural parts, food & medical industry | Low‑load sealing gaskets |
Registered in Hong Kong in 2011, with factory and R&D center located in Huangpu District, Guangzhou, China. A high‑tech enterprise focusing on R&D, production and custom machining of special engineering plastics.
Specialise in semi‑finished sheets, rods and tubes of PEEK, PAI, PI, PPS, PPSU, PEI, as well as injection‑molded and machined finished components. Provide one‑stop solutions covering R&D, design and manufacturing for multiple industries.
Over 100‑member team composed of R&D specialists and front‑line production technicians.
Equipped with profile production lines, various CNC machine tools, 4‑axis & 5‑axis machining centers, engraving machines, laser‑cutting equipment and Class 100,000 dust‑free injection‑molding workshop, complete with full‑set professional testing instruments.
Own multiple utility‑model patents, certified with ISO9001:2008. Products meet RoHS, REACH environmental standards.
Serve clients across China, Europe, United States, Middle East, Japan, South Korea and Southeast Asia.
Source premium raw materials globally. Implement full‑process quality control including incoming raw‑material inspection, in‑process monitoring and multi‑round finished‑product testing. Continuously optimise processes to deliver cost‑effective high‑performance plastic products.
More than 14 years of industry experience. Earn wide recognition from global customers with professional teams, advanced equipment, strict quality concepts and responsive customer service. Factory visits and technical communications are warmly welcomed.
PI raw materials sourced from DuPont; original manufacturer material test reports available for each production batch
Incoming raw‑material inspection, in‑process spot‑checks and pre‑shipment finished‑product testing supported by professional laboratory equipment
1‑piece MOQ for rod blanks to satisfy prototype testing and mass‑volume serial procurement
Drawing‑driven CNC machining, reverse‑engineering service and custom‑packaging options available
Products shipped worldwide; support DHL, FedEx, sea freight and customer‑appointed forwarders
Non‑disclosure agreements available to secure your drawing and project data
ISO9001:2008, RoHS, REACH compliance documents provided for your project audit
Please reach our technical‑support team for any problems encountered during application after receipt of goods. Our specialists will deliver timely and professional solutions.
