China leads the world in precision machining, with factories capable of delivering micron-level accuracy and large-scale production at competitive costs. The top CNC machining companies on this list represent the best of that standard.

They're all verified, certified, and trusted by global OEMs, and listed on one of the best CNC machining platforms online, Haizol. Each factory brings its own strengths, equipped with advanced multi-axis systems, strict quality control, and export-ready operations designed for efficiency and scale. 

 

Top 10 CNC Machining Companies in China for 2025 Summary

Factory Name	Year Established	Factory Size (m²)	Certifications	Best For
Suzhou Chen Shuo Yuan Machinery Co., Ltd.	2014	3,000-5,000	ISO 9001, ISO 13485	Semiconductor and medical precision parts
Foshan Zhengshang Precision Manufacturing Co., Ltd.	2024	1,000-3,000	ISO 9001, ISO 14001, ISO 45001	Small-diameter shafts and gears
Diode Machining Technology China Ltd.	2010	1,000-3,000	ISO 9001	CNC milling and multi-material machining
Wuxi Ruili Metal Products Co., Ltd.	2011	10,000-30,000	ISO 9001, IATF 16949	Automotive and industrial components
Shenzhen Xinwanda Metal Materials Co., Ltd.	2018	1,000-3,000	ISO 9001	Mold tooling and complex metal parts
Mingshengfa Intelligent Technology Co., Ltd.	2010	3,000-5,000	ISO 9001	CNC components and 3D printer structures
KinTec Machining Co., Ltd.	2012	5,000-10,000	ISO 9001, ISO 14001, IATF 16949	Aerospace, robotics, and automotive parts
YiRui Machinery Manufacturing Co., Ltd.	2015	1,000-3,000	ISO 9001 (TÜV Certified)	Automotive and control system components
Zhejiang Chuangji Machinery Technology Co., Ltd.	2016	3,000-5,000	ISO 9001, IATF 16949	Aluminium and magnesium alloy parts
Shanghai Wode Mechanical & Electronic Co., Ltd.	2008	10,000-30,000	ISO 9001	Large-scale fabrication and precision machining

 

Suzhou Chen Shuo Yuan Machinery Co., Ltd. - Best for Semiconductor and Medical Precision Parts

Specification	Details
Factory area	3,000-5,000 m²
Founded	2014
Employees	50+
Certifications	ISO 9001, ISO 13485
Equipments	Mazak 5-axis machining centers, Sodick wire EDM, TIG welding, grinding and sandblasting machines
Processes	CNC milling, turning, welding, vacuum system assembly, polishing, surface finishing

About Suzhou Chen Shuo Yuan Machinery Co., Ltd.

Founded in 2014, Suzhou Chen Shuo Yuan Machinery Co., Ltd. (CSY) operates in Suzhou, Jiangsu, producing precision metal components for semiconductor and medical industries. It focuses on high-accuracy machining and assembly for demanding production environments.

The 4,000 m² facility features Mazak 5-axis machining centres, Sodick EDM systems, and Panasonic TIG welding machines. Its in-house operations include welding, surface finishing, and quality testing for consistent part performance.

CSY achieves ±0.002 mm accuracy with Hexagon CMM systems and Shimadzu leak detection equipment. Certified under ISO 9001 and ISO 13485, it provides precision components that meet cleanroom and medical-grade standards. For more details, view the factory profile for Suzhou Chen Shuo Yuan Machinery Co., Ltd.

 

Foshan Zhengshang Precision Hardware Co., Ltd. - Best for Custom High-Precision Machining

Specification	Details
Factory area	1,000-3,000 m²
Founded	2024
Employees	1-50
Certifications	ISO 9001, ISO 14001, ISO 45001
Equipments	Tsugami Swiss-type lathes (Japan), hobbing machines, arc-tooth gear machines, CNC 3/4/5-axis systems
Processes	CNC turning, turn-milling, gear forming, hobbing, polishing, laser marking

About Foshan Zhengshang Precision Hardware Co., Ltd.

Established in 2024, Foshan Zhengshang Precision Manufacturing produces high-precision shafts and gears from its facility in Foshan, Guangdong. It focuses on compact, high-accuracy components for automotive and industrial systems.

The 3,000 m² factory runs Tsugami Swiss-type lathes with ±0.004 mm precision. Key operations include gear machining, bushing production, and multi-axis turn-milling for complex geometries.

