Zhejiang Zhengna Technology Co., Ltd. is a premier ISO 9001:2015 & IATF 16949 certified manufacturer, specializing in high-precision custom CNC machining parts. We provide a comprehensive suite of machining services—from prototyping to high-volume production—to support the Aerospace, Medical, Automotive, and Industrial sectors with components that demand exacting tolerances and reliable performance.
We leverage advanced, Japan-brand CNC equipment and decades of engineering expertise to transform your designs into reality. Our custom CNC machining parts services cover a complete range of processes to meet diverse application needs.
| Machining Process | Key Capabilities & Equipment | Typical Parts & Applications |
|---|---|---|
| CNC Milling | 3-axis, 4-axis, and 5-axis machining centers for complex contours, pockets, and 3D surfaces. | Housings, brackets, engine components, mold bases, and enclosures. |
| CNC Turning | Precision lathes for producing rotational, axis-symmetric parts with tight diameter tolerances. | Shafts, pins, spacers, standoffs, flanged piping, and connectors. |
| Swiss-Type CNC Lathe | High-precision, multi-axis machining for long, slender, and complex custom screw parts in a single setup. | Medical device components, watch parts, electronic connectors, and intricate shafts. |
| Multi-Spindle Screw Machining | High-volume production of small, precise turning parts from bar stock with exceptional efficiency. | Fasteners, fittings, ball studs, and components for automotive, HVAC, and electronics. |
| Wire EDM (Electrical Discharge Machining) | Precision cutting of hardened metals and complex shapes with negligible tool pressure, achieving fine finishes and sharp inside corners. | Stamping dies, extrusion dies, medical tooling, and gears. |
Choosing ZHENGNA as your custom CNC machining parts supplier provides distinct benefits that ensure quality, reliability, and value.
Our custom CNC machining parts are integral to the success of products across multiple demanding sectors:
We machine a vast array of materials sourced from reputable global suppliers like Wieland and Nippon Mining. The right material is critical for the function, durability, and cost of your custom CNC machining parts.
| Material Category | Common Grades / Alloys | Key Properties & Applications |
|---|---|---|
| Steels | Mild Steel, Alloy Steel (4140), Tool Steel, Stainless Steel (304, 316, 17-4 PH), Spring Steel | High strength, wear resistance, and corrosion resistance. Used for structural parts, shafts, and automotive components. |
| Aluminum | 6061, 7075, 5052, 2024 | Excellent strength-to-weight ratio, good machinability, and corrosion resistance. Ideal for aerospace, enclosures, and heat sinks. |
| Copper & Alloys | Copper, Brass, Bronze, Phosphor Bronze, Beryllium Copper | Superb electrical/thermal conductivity, corrosion resistance, and antimicrobial properties. Perfect for electrical connectors, bushings, and marine components. |
| Other Metals & Alloys | Titanium, Inconel, Nickel Alloys, Magnesium | High-temperature performance, exceptional strength, and biocompatibility. Used in extreme environment and medical applications. |
| Plastics & Engineering Polymers | PEEK, Delrin (Acetal), Nylon, PTFE, Ultem (PEI) | Lightweight, electrical insulation, chemical resistance, and low friction. For insulators, guides, and wear parts. |
Zhejiang Zhengna Technology combines three decades of manufacturing heritage with a forward-thinking approach to precision engineering. Whether you need a single prototype for R&D validation or a sustained supply of complex custom CNC machining parts for global deployment, we have the technical depth, quality commitment, and production capacity to be your reliable partner.
We invite you to leverage our expertise. Contact us today to discuss your project. Send your 2D drawings or 3D CAD models to receive a prompt, competitive quotation and a complimentary Design for Manufacturability (DFM) analysis.
Find answers to common questions about our custom CNC machining parts.
Custom CNC machining parts are precision components manufactured using Computer Numerical Control (CNC) technology to meet your exact specifications. These parts are produced through subtractive manufacturing processes like milling, turning, and EDM to create complex geometries with tight tolerances.
We provide comprehensive CNC machining services including: CNC Milling (3-axis, 4-axis, 5-axis), CNC Turning, Swiss-Type CNC Lathe machining for complex screw parts, Multi-Spindle Screw Machining for high-volume production, and Wire EDM for precision cutting of hardened metals.
Our custom CNC machining parts serve demanding industries including Aerospace & Defense, Medical & Surgical, Automotive (IATF 16949 certified), Industrial Machinery, and Electronics & Telecommunications. We specialize in high-precision components for critical applications.
We machine a wide range of materials: Steels (Mild, Alloy, Tool, Stainless 304/316/17-4 PH), Aluminum Alloys (6061, 7075, 5052, 2024), Copper & Alloys (Brass, Bronze, Beryllium Copper), Titanium, Inconel, Nickel Alloys, and Engineering Plastics (PEEK, Delrin, Nylon, PTFE).
We are ISO 9001:2015 and IATF 16949 certified, ensuring systematic quality management for both general industries and automotive applications. Our quality control includes First Article Inspection, in-process checks, and final verification using CMM and 2D measuring instruments.
Our 20,000 sqm facility in Zhejiang, China houses over 300 skilled staff including 40+ engineers and nearly 300 sets of advanced equipment. We have significant production capacity to handle both prototyping and high-volume manufacturing with Japan-brand CNC equipment.
Yes, we provide complete design support including Design for Manufacturability (DFM) analysis. Our services cover 3D CAD modeling, rapid prototyping, low-volume production for testing, and functional validation to ensure your custom CNC machining parts meet all requirements.
Our advantages include: Vertical integration with in-house tooling design/manufacturing, 30+ years of experience since 1990, expertise in challenging high-precision projects, and complete control over the manufacturing process from design to delivery.
We specialize in high-precision custom CNC machining parts with exacting tolerances. Our advanced 5-axis machining centers and Swiss-type lathes can achieve tight tolerances suitable for aerospace, medical, and defense applications. Specific tolerance capabilities depend on part geometry and material.
Send your 2D drawings or 3D CAD models to [email protected] or call +86-13958138997. Include material specifications, quantities, surface finish requirements, and application details. We provide prompt, competitive quotations with complimentary DFM analysis within 1-2 business days.
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