Custom precision CNC machining nylon/PA parts in China
We manufacture custom CNC machining nylon/PA parts in China for global buyers across automotive, industrial machinery, consumer electronics and more. From prototype to production runs, every nylon and polyamide component is machined to your drawing with tight tolerances, smooth surface finish and consistent batch quality.
Why Nylon / PA Is Chosen for CNC Machining
Nylon (polyamide, PA) is one of the most widely machined engineering thermoplastics. Its balanced mechanical, tribological and chemical properties make it a cost-effective alternative to metal in countless structural and moving components.
High Mechanical Strength
PA6 and PA66 deliver excellent tensile strength, stiffness and impact resistance, suitable for load-bearing gears, bushings and structural brackets.
Low Friction & Self-Lubricating
Nylon naturally offers a low coefficient of friction. Oil-filled or MoS2-modified grades further reduce wear in sliding and rotating applications without external lubrication.
Chemical & Corrosion Resistance
PA resists oils, greases, fuels and many solvents. It does not rust, making it ideal for components exposed to harsh industrial or outdoor environments.
Lightweight vs. Metal
With a density around 1.1–1.2 g/cm³, nylon parts weigh roughly one-seventh of steel. This cuts inertia, energy consumption and shipping cost in moving assemblies.
Noise & Vibration Damping
Nylon absorbs vibration and reduces operating noise compared with metal-on-metal contact, a valued property in gears, rollers and textile machinery components.
Cost-Effective Production
Raw PA stock is affordable, machines quickly with standard tooling and requires no secondary corrosion treatment. This keeps per-part cost low for both prototypes and volume runs.
Nylon / PA Grades Under Different National Standards
Polyamide materials are designated differently under ISO, ASTM and other national standards. The table below maps the common nylon families to their standard designations and representative commercial brand grades, so you can specify the right material for your market.
| Material Family | ISO 1874 Designation | ASTM D4066 Type | Representative Commercial Grades |
|---|---|---|---|
| Polyamide 6 (Nylon 6) | PA6 | Type II | BASF Ultramid B3S DuPont Zytel 7301 DSM Akulon F223-D |
| Polyamide 66 (Nylon 66) | PA66 | Type I | DuPont Zytel 101L BASF Ultramid A3K DSM Akulon S223-D |
| Polyamide 12 (Nylon 12) | PA12 | Not classified | EMS Grilamid L25W40X Arkema Rilsan AESNO |
| Polyamide 46 (Nylon 46) | PA46 | Not classified | DSM Stanyl TW341 |
| Monomer Cast Nylon (MC Nylon) | Not covered | Not covered | MC Nylon natural MC Nylon blue Oil-filled MC Nylon |
Reinforced & Filled Grades
- PA6-GF15 / PA6-GF30 — glass fiber reinforced, higher strength and rigidity
- PA66-GF30 / PA66-GF35 — glass fiber reinforced PA66 for high-load parts
- PA6-MD40 — mineral filled, improved dimensional stability and surface finish
- PA6-CF — carbon fiber reinforced, electrostatically dissipative and ultra-stiff
Functional Modified Grades
- PA6-MoS2 — molybdenum disulfide filled, enhanced wear resistance
- PA6-oil filled / PA6-PTFE — self-lubricating for bearings and bushings
- PA6-IM — impact modified, improved toughness at low temperatures
- PA6-FR / PA66-FR — flame retardant grades for electrical and electronic housings
Our CNC Machining Capabilities for Nylon / PA
Equipped with 3-axis, 4-axis and 5-axis CNC machines, we produce custom CNC machining nylon/PA parts in China with complex geometries, fine features and repeatable precision. Every process is controlled by in-house programming and inspection.
CNC Milling
3-axis to 5-axis milling of pockets, slots, contours and 3D surfaces in PA6, PA66, MC nylon and reinforced grades.
CNC Turning
Precision turning of shafts, sleeves, bushings, rollers and cylindrical components with fine surface finish and concentricity.
Drilling & Tapping
Accurate hole patterns, counterbores, countersinks and internal threads from M2 upward, with controlled depth and pitch.
