China has a well-established machining supply chain that can provide overseas customers with CNC turning, Swiss-type machining, mill-turn machining, and post-processing services. From single-unit prototypes to stable mass production, customers can choose from different types of factories based on part dimensions, structure, tolerances, and quantity.
This article compiles a list of 10 Chinese CNC turning manufacturers worth considering and provides an overview of the typical machining capabilities, materials, costs, and selection criteria for Chinese suppliers.
Why Source CNC Turning Parts from China?
Sourcing CNC-turned parts from China offers several practical advantages:
- Broad machining capabilities: Many Chinese manufacturers offer more than standard CNC turning. Their capabilities may also include Swiss-type machining, live-tool turning, and mill-turn machining for parts of different sizes and complexity.
- Wide material and finishing options: Common materials include aluminum, stainless steel, carbon steel, brass, copper, titanium, and engineering plastics. Anodizing, passivation, plating, black oxide, heat treatment, and polishing can often be managed through the same supply chain.
- Flexible order quantities: Customers can order a single prototype, a small production batch, or larger quantities. Some manufacturers have no minimum order requirement, while others use bar feeders and automated equipment for continuous production.
- Competitive overall costs: Chinese suppliers can offer a practical balance between price, precision, and lead time. When comparing quotations, buyers should also consider machine selection, setup requirements, tooling, inspection, packaging, and shipping costs.
How We Selected These CNC Turning Manufacturers
The companies listed below have been compiled primarily based on their publicly available information regarding CNC turning capabilities, equipment types, range of materials, quality control, project experience, and overseas service capabilities.
Each of these companies has its own areas of focus. Some are better suited for online quotes and rapid prototyping, while others specialize in small, precision parts, and still others offer one-stop services ranging from CNC turning to surface finishing. The order of the list does not represent a definitive ranking; procurement personnel should still evaluate these companies based on their own drawings and project requirements.
Top 10 CNC Turning Manufacturers in China
| Company | Location | Main Capabilities | Best For |
|---|---|---|---|
| YUANYI Precision | Dongguan | CNC turning, Swiss turning, and mill-turn machining | Complex precision parts and flexible production volumes |
| RapidDirect | Shenzhen | Online CNC machining and on-demand manufacturing | Fast quotations and multi-process projects |
| AT Machining | Shenzhen | CNC turning and Swiss machining | Small precision-turned parts |
| Runsom Precision | Dongguan | CNC turning, live tooling, and Swiss machining | Prototypes through production |
| Gensun Precision | Dongguan | CNC turning and multi-axis machining | International customers and low-volume projects |
| 3ERP | Zhongshan | CNC turning and rapid manufacturing | Rapid prototypes and product development |
| WayKen | Shenzhen | CNC turning and rapid prototyping | Appearance parts and low-volume production |
| DEK Manufacturing | Shenzhen | Precision turning and Swiss turning | High-precision cylindrical parts |
| Yijin Solution | Shenzhen | CNC turning and Swiss machining | Diverse turned parts and volume production |
| Prolean Tech | Shenzhen | CNC turning and on-demand manufacturing | One-stop sourcing for multi-process projects |
1. YUANYI Precision Manufacturing
YUANYI Precision Manufacturing is a precision CNC machining manufacturer based in Dongguan, China. Founded in 2012, the company provides standard CNC turning, Swiss-type machining, and mill-turn machining for shafts, pins, sleeves, connectors, threaded components, and complex rotational parts with milled features.
Its standard CNC turning capacity reaches Ø350 × 500 mm, with bar diameters up to Ø65 mm. Swiss-type machining is available for slender shafts and small precision components, with tolerances down to ±0.003 mm for suitable parts. Its mill-turn machines can perform turning, milling, drilling, tapping, and side-feature machining in one setup, reducing errors caused by repeated clamping.
YUANYI works with aluminum, stainless steel, carbon steel, titanium, brass, copper, and engineering plastics. There is no minimum order quantity, and dimensional inspection, material certificates, and quality reports are available for prototypes, low-volume orders, and production runs. Quotations are normally provided within 24 hours.
