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Skip to content Custom nylon components for industrial equipment, automation, instrumentation, and mechanical assemblies. TENGHUI provides in-house CNC milling and turning, together with SLS and MJF 3D printing services for suitable designs.
From rollers and bushings to housings and complex brackets, we review material selection, critical dimensions, and finishing requirements before production.
Nylon, also known as polyamide or PA, offers a range of strength, toughness, and wear characteristics. The appropriate grade depends on the manufacturing process, loading, moisture exposure, and operating conditions.
| Material | Common Manufacturing Route | Key Characteristics & Selection Notes | Typical Applications |
|---|---|---|---|
| PA6 General-Purpose Nylon | CNC milling and turning | A practical option for many mechanical and wear components. Cast and extruded stock can have different characteristics. Moisture absorption and material condition affect dimensions and performance. | Rollers, wear pads, guides, bushings, and spacers |
| PA66 Engineering Nylon | CNC milling and turning | Can offer a useful combination of stiffness, strength, and wear performance. Properties depend on grade, stock condition, temperature, and moisture content. | Gears, bushings, insulators, and equipment components |
| PA12 Nylon for 3D Printing | SLS and MJF | Suitable for complex shapes and low-volume components without mold tooling. Generally absorbs less moisture than common PA6 and PA66 grades. Printed properties depend on process and build conditions. | Housings, brackets, ducts, covers, and functional prototypes |
| Glass-Filled Nylon Grade-Specific Reinforced | Depends on the selected material | Can improve stiffness and dimensional behavior, with trade-offs in toughness, surface finish, and wear against mating parts. Glass-fiber and glass-bead materials are different and must be specified separately. | Stiff brackets, fixtures, housings, and selected structural components |
*Material availability, stock form, reinforcement type, and manufacturing route are confirmed during quotation. A glass-filled CNC material should not be assumed equivalent to a glass-filled printing material.
Nylon properties vary with grade, manufacturing history, and moisture content. Dry and moisture-conditioned material data should not be treated as interchangeable. For performance-critical parts, please specify:
Finishing is selected according to the manufacturing route, appearance, cleanliness, and dimensional requirements. Availability is confirmed during quotation.
CNC-machined parts retain visible tool marks without an additional decorative finish. This is a practical option for many functional mechanical components.
SLS and MJF parts are cleaned to remove accessible loose powder. The remaining surface typically has a textured appearance that differs from machined nylon.
Dyeing can be evaluated for suitable printed nylon parts and selected grades. Available colors and consistency depend on the material, original color, and process.
Controlled blasting can help clean suitable printed surfaces and create a more consistent matte texture across complex external geometries.
Cleaning methods are selected according to the material, geometry, and expected residues.
Part numbers, orientation marks, and other identification can be reviewed where required for assembly verification.
Nylon is a useful engineering material for many moving, protective, and lightly loaded components. Material and process selection should follow the actual application requirements.
PA6 and PA66 are common options for CNC-machined mechanical components. Selection depends on the available stock grade, strength, wear conditions, temperature, and moisture exposure.
PA12 is commonly used for SLS and MJF parts where complex geometry and production without mold tooling are priorities.
Glass-filled materials may be considered when greater stiffness is required, but the exact grade and reinforcement type must be confirmed.
Nylon absorbs moisture from the environment. This can increase dimensions and change mechanical properties, including stiffness and toughness.
The amount and rate of change depend on the grade, part thickness, humidity, temperature, and exposure time. A single growth factor should not be applied to every nylon component.
For close-fitting parts, agree on the expected service environment, delivery condition, and inspection conditions before production.
Some projects specify conditioning to bring parts toward a defined moisture state before assembly or testing.
Conditioning can affect both dimensions and mechanical properties. It is not automatically required for every part and does not prevent later changes in a different environment.
Where required, the method, target condition, and final inspection should be agreed in advance.
CNC machining is suitable when the selected stock material, machined surfaces, or particular dimensional features are important.
SLS and MJF can suit complex shapes, integrated features, and low-volume parts without mold tooling. Printing orientation, wall thickness, powder removal, and post-processing must be considered.
The best route depends on geometry, quantity, performance, and total cost rather than a fixed quantity threshold. Injection molding can be evaluated separately where required.
Tolerances are confirmed after reviewing the material, manufacturing process, dimensions, and geometry.
CNC-machined and printed features require different tolerance assessments. Thin sections, large flat surfaces, moisture uptake, and temperature changes can affect final measurements.
Mark critical dimensions, fits, threads, and inspection requirements on your drawing. Selected printed features may require post-machining where feasible.
In some applications, nylon can reduce weight or change friction and noise behavior.
Replacement requires review of stiffness, strength, creep, wear, temperature, moisture, and assembly design. Glass reinforcement does not make nylon equivalent to metal, and an existing metal design may require modification.
Straightforward CNC prototypes can often be completed in approximately 3–7 working days. SLS and MJF schedules are confirmed according to material, part size, quantity, and finishing.
Complex geometries, special materials, conditioning, and inspection may require additional time. We confirm the delivery plan after reviewing your files.
Please provide:
For moving components, include mating materials, clearances, lubrication, and wear requirements where available.
Upload your 2D drawings (PDF/DWG/DXF) and 3D CAD files (STEP/IGES). We evaluate part geometry, materials, and tolerances within 24 hours.
Once we receive your design files, our senior manufacturing engineers will manually perform a comprehensive DFM review and deliver an accurate, optimized quote within 24 hours.
