chamfer
It is used to remove sharp edges and improve the feel and safety of assembly; the chamfering size of the sealing surface/mating surface can be controlled according to the drawing requirements.
Polytetrafluoroethylene (PTFE)
PTFE (polytetrafluoroethylene) is characterized by "extremely low friction coefficient, extremely strong chemical corrosion resistance, high temperature resistance, and good electrical insulation," making it a classic material for chemical and sealing applications.
Quote checklist: Upload your 3D model and, when available, a 2D drawing. Identify the required process, material, quantity, critical dimensions, finish, appearance standard, and target delivery date.
Key Material and Manufacturing Parameters
Engineering note: Values below are typical reference ranges. Final manufacturability, tolerances, material condition, surface finish, cost, and lead time depend on the drawing, geometry, quantity, and selected process.
Upload CAD files and mark critical features for an engineering review before production.
| Process | CNC Machining |
|---|---|
| Material name | PTFE |
| Machining tolerance | ±0.2 mm |
| Minimum wall thickness | 1.0mm |
| Service temperature | 300-600℃ |
| Tensile strength | 450-1100MPa |
| Density | 7.7-8.5 g/cm³ |
| Finishing | Chamfering, grinding, bonding, screen printing, laser engraving, surface treatment (plasma/sand blasting) |
| Typical lead time | Related to size, quantity, structural complexity, tolerance requirements and finishing; clear delivery and expedited options will be given after uploading the file |
Finishing
polish
It is used to improve the consistency of local texture and appearance; for functional surfaces, the process route can be selected based on the roughness target.
bonding
Suitable for assembly after component processing; please note the bonding interface, strength requirements and whether medium/temperature resistance is required.
screen printing
Used for logos, scales and other information; it is recommended to provide vector files and location and size instructions.
Laser engraving
Applicable to numbers, QR codes and identification marks; it is recommended to note contrast/depth/area size requirements.
Surface treatment (plasma/sandblasting)
Used to adjust surface condition, improve adhesion or appearance; please note the purpose (such as improving bonding/printing adhesion) and target effect.
Why Choose Polytetrafluoroethylene - PTFE (CNC Machining)
For corrosion-resistant applications
Suitable for parts and components that need to work in corrosive media or complex environments.
High temperature resistance requirements can be assessed
Suitable for parts with temperature resistance requirements; it is recommended to specify the operating temperature range and contact medium when placing an order.
Electrical insulation scenario
Suitable for electrical isolation, insulating structural parts and other applications; can be combined with screen printing/laser engraving for identification.
Small batches and fast delivery
Quickly obtain assembly-ready, verifiable structural parts and end-use parts through CNC machining, which is suitable for prototyping and small batch production.
Recommended Applications
- Appearance prototype: Need to quickly process and verify shape, assembly and structure
- Corrosion resistant: Parts exposed to corrosive media or humid environment for a long time
- High temperature resistance: There is a higher temperature working condition (please specify the temperature range and duration)
- electrical insulation: Insulating spacers, insulating supports, etc.
It is not recommended to use it directly (it is recommended to change materials/processes)
- Requires a mirror-like appearance: It is recommended to evaluate materials/process routes that are more suitable for high-gloss appearance
- Ultra-thin, large flat surface with high strength requirements: It is recommended to jointly optimize the structure/materials
- Strong impact, high load and long-term load-bearing capacity: It is recommended to evaluate higher strength material systems
- Tight fit tolerances for batch consistency: It is recommended to provide 2D tolerances and inspection standards, and make tooling/inspection tool plans if necessary.
Design and DFM Guidelines
- Key dimensions and benchmarks: If sealing surfaces, mating surfaces, and positioning holes are involved, please mark the tolerances and datum systems on the 2D drawings to facilitate quick assessment of manufacturability and quote.
- Thin-walled and long structures: Thin-walled/slender parts rely more on clamping and processing strategies; it is recommended to keep the wall thickness uniform, add transition fillets, and reserve clamping/positioning surfaces.
- Holes and slots: Deep holes and narrow grooves will significantly affect processing efficiency and risks; it is recommended to improve tool accessibility and avoid extreme aspect ratios.
- Bonding/screen printing/laser engraving: If bonding or printing is required, please reserve flat areas and positioning features in the model, and note the target effect and media/temperature resistance requirements.
- Surface treatment (plasma/sand blasting): Please indicate the purpose (improving adhesion/changing surface condition/unifying appearance), and we will choose a more appropriate treatment solution based on the goal.