Top 15 CNC Machining Companies & Manufacturers in China (2026)

China has no shortage of CNC machine shops. The hard part is telling them apart.

Search “CNC machining China” and you get thousands of results. Some are real factories with their own machines. Some are trading companies that pass your drawing to whichever shop quotes lowest. Others are online platforms that route orders through a network of partner suppliers. On a website, they can all look the same.

The difference shows up after you pay. CNC machined parts arrive out of tolerance. Inspection reports are missing. The second batch does not match the first.

This guide lists 15 CNC machining companies and manufacturers in China for 2026. It compares their locations, main capabilities, certifications, online quoting options, and the projects each one fits best. It also covers China’s main machining hubs, why buyers source here, and how to vet a supplier before the first order.

China’s Main CNC Machining Hubs

Location matters if you plan to audit suppliers in person. Shops in the same region can often be visited in one trip.

Most CNC machine shops serving overseas buyers sit in three coastal provinces. According to Haizol’s China CNC Machining Industry Report 2026, Jiangsu (30.3%), Guangdong (28.9%), and Zhejiang (23.0%) account for 82.2% of the 456 CNC machining facilities it audited.

Pearl River Delta (Guangdong)

Key cities are Shenzhen, Dongguan, Zhongshan, Guangzhou, and Foshan. This is the main center for rapid prototyping and on-demand manufacturing. Finishing shops, mold makers, and electronics suppliers are close by, and parts ship through the Shenzhen and Hong Kong ports. In the Haizol sample, 52.3% of Guangdong factories run 5-axis milling machines and 61.4% offer Swiss-type turning, against a 48.2% national rate. Most companies on this list are based here.

Yangtze River Delta (Jiangsu, Zhejiang, Shanghai)

Key cities are Suzhou, Wuxi, Ningbo, Hangzhou, and Shanghai. Shops here serve many automotive, semiconductor equipment, and industrial machinery manufacturers. They often focus on tight-tolerance components and repeat production. Parts ship through the Shanghai and Ningbo ports.

Other regions

Tianjin, Qingdao, and Dalian have a base in heavy industry and marine equipment. Chengdu and Chongqing have growing automotive and aerospace clusters. These regions suit large, heavy parts or buyers with a nearby industrial customer. They are less common for prototype work.

Comparing the Top 15 Chinese CNC Machining Companies

These China CNC machining companies were selected based on in-house manufacturing capabilities, quality certifications, process range, online quoting, and experience serving overseas customers. Company details were verified against official websites and public records in October 2026.

1. Aria Manufacturing: Best for Multi-Process Parts With European Support

Aria Manufacturing runs its main CNC machining factory in Dongguan, plus an office and CNC machining workshop in Denmark. It has more than 15 years of experience making metal and plastic parts for overseas customers.

Aria runs its own instant online quoting platform. Buyers upload a CAD file, choose material, finish, and tolerance, and get a price in minutes. The pricing model is recalibrated every year with production data to keep quotes close to the final order price.

• Website: madearia.com
• Main Capabilities: 3-, 4-, and 5-axis CNC milling, CNC turning and mill-turn, EDM, injection molding, sheet metal fabrication, 3D printing
• Certifications: ISO 9001:2015. RoHS and REACH documentation available for applicable materials.
• Advantages:
  • Office and CNC machining workshop in Denmark for local contact and support in European time zones
  • One-stop service: CNC machining, injection molds, molding, sheet metal, and finishing under one roof and one quality system
  • Flexible production: one supplier for prototypes, small batches, and mass production, with the process chosen to fit each part
• Best For: European buyers who want local support, and products that need machined, molded, and sheet metal parts from one supplier

2. JLCCNC: Best for Low-Cost Fast Prototypes

JLCCNC is the CNC machining brand of Shenzhen JLC Technology Group, the company behind JLCPCB. JLC was founded in Shenzhen in 2006 and became known for low-cost PCB prototypes. It listed on the Shenzhen Stock Exchange in August 2026 and reported 2025 revenue of more than RMB 10 billion (about US$1.4 billion).

