Engineering plastics high-precision small-diameter tubing

Engineering plastics high-precision small-diameter tubing is manufactured from high-performance engineering resins, offering superior mechanical strength, heat resistance, chemical resistance, and dimensional stability. It is engineered for high-end applications such as automotive, aerospace, precision instruments, interventional medical devices, and high-temperature fluid handling.

Materials

Optional modifications with glass-fiber reinforcement, antistatic, flame-retardant, or radiation-resistant additives.

POM Flaring & flanging tube

PBT Plastic tube

PA6 Plastic tube

PA66 Flaring & flanging tube

 Material Properties & Technical Specs

 MaterialCore Advantages Key Applications
POMHigh rigidity, extremely low friction, excellent fatigue resistance, and outstanding dimensional stabilityGear transmission sleeves, pneumatic control tubes, precision instrument bearing sheaths
PBTLow water absorption, excellent electrical insulation, and high chemical corrosion resistanceElectronic transformer insulation tubes, connector sheaths, fiber optic protective tubes
PA6High impact resistance, good comprehensive mechanical properties, and excellent wear resistanceWear-resistant protective sleeves, mechanical wire-routing tubes, automotive interior tubes
PA66High strength, high rigidity, superior heat resistance compared to PA6, and higher hardness.High-pressure oil pipe sheaths, mechanical structural support tubes, precision bearing cages
PA12Extremely low moisture absorption (dimensions unaffected by humidity), excellent low-temperature toughness, and outstanding fuel resistanceAutomotive fuel delivery tubes, pneumatic brake lines, high-precision hydraulic conduits

Core Technologies  

01

High-temperature precision extrusion

High-temp-resistant screws and tooling for high-melting-point materials, ensuring melt homogeneity.

02

Low-shrinkage control process

Specialized cooling media and draw-ratio optimization, limiting both axial and radial shrinkage to ≤0.3%.

03

Non-destructive inspection

Integrated laser micrometers and vision inspection systems for 100% full inspection, zero-defect tolerance.

04

Functional co-extrusion technology

Multi-layer structures (e.g., inner lubricious layer, outer wear-resistant layer) or embedded metal braid reinforcement for specialized requirements.

05

Full traceability

Batch-specific process parameter records with MES system compatibility.

Key Product Advantages

High Dimensional Stability

Compared to conventional soft plastics, engineering plastics exhibit lower moisture absorption (especially PBT and PA12), maintaining stable diameters in complex environments to ensure consistent fluid flow rates.

Temperature & Chemical Resistance

Excellent thermal stability, maintaining toughness under long-term operating temperatures (typically -40°C to +120°C, depending on material), while resisting various oils, solvents, and chemicals.

Lightweight & Eco-Friendly

With a density about 1/5 that of metals, they significantly reduce overall product weight and are recyclable.

Customizable Manufacturing

Supports custom sizing, wall thickness and colors, lengths are available upon request.

We provide fully customized production to meet specific customer requirements, covering material selection, color, dimensions, and packaging

Consult immediately