China PA6 Board Manufacturers & Factory

Polyamide 6 is inherently hygroscopic, absorbing roughly 2.5% to 3.0% moisture under standard ambient conditions, and up to 8% to 9% at saturation. This absorption leads to volumetric expansion (roughly 0.2% to 0.3% dimensional growth per 1% of absorbed moisture). When preparing tight-tolerance parts (±0.05mm), our team advises dry machining followed by conditioning the stock in operating humidity, or alternatively selecting POM (acetal) if parts are exposed to continuous water contact.

Extruded and cast slabs run through secondary thermal ovens where temperatures are slowly raised to between 150°C and 160°C in an inert or oil bath environment, soaked for a minimum of 1 hour per 10mm of material thickness, and brought down gradually over a 24- to 48-hour cycle. This removes crystallization stresses and prevents bowing or distortion during face milling and deep drilling.

Use high-speed steel (HSS) or fine-grain tungsten carbide cutters with sharp cutting edges and polished chip-flutes to prevent plastic adhesion. Maintain high rake angles (15° - 25°) and large clearance angles (10° - 15°). Keep feed rates high and cutting speeds around 250 - 500 m/min, utilizing compressed cold air or water-soluble lubricants to avoid heat buildup and local softening.

Yes. We offer custom precision beam-saw panel cutting down to your requested rectangular blanks with minimal cutting allowances (±0.5mm). Additionally, our factory-direct CNC machining division operates 3-axis, 4-axis, and 5-axis routers and turning centers, converting PA6 stock directly into bushings, wear pads, and helical gears using your 2D/3D CAD models (DWG, DXF, STEP, or IGES).

Standard natural ivory and dark blue sheets are kept in stock with no strict minimum order volume. Custom modified colors (such as safety yellow, signal red, or green) or compound additions (like 30% glass fiber, molybdenum, or PTFE filling) carry an MOQ between 500kg and 1,000kg depending on board thickness, with factory turnaround times typically within 10 to 18 business days.