Best for: Complex turned parts, slender shafts, mill-turn components, and international customers that require responsive communication and inspection reports.
2. RapidDirect
RapidDirect is a Chinese on-demand manufacturing supplier offering CNC turning, CNC milling, 5-axis machining, injection molding, sheet metal fabrication, and 3D printing. Customers can upload their files through its online platform, select materials and surface finishes, and receive manufacturing feedback.
The company is well suited to product development teams that need several manufacturing processes from one supplier. In addition to cylindrical CNC-turned parts, customers can source enclosures, brackets, sheet metal components, and plastic parts through the same platform.
RapidDirect follows a platform-based manufacturing model with a broad range of services. For projects involving specialized Swiss-turning requirements, slender shaft control, or dedicated high-volume production, customers should confirm the actual equipment and production arrangements during the quotation stage.
Best for: Online quotations, rapid prototypes, and projects requiring multiple manufacturing processes.
3. AT Machining
AT Machining is based in Shenzhen and provides CNC turning, CNC milling, 5-axis machining, and Swiss-type machining. Its turning capabilities cover standard cylindrical parts, threaded components, small-diameter parts, and production components requiring consistent repeatability.
The company’s Swiss machining capabilities include small-diameter bar stock, serving industries such as medical, automotive, electronics, robotics, and aerospace. Swiss-type machines are particularly suitable for parts with small diameters, high length-to-diameter ratios, or continuous bar-fed production requirements.
Buyers should identify critical diameters, concentricity, runout, and surface roughness requirements in their RFQs. This helps the supplier determine whether the part is better suited to a standard CNC lathe or a Swiss-type machine.
Best for: Small precision-turned parts, slender shafts, and Swiss-turned components.
4. Runsom Precision
Runsom Precision is located in Dongguan and provides CNC turning, Swiss CNC machining, CNC milling, 5-axis machining, and other custom manufacturing services. Its turning services support rapid prototypes, low-volume orders, and larger production runs.
CNC lathes equipped with live tooling can perform drilling, tapping, grooving, and flat-surface milling during the turning process. This reduces the need to transfer rotational parts with non-axisymmetric features to a separate milling machine.
Runsom’s broad manufacturing capabilities make it suitable for customers moving from product validation to production. Before placing an order, buyers should confirm how critical dimensions will be inspected, the sampling plan for production batches, and which quality documents will be supplied.
Best for: Prototypes, low-volume production, and components combining turned and milled features.
5. Gensun Precision Machining
Gensun Precision Machining is located in China’s Greater Bay Area and offers CNC turning, CNC milling, and multi-axis machining. The company has experience serving international customers and produces metal and plastic prototypes, low-volume parts, and production components.
Its turning services are suitable for shafts, flanges, bushings, fittings, fasteners, and other cylindrical parts. Gensun can also be considered for larger rotational components, although the available diameter, tolerance, and machine travel should be confirmed through a formal quotation.
Customers working with a full-service manufacturer can request quotations for turning, milling, EDM, and surface finishing together. This may allow multiple components to be sourced from one supplier.
Best for: International projects, larger turned components, and low-volume production.
6. 3ERP
3ERP is a rapid manufacturing company based in Zhongshan. It provides CNC turning, CNC milling, rapid tooling, injection molding, and other prototyping and production services. Its CNC turning capabilities cover both metal and plastic parts for product development and low-volume manufacturing.
The company supports prototype and production parts under an ISO 9001 quality management system. It is particularly suitable for customers who need to complete design validation, functional testing, or presentation models within a short lead time.
If an order may grow from a few parts to several thousand units, buyers should confirm the production equipment, cycle time, and long-term supply capacity during the quotation stage. The fastest option for an initial prototype may not always be the most suitable setup for volume production.
Best for: Rapid prototypes, product development, and low-volume CNC turning.
7. WayKen
WayKen is based in Shenzhen and focuses on rapid prototyping and low-volume manufacturing. Its capabilities include CNC turning, CNC milling, EDM, vacuum casting, rapid tooling, and surface finishing.