JLC launched its CNC machining service in July 2023. It now runs five brands for hardware development: EasyEDA for PCB design, JLCPCB for PCB fabrication and assembly, JLC3DP for 3D printing, JLCCNC for CNC machining and sheet metal, and JLCMC for standard mechanical components.

• Website: jlccnc.com
• Main Capabilities: 3-5-axis CNC milling, CNC turning and mill-turn, wire and sinker EDM, sheet metal laser cutting, bending, and welding
• Certifications: ISO 9001
• Advantages:
  • Instant online pricing and payment, with no sales back-and-forth for simple parts
  • Backed by a publicly listed parent company with audited financial reports
  • One account for PCBs, 3D printed parts, machined parts, and standard components such as linear guides, motors, and aluminum profiles from JLCMC
• Best For: Hardware developers and automation engineers who want low-cost prototypes fast and like to source boards, custom parts, and standard parts in one place

3. RapidDirect: Best for Online Quoting Across Many Processes

RapidDirect started as a single factory in Shenzhen in 2009. It now combines its own factories with a network of audited partner factories, which adds capacity for larger orders and more processes.

It is one of the most recognized Chinese CNC machining brands among overseas engineers. It invests heavily in content, video, and digital marketing, and has strong customer reviews on Trustpilot. It recently added PCB and PCBA services, moving closer to a full product development platform.

• Website: rapiddirect.com
• Main Capabilities: CNC machining, Swiss machining, injection molding, sheet metal fabrication, 3D printing, die casting, vacuum casting
• Certifications: ISO 9001:2015, ISO 13485:2016, IATF 16949, ISO 14001
• Advantages:
  • Instant quotes with automated DFM analysis
  • Partner network adds capacity for larger orders
  • Medical and automotive certifications
• Best For: Teams that want to quote and manage several processes on one online platform

4. PCBWay: Best for Electronics Projects

As its name suggests, PCBWay’s core business is printed circuit boards. Founded in 2014 and operated by Shenzhen JDB Technology, it started with PCB prototyping and later added PCB assembly. Its factories are in Shenzhen, and it has since added CNC machining, sheet metal, and injection molding.

CNC machining is a secondary service that grew out of its PCB business. Many customers add enclosures, brackets, and heat sinks to the same order as their boards. PCBWay is also known in the maker community for its project sharing platform and its annual PCB design contest.

• Website: pcbway.com
• Main Capabilities: CNC machining, PCB fabrication and PCBA, 3D printing, sheet metal fabrication, injection molding, vacuum casting
• Certifications: ISO 9001:2015
• Advantages:
  • PCB design, fabrication, assembly, and enclosures from one supplier
  • Online quoting across most processes
  • Large user base in the electronics and maker community
• Best For: Electronics developers who need boards, enclosures, brackets, and heat sinks together

5. Runsom Precision: Best for Swiss-Turned Precision Parts

Runsom Precision (Dongguan Runsom Precision Co., Ltd.) is a CNC machine shop in Fenggang, Dongguan, founded in 2012. It is a machining-focused supplier: most of its work is CNC milling, CNC turning, and Swiss turning, with 3D printing for early prototypes.

Swiss turning sets it apart from most shops on this list. Swiss-type lathes support the bar close to the cutting tool, which keeps small, long, or slender parts from bending during machining. This suits pins, shafts, connectors, and medical or electronic components.

• Website: runsom.com
• Main Capabilities: 3-5 CNC machining, Swiss turning, 3D printing, sheet metal fabrication
• Certifications: ISO 9001:2015
• Advantages:
  • Swiss turning for small, long, slender parts
  • Machining-focused process range
  • Inspection services for machined components
• Best For: Precision prototypes, complex machined parts, and Swiss-turned components

6. 3ERP: Best for Prototypes With US-Based Support

3ERP is one of the few Chinese CNC machining companies with an office in the United States. Founded in 2010, it runs its factory in Zhongshan, Guangdong, and has a US office in Independence, Missouri. Its main focus is rapid prototypes and low-volume production for overseas customers.