Gear Cutting
Spur gears, bevel gears, worm gears and racks machined from PA6 and PA66 stock, with tooth profile verified by profile projector.
Surface Finishing
Vibratory deburring, tumbling, hand polishing and heat-setting to achieve smooth, burr-free surfaces ready for assembly.
Precision Grinding
Surface grinding and cylindrical grinding for tight-tolerance sealing surfaces, bearing journals and high-precision locating faces.
Industries & Applications
Custom CNC machining nylon/PA parts in China serve a broad range of industries where strength, light weight, low friction and corrosion resistance are required. Below are the most common application areas.
Automotive
Gears, pulleys, bushings, cable ties and under-hood structural brackets
Industrial Machinery
Conveyor rollers, guide rails, wear pads, sprockets and chain tensioners
Consumer Electronics
Housings, insulators, gear trains, hinges and precision structural components
Medical Devices
Instrument handles, positioning blocks, non-implant structural parts and fixtures
Aerospace
Lightweight clips, spacers, insulators and interior components where non-metallic materials are specified
Food Processing
Conveyor parts, scraper blades, sprockets and guide components for packaging and handling lines
Textile Machinery
Yarn guides, tension discs, rollers and cam followers requiring low friction and wear resistance
Energy & Power
Insulating spacers, bushing supports, valve components and fasteners for electrical and renewable energy equipment
Featured Custom Nylon / PA Products
A selection of representative parts we regularly machine for customers worldwide. All products are manufactured to customer drawings; the examples below illustrate common part types.
Tolerances & Technical Specifications
We machine nylon/PA parts to the tolerances stated on your drawing. The reference values below reflect typical achievable precision for CNC-machined polyamide components under standard production conditions.
Machining Tolerances
| Linear dimension (general) | ±0.05 mm to ±0.10 mm |
| Linear dimension (precision) | ±0.02 mm to ±0.05 mm |
| Hole diameter | ±0.02 mm to ±0.05 mm |
| Outer diameter (turning) | ±0.02 mm to ±0.05 mm |
| Concentricity / runout | 0.02 mm to 0.05 mm TIR |
| Flatness | 0.03 mm per 100 mm |
| Surface roughness (as machined) | Ra 1.6 µm to Ra 3.2 µm |
| Surface roughness (polished) | Ra 0.4 µm to Ra 0.8 µm |
Production Specifications
| Minimum order quantity | 1 piece (prototyping accepted) |
| Maximum part size (milling) | 800 × 500 × 400 mm |
| Maximum turning diameter | 400 mm |
| Maximum turning length | 600 mm |
| Stock shapes | Round bar, plate, tube, cast block |
| Available grades | PA6, PA66, PA12, PA46, MC nylon, modified grades |
| Drawing formats accepted | DWG, DXF, STEP, IGES, PDF, X_T |
| Prototype lead time | 5 to 10 working days |
| Production lead time | 15 to 25 working days (quantity dependent) |
Why Choose Us for Custom CNC Machining Nylon/PA Parts in China
As a China-based CNC machining manufacturer focused on nylon and polyamide components, we combine engineering expertise, flexible production and rigorous quality control to deliver parts that meet your specifications on every order.
In-House Engineering Support
Our engineers review every drawing for machinability, suggest material-grade alternatives and optimize tool paths before production begins.
Flexible Batch Sizes
From a single prototype to thousands of production pieces, we scale production to your order volume without minimum-order penalties.
Rigorous In-Process Quality Control
First-article inspection, in-process dimensional checks and final verification with calipers, micrometers, CMM and profile projector ensure conformance.
Fast Turnaround
Streamlined quoting, in-house material stock and dedicated machining cells allow prototype delivery in as few as five working days.
Competitive Pricing
Direct-from-factory pricing, efficient material utilization and high machining speed keep per-part cost low without compromising precision.
Global Shipping & Export Experience
We regularly ship to North America, Europe, the Middle East, Southeast Asia and beyond, with export packaging and documentation handled for every order.