Bushings and bearings
CNC turning and milling with material and manufacturing support from prototype through repeat production.
PCTFE rod Manufacturer · Direct Factory Supply
PCTFE rod
JIAFUXIN manufactures and supplies PCTFE rod for industrial buyers that require low gas permeability, dimensional stability and cryogenic performance. Standard sizes, custom dimensions and drawing-based factory processing are available.
Engineering overview
Stock Shapes Ready for Precision Machining
Select PCTFE rod by diameter, straightness, concentricity, material grade, filler and finished-part tolerance. Final suitability depends on the complete operating environment and required service life.
Valve seats and plugs
Valve and pump parts with material and manufacturing support from prototype through repeat production.
Electrical insulators
Bearings and guides with material and manufacturing support from prototype through repeat production.
Turned OEM parts
OEM drawing parts with material and manufacturing support from prototype through repeat production.
Material property reference
Typical Properties of PCTFE Rod
Use grade-specific certificates and application testing when properties are critical to cryogenic, pressure, gas-barrier, or electrical performance.
| Property | Typical Value (PCTFE Rod) | Notes |
|---|---|---|
| Material Name | PCTFE (Polychlorotrifluoroethylene) | Also known by legacy or trade references such as Kel-F / Neoflon |
| Operating Temperature | -240°C to +150°C | Excellent cryogenic performance |
| Density | 2.10–2.20 g/cm³ | Higher than PTFE for improved rigidity |
| Tensile Strength | 38–52 MPa | Stable strength at low temperatures |
| Compressive Strength | 80–110 MPa | Suitable for high-pressure sealing applications |
| Flexural Modulus | 1,700–2,200 MPa | High stiffness |
| Creep Resistance | Excellent | Better dimensional stability than PTFE |
| Water Absorption | < 0.01% | Extremely low moisture uptake |
| Gas Permeability | Very Low | Suitable for vacuum and gas systems |
| Chemical Resistance | Excellent | Resists many acids, solvents, and oxidizers |
| Dielectric Strength | 16–24 kV/mm | Reliable electrical-insulation properties |
| Flammability | Non-flammable / V-0 | Self-extinguishing behavior |
| Machinability | Good | Recommended for CNC precision parts |
Values are typical reference data and may vary by resin grade, molding process, specimen condition, and test method. Trade names belong to their respective owners.
Selection guide
Information Required for Material Selection
Share these details to shorten quotation time and reduce specification risk.
01
Operating temperature
Minimum, maximum and continuous temperature under load.
02
Chemical environment
Media, concentration, pressure and exposure duration.
03
Mechanical demand
Load, movement, wear, creep and dimensional stability.
04
Manufacturing details
Dimensions, tolerance, surface, quantity and documentation.
Technical overview
PCTFE rod Specifications
| Material | Polychlorotrifluoroethylene |
|---|---|
| Available grades | Compression-molded, extruded and application-specific resin grades |
| Manufacturing process | Ram extrusion, paste extrusion, compression molding and sintering |
| Supply formats | Standard and custom diameters with machining allowance |
| Typical temperature capability | Typically -240°C to +150°C; grade dependent |
| Typical density | Approximately 2.10–2.20 g/cm³ |
| Custom processing | Cut blanks, CNC turning, drilling, threading, grooving and inspection |
Values are general reference information, not a material certificate. Grade, process, dimensions and test method affect actual results.
Performance and design
Why Engineers Specify PCTFE rod
Not selected for the same high-temperature range as PTFE.
Material performance
Low gas permeability, dimensional stability and cryogenic performance.
Grade options
Compression-molded, extruded and application-specific resin grades.
Selection criteria
Diameter, straightness, concentricity, material grade, filler and finished-part tolerance.
Secondary processing
Cut blanks, CNC turning, drilling, threading, grooving and inspection.
Frequently asked questions
PCTFE rod FAQ
What should buyers verify when choosing a PCTFE rod manufacturer?
Confirm the resin or compound, manufacturing route, dimensional tolerance, inspection method and batch traceability. The drawing and service conditions should be reviewed before price becomes the deciding factor.
What information should I send to a PCTFE rod supplier?
Send the required grade, dimensions, tolerance, quantity, operating temperature, chemical media, mechanical load, documentation and delivery destination. Photos or drawings help prevent quotation assumptions.
Can the JIAFUXIN PCTFE rod factory make custom sizes?
Custom dimensions and secondary processing can be reviewed from a drawing, sample or application specification. Feasibility depends on the material, production method, tolerance and order volume.
Are PCTFE rod rod and bar the same product?
Rod and bar are often used interchangeably for round stock. The purchase specification should define diameter, length, straightness, ovality, grade and machining allowance.
What is the difference between PCTFE and PTFE?
PCTFE offers lower gas permeability and better dimensional stability, especially in cryogenic service. PTFE usually provides a higher continuous temperature range and lower friction. See the PCTFE guide.
Why is PCTFE used for cryogenic seals?
PCTFE combines low gas transmission, low moisture absorption and dimensional stability at very low temperatures, which helps in valves and gas-handling systems.
How do I select the right PCTFE rod for my application?
Select PCTFE rod by diameter, straightness, concentricity, material grade, filler and finished-part tolerance. Final suitability depends on the complete operating environment and required service life.
How much machining allowance is needed on PCTFE rod?
Allowance depends on rod diameter, straightness, ovality, finished tolerance and whether stress relief is required. Send the finished drawing so stock size can be selected correctly.
Which PCTFE rod grade is best for wear or load?
Compare unfilled and reinforced grades against load, speed, counterface, lubrication, temperature and chemical media. A stronger grade is not automatically the best option for every bearing or seal.
Talk to an engineer
Request a PCTFE rod Quote
Send the material, dimensions, quantity, working conditions and drawings. JIAFUXIN will recommend a practical manufacturing route.