• Website: 3erp.com
• Main Capabilities: CNC machining, plastic injection molding, sheet metal fabrication, 3D printing, urethane casting, die casting, aluminum extrusion
• Certifications: ISO 9001:2015
• Advantages:
  • US office for local contact with North American customers
  • Customers talk directly with the engineers and technicians who make the parts
  • Equipment list, NDA, and customer reviews published on its website
• Best For: North American buyers who need prototypes and low-volume parts with direct engineering contact

7. Yijin Solution: Best for Regulated Industries and Custom Fasteners

Yijin Solution is a Shenzhen manufacturer founded in 2003. It was known as Yijin Hardware until a recent rebrand, and the old name still appears in many supplier lists. The company started in custom fasteners and hardware, then expanded into CNC machining, sheet metal, molding, and casting.

Two things set it apart. First, it holds aerospace, medical, and automotive quality certifications, which few shops of its size carry together. Second, it offers design support for buyers who only have a concept or sketch, with in-house designers and engineers who can turn an idea into production drawings.

• Website: yijinsolution.com
• Main Capabilities: CNC Machining, Swiss machining, sheet metal fabrication, 3D printing, injection molding, die casting
• Certifications: ISO 9001, ISO 13485, AS9100D, IATF 16949, ISO 14001
• Advantages:
  • Aerospace, medical, and automotive certifications at one supplier
  • Custom bolts, nuts, screws, and rivets alongside machined parts
  • Design support for projects without finished drawings
• Best For: Aerospace, medical, and automotive parts, buyers who need machined parts and custom fasteners together, and startups that need help turning a concept into drawings

8. Haizol: Best for Comparing Multiple Supplier Quotes

Haizol is a Shanghai-based sourcing platform, not a factory. It was founded in 2015 and is backed by venture capital. Instead of making parts itself, it connects overseas buyers with audited Chinese manufacturers for CNC machining, molding, casting, and fabrication.

It works in two ways. In the marketplace model, buyers post an RFQ and receive competing quotes from several matched suppliers, then choose and manage the factory themselves. In the managed sourcing model, Haizol handles supplier selection, production follow-up, and assembly of key components, and the buyer deals with one contact.

• Website: haizolglobal.com
• Main Capabilities: Supplier matching for CNC milling, 5-axis machining, turning, Swiss machining, EDM, grinding, sheet metal, stamping, casting, injection molding, and assembly
• Certifications: Held by individual suppliers, not Haizol. Check which factory holds each certificate.
• Advantages:
  • Several competing quotes per RFQ
  • Supplier profiles show audited equipment and certifications
  • Project coordination service for multi-supplier orders
• Best For: Procurement teams that want to compare many factories and are comfortable managing supplier selection

9. PARTMFG: Best for Documented Quality Requirements

PARTMFG (Shenzhen Part MFG Co., Ltd.) is a contract manufacturer in Songgang, Bao’an District, Shenzhen. It focuses on multi-axis CNC machining of metal and plastic parts, with sheet metal fabrication, 3D printing, and finishing as supporting services.

It also machines materials that many general shops avoid, including ceramics, carbon fiber, superalloys, and Kovar, and offers micro machining for very small features.

• Website: partmfg.com
• Main Capabilities: Multi-axis machining, CNC turning, sheet metal fabrication, 3D printing, surface finishing
• Certifications: ISO 9001:2015, ISO 13485:2016, IATF 16949:2016
• Advantages:
  • Medical and automotive certifications
  • DFM support at quote stage
  • Inspection and material documentation available
• Best For: Machined metal and plastic parts where buyers need inspection records and material documents

10. GENSUN: Best for Machining Plus Casting and Extrusion

GENSUN (Gensun Precision Machining Co., Ltd.) is a manufacturer in Humen, Dongguan, founded in 2006. Its core service is precision CNC milling and turning, and it also offers casting, aluminum extrusion, and sheet metal work, so one supplier can cover a part’s whole route from raw shape to finished component.

This matters when a part moves into higher volume. A machined prototype can switch to a cast or extruded blank that only needs finish machining, which cuts material waste and machining time.