WayKen is well suited to functional prototypes, appearance models, and low-volume end-use parts during product development. Its combination of manufacturing processes can also help customers source metal turned parts, plastic enclosures, and transparent components from one supplier.
For long-term repeat production, customers should confirm the company’s available turning capacity, batch consistency controls, and future pricing structure. Strong prototyping capabilities do not automatically make every production setup suitable for high-volume turning.
Best for: Product prototypes, appearance-critical parts, and low-volume manufacturing.
8. DEK Manufacturing
DEK Manufacturing is based in Shenzhen and provides precision CNC turning, Swiss CNC turning, CNC milling, grinding, and other custom machining services.
Its turning capabilities cover standard cylindrical components and complex parts requiring live-tool machining. Swiss turning is available for small-diameter, slender, or highly repeatable components such as precision pins, connectors, sleeves, and instrument parts.
DEK machines aluminum, stainless steel, tool steel, brass, copper, titanium, and various engineering plastics. Customers should confirm the machining approach based on material hardness, length-to-diameter ratio, and critical tolerance requirements.
Best for: High-precision cylindrical components, Swiss-turned parts, and parts made from specialized materials.
9. Yijin Solution
Yijin Solution is based in Shenzhen and provides CNC turning, Swiss CNC machining, CNC milling, mold manufacturing, and die casting. Its turning services cover shafts, bushings, pins, pipe fittings, and threaded components.
The company is suitable for customers requiring a broad range of materials and production quantities. Standard CNC turning can be used for conventional rotational parts, while Swiss-type equipment is available for small, repeatable, and higher-volume components.
Because Yijin provides a broad range of manufacturing services, buyers should confirm which equipment will be used, how critical tolerances will be inspected, and whether production will remain on the same machine after sample approval.
Best for: Diverse turned components, Swiss machining, and volume production.
10. Prolean Tech
Prolean Tech is based in Shenzhen and provides on-demand CNC machining and sheet metal fabrication. Its capabilities include CNC turning, CNC milling, turn-mill machining, drilling, and other secondary operations.
Prolean is suitable for projects moving from prototype development into production. It can also support customers who need turned parts, milled components, and sheet metal parts within the same project. A range of metals and plastics is available, together with common surface-finishing options.
For high-precision turning projects, buyers should define all critical dimensions, inspection standards, production quantities, and documentation requirements before requesting a quotation. This information helps determine whether its multi-process manufacturing model is suitable for the part.
Best for: Multi-process sourcing, on-demand manufacturing, and projects moving from prototypes to production.
CNC Turning Capabilities Available in China
Chinese CNC turning suppliers do not all use the same equipment or focus on the same types of projects. When selecting a china cnc turning service, the machining method should be matched to the part geometry rather than using the same type of lathe for every round component.
| Machining Method | Suitable Parts | Main Features |
|---|---|---|
| Standard CNC Turning | Shafts, sleeves, bushings, flanges, and threaded parts | Suitable for conventional cylindrical components across a broad size range |
| Precision CNC Turning | Precision shafts, valve components, and instrument parts | Focuses on diameter tolerances, concentricity, runout, and surface finish |
| Swiss-Type Machining | Slender shafts, small-diameter pins, and connectors | Uses a guide bushing to support the material close to the cutting tool |
| Mill-Turn Machining | Rotational parts with holes, grooves, flats, or eccentric features | Completes turning and milling in one setup, reducing accumulated errors |
| Prototype Turning | One-off parts and small quantities for testing | Offers fast production for design validation and functional testing |
| Production Turning | Hundreds or thousands of repeat parts | Supports continuous production with bar feeders and automated equipment |
Standard CNC turning is suitable for parts mainly defined by outside diameters, internal bores, faces, tapers, and threads. Swiss-type machining is better suited to small-diameter and slender components, but not every short or large-diameter part requires a Swiss-type lathe.