• Website: china-machining.com/
• Main Capabilities: Multi-axis machining, turning, EDM, die casting, precision casting, aluminum extrusion, sheet metal stamping, laser cutting, bending, welding, surface finishing, assembly
• Certifications: ISO 9001:2015, ISO 14001:2015, ISO 13485
• Advantages:
  • Casting and extrusion in-house, useful when a part moves from machined to near-net-shape
  • Experience with automation equipment parts
  • Full metal fabrication range alongside machining
• Best For: Automation parts and metal products that need machining plus casting, extrusion, or fabrication

11. WayKen: Best for High-Quality Prototypes

WayKen (WayKen Rapid Manufacturing Limited) is a rapid prototyping company registered in Hong Kong, with its factory in Guanlan, Longhua District, Shenzhen. It focuses on prototypes and low-volume production of plastic and metal parts.

• Website: waykenrm.com
• Main Capabilities: CNC milling and turning, 3D printing, vacuum casting, sheet metal fabrication, injection molding, rapid tooling, surface finishing
• Certifications: ISO 9001:2015, IATF 16949:2016, ISO 14001
• Advantages:
  • Strong automotive prototype experience, backed by IATF 16949
  • Cosmetic finishing for appearance models
  • Vacuum casting for small runs of plastic parts
• Best For: Appearance models, prototypes for functional testing, and pre-production parts

12. DEK: Best for Tight-Tolerance Aerospace and Medical Parts

DEK (Shenzhen DEK Manufacturing Co., Ltd.) is a Shenzhen CNC machine shop that has been in business since 2002. It focuses on precision metal and plastic parts with tight tolerances, from one-off prototypes to full production.

Buyers new to CNC sourcing may not recognize the name. DEK’s website was offline for a long period between 2024 and 2025 and was later rebuilt, so the brand has been less visible online than other platforms.

• Website: dekmake.com
• Main Capabilities: CNC Machining, EDM, precision grinding, 3D printing, sheet metal fabrication, vacuum casting, injection molding
• Certifications: ISO 9001, ISO 13485:2016, AS9100D
• Advantages:
  • Precision grinding for tight flatness and surface finish
  • Aerospace and medical certifications
  • Dimensional inspection and quality documentation
• Best For: Tight-tolerance parts for aerospace, medical, and industrial applications

13. HLH Prototypes: Best for UK and European Buyers

HLH Prototypes was founded in 2008 and runs facilities in Shenzhen and Dongguan. It was co-founded by British engineer James Murphy, and its management combines Chinese production with Western-style project handling.

• Website: hlhprototypes.com
• Main Capabilities: CNC milling for metal and plastic, SLA and SLS 3D printing, vacuum casting, sheet metal fabrication, injection molding, rapid tooling, reaction injection molding (RIM), surface finishing, assembly
• Certifications: ISO 9001:2015
• Advantages:
  • UK-based team for European customers
  • RIM for large, lightweight plastic parts
  • Metal, plastic, and composite parts in one project
• Best For: UK and European buyers who need prototypes and short production runs in different materials

14. AT Machining: Best for Machining and Finishing Only

AT Machining (AT Precision Machining Ltd.) is a Shenzhen machine shop founded in 2007. Unlike most companies on this list, it does not offer molding, casting, or 3D printing. Its work is limited to CNC machining, EDM, grinding, and the finishing that machined parts need.

• Website: at-machining.com
• Main Capabilities: CNC Machining, EDM, precision grinding, anodizing, powder coating, polishing, bead blasting
• Certifications: ISO 9001:2015
• Advantages:
  • Machining-focused shop with EDM and grinding in-house
  • Finishing handled alongside machining
  • Material certificates and inspection reports on request
• Best For: Precision machined parts where machining and finishing are the only processes needed

15. NICE Rapid: Best for Silicone and Low-Volume Molded Parts

NICE Rapid is a Zhongshan company founded in 2012. It began as a rapid tooling shop and took its current name, NICE Rapid Tooling Manufacturing, in 2015. CNC machining remains a core service, but its main focus is tooling and molding for low-volume production.