How to Choose a CNC Turning Manufacturer in China
The right supplier is not always the largest company. What matters is whether its equipment matches your part, its engineers understand the drawings, and its team can clearly explain the proposed machining plan.
- Check the machining capacity: Confirm the maximum turning diameter, effective machining length, bar capacity, and spindle bore. For slender shafts, ask whether the supplier has Swiss-type machines, steady rests, or other methods for controlling deflection.
- Verify tolerance and inspection capabilities: Clearly mark critical requirements such as diameter tolerances, concentricity, runout, straightness, thread accuracy, and surface roughness. These features require suitable measuring equipment rather than basic calipers alone. For complex parts, request a first article inspection, CMM report, or complete dimensional report.
- Evaluate engineering communication: A capable supplier should identify thin walls, deep holes, unnecessarily tight tolerances, and difficult thread features. It should also provide practical DFM feedback based on the part’s function. A quotation that includes only a price and lead time, without confirming critical dimensions, may create problems later.
- Confirm production capacity: A skilled machinist may be able to produce a good prototype, but repeat production requires stable machines, tooling control, in-process inspection, and production records. Ask whether samples and production parts will be made on the same equipment and how tool wear will be controlled during larger runs.
What to Include in Your CNC Turning RFQ
A clear RFQ helps the manufacturer select the right material, machine, tooling, inspection method, and production schedule.
Include the following information:
- Part name and revision number
- 2D engineering drawing and 3D CAD file
- Material grade and certification requirements
- Prototype and production quantities
- General tolerances and critical dimensions
- GD&T requirements
- Surface roughness requirements
- Heat treatment and surface finishing
- First article inspection or full dimensional report
- Packaging requirements
- Delivery address and required delivery date
If the order quantity may increase later, request tiered pricing for 10, 100, and 1,000 parts. This helps you determine whether the supplier is suitable only for prototypes or can also support ongoing production.
Why Choose YUANYI for CNC Turning in China?
YUANYI provides standard CNC turning, Swiss-type machining, and mill-turn machining for prototypes and production parts. Our turning capacity reaches Ø350 × 500 mm, with tolerances down to ±0.003 mm for suitable Swiss-turned components.
We offer no MOQ, DFM support, dimensional inspection, and quality reports. For buyers comparing cnc turning china suppliers, drawings can normally be reviewed and quoted within 24 hours.
Need Custom CNC-Turned Parts?
Send us your drawings, material, and quantity. YUANYI will review your project and provide machining feedback and a quotation within 24 hours.
Request a CNC Turning QuoteGet CNC-Turned Parts from China
When choosing a CNC turning manufacturer in China, compare machine compatibility, achievable tolerances, inspection capabilities, production consistency, and engineering communication. The lowest quotation does not always result in the lowest total project cost.
A supplier that consistently delivers conforming parts is often more valuable over the life of the project.
Frequently Asked Questions
CNC turning in China can offer competitive manufacturing costs, but the final price depends on the material, part geometry, tolerances, quantity, and inspection requirements. Buyers should compare the total delivered cost rather than the machining price per part alone.
Achievable tolerances depend on the part size, geometry, and material. Manufacturers with precision CNC lathes and Swiss-type machines can hold tolerances of ±0.005 mm or tighter on suitable features. The actual tolerance should always be evaluated using the specific drawing.
Yes. Some Chinese CNC machining companies, including YUANYI, have no minimum order requirement. They can produce a single prototype, a small production batch, or repeat production orders.
Simple CNC-turned prototypes can often be completed within a few days. Complex geometries, special materials, heat treatment, and surface finishing may require additional time. Production lead times also depend on material availability, machine scheduling, order quantity, and inspection requirements.
Standard CNC turning normally holds the workpiece in a chuck and is suitable for cylindrical parts across a broad size range. Swiss turning uses a guide bushing to support the bar close to the cutting tool, making it better suited to small-diameter, slender, and high-precision components.
Review the supplier’s equipment, quality certifications, inspection capabilities, machined-part examples, and sample inspection reports. Before placing a large production order, consider starting with a prototype or small batch to verify quality and communication.