• Website: nicerapid.com
• Main Capabilities: CNC milling and turning, 5-axis machining, 3D printing (SLA, SLS, FDM, metal), vacuum casting, injection molding, silicone molding, compression molding, surface finishing, assembly
• Certifications: ISO 9001:2015
• Advantages:
  • Silicone and compression molding in-house
  • Rapid tooling for low-volume molded parts
  • Handles one-off parts through small batches
• Best For: Projects that start with machined prototypes and move to silicone or plastic molded parts

Why Choose Chinese CNC Machining Companies?

Most overseas buyers outsourcing CNC machining come to China for price. Many stay for speed, precision, and the range of processes available in one place.

• Lower unit costs: Savings are largest on parts with several setups, tight tolerances, or manual finishing. They are smaller when raw material dominates the cost.
• Precision and multi-axis capability: Established shops run 5-axis machining centers, Swiss-type lathes, wire EDM, and CMM inspection. In Haizol’s 2026 audit of 456 suppliers, 38.8% operate 5-axis milling centers. Standard milling and turning reliably holds ±0.025 to ±0.05 mm, and top-tier shops go tighter on critical features.
• Deep local supply chains: Material suppliers, heat treaters, and anodizing and plating shops often sit close together. Secondary processes take days, not weeks.
• Prototype to production: Many shops accept orders from 1 piece to thousands. Some also offer injection molding and sheet metal, so you keep one supplier as volumes grow.
• Fast quoting: Many suppliers offer online quotes with automated DFM feedback. Simple prototypes often ship within a few working days.

China is not always the best fit. Local suppliers can make more sense for large, simple parts where shipping cancels the savings, for fully automated high volume production, for parts needed in 1 or 2 days, or when tariffs push landed cost above local quotes.

How to Choose a CNC Machining Company in China

A low quote means little if the parts fail inspection. Use these steps to narrow your shortlist of CNC machining suppliers.

1. Confirm Who Will Make Your Parts

A direct factory gives you one point of accountability for quality control. An online platform offers fast quotes, but a partner shop may make your parts. A sourcing marketplace gives you many quotes, but you manage supplier selection yourself.

Check the business license. Its registered scope shows whether the company is a manufacturer or a trading company. Ask for case studies or references with custom machined parts similar to yours.

2. Check Equipment Against Your Part

A simple aluminum bracket may only need 3-axis milling. A part with features on several faces may need 4-axis or 5-axis machining. Sharp internal corners or hardened steel may need EDM or grinding.

Ask which surface treatment steps, such as anodizing or plating, are done in-house. Each outsourced step adds lead time and quality risk.

3. Verify Certifications and Inspection

Ask for the certificate, not a logo. Check that it is listed in the issuing body’s online database and that its scope covers the site making your parts.

ISO 9001 is the baseline industry standard. Medical parts usually need ISO 13485, aerospace parts AS9100, and automotive parts IATF 16949.

Request a first article inspection (FAI) report for new parts and a dimensional report with each shipment. For medical or automotive parts, confirm that records can be traced to each batch.

4. Test the Engineering Response

Send a real drawing with GD&T callouts. Useful DFM feedback flags:

• Tolerances tighter than the function needs
• Thin walls, deep pockets, or sharp internal corners
• Material choice and availability
• Ways to cut setups or use a cheaper process

A complex part quoted with no questions usually means no one read the drawing closely.

5. Compare Quotes on the Same Basis

Send every supplier the same drawings and specs. Check that each quote covers material grade, tolerances, inspection, finishing, setup costs, and shipping terms (EXW, FOB, or DDP).

Add freight, customs, and import duties to get the total landed cost. Production time is not delivery time, so confirm both.

6. Start With a Trial Order

Order a few prototypes or a short batch first. Judge part quality, response speed, and on-time delivery. Agree in writing how rejected parts will be handled.

For production programs, visit the factory or hire a third-party inspection company to audit it before the first large order.

Red Flags

• Refuses or delays a video tour of the shop floor
• ISO certificate not found in the issuing body’s database
• No FAI for new parts
• No written policy for rejected parts
• Cannot say which factory will make your parts