Holding ISO 9001, ISO 14001, and ISO 45001 certifications, Zhengshang integrates design, R&D, and manufacturing under one system while following 5S management to ensure consistent, export-ready quality. For more details, view Foshan Zhengshang Precision Manufacturing Co., Ltd factory profile.

 

Diode Machining Technology China Limited - Best for Global Prototype and Production Machining

Specification	Details
Factory area	1,000-3,000 m²
Founded	2010
Employees	100-200
Certifications	ISO 9001, ISO 14001, ISO 45001
Equipments	Vertical machining centres, NC lathes, EDM units, grinders, polishing systems
Processes	CNC turning, milling, boring, drilling, welding, stamping, tubing, fabrication

About Diode Machining Technology China Limited

Diode Machining Technology China Ltd. (DM), founded in 2010 and based in Guangzhou, provides high-precision CNC machining and fabrication for global clients. It serves industries such as automotive, medical, and industrial equipment manufacturing.

Its facility runs vertical machining centres, NC lathes, and EDM machines capable of handling both prototype and high-volume orders. The company works with multiple materials, from stainless steel to zinc alloys.

DM employs a two-tier quality control system. An internal team manages process inspection, while an independent QC group verifies every shipment, ensuring consistent precision and compliance. Go to Diode Machining Technology China factory profile to get more details.

 

Wuxi Ruili Metal Products Co., Ltd. - Best for Automotive and High-Volume CNC Manufacturing

Specification	Details
Factory area	10,000-30,000 m²
Founded	2011
Employees	100+
Certifications	ISO 9001, IATF 16949
Equipments	Haas CNC machining centres (USA), Taiwan CNC systems, laser marking machines, tube bending and modification units
Processes	CNC turning, milling, tube forming, polishing, ultrasonic cleaning, bending, surface finishing

About Wuxi Ruili Metal Products Co., Ltd.

Wuxi Ruili Metal Products Co., Ltd., founded in 2011, runs a 15,000 m² advanced machining plant in Jiangsu. It focuses on CNC machining for automotive, industrial, and precision equipment manufacturers.

The factory integrates 4-axis and 5-axis machining centres, NC lathes, and laser marking tools for both volume and custom orders. Materials include aluminium, brass, stainless steel, carbon steel, and titanium.

With ISO 9001 and IATF 16949 certifications, Wuxi Ruili maintains strict quality standards through CMM inspection and corrosion testing, ensuring each part meets OEM-grade reliability. For more information, read Wuxi Ruili Metal Products factory profile.

 

Shenzhen Xinwanda Metal Materials Co., Ltd. - Best for High-Mix Metal Component Manufacturing

Specification	Details
Factory area	1,000-3,000 m²
Founded	2018
Employees	51-100
Certifications	ISO 9001
Equipments	30 CNC lathes, 18 machining centres, gantry machining systems, WEDM, grinders
Processes	CNC milling, turning, mold making, surface finishing

About Shenzhen Xinwanda Metal Materials Co., Ltd.

Shenzhen Xinwanda Metal Materials Co., Ltd. (Youpin Mold Technology) was founded in 2018 and operates a 3,000 m² machining and mold facility in Shenzhen. It produces precision components for sectors such as consumer electronics, semiconductors, and healthcare equipment.

The factory runs 30 CNC lathes, 18 vertical machining centres, and advanced gantry systems to achieve ±0.01 mm accuracy. Inspection uses Mitutoyo gauges, custom multi-axis measurement units, and coordinate measuring machines.

With ISO 9001 certification, Shenzhen Xinwanda manages projects from prototype to mass production, offering scalable capacity for both small-batch and long-term manufacturing needs. View Shenzhen Xinwanda Metal Materials factory profile for more details.

 

Mingshengfa Intelligent Technology Co., Ltd. - Best for Robotic and Automation Components

Specification	Details
Factory area	3,000-5,000 m²
Founded	2010
Employees	100
Certifications	No
Equipments	70 CNC machining centres, 15 four-axis machines, 3 five-axis units, 10 CNC lathes, 4 automatic tapping machines
Processes	CNC milling, lathe machining, 3D printing parts production, assembly

About Mingshengfa Intelligent Technology Co., Ltd.

Dongguan Mingshengfa Intelligent Technology Co., Ltd. has produced CNC components and 3D printer parts since 2010. Operating from a 5,000 m² plant in Dongguan, it runs 70 CNC machining centres and multiple four- and five-axis machines for complex precision parts.

The company maintains 0.005 mm accuracy through advanced 3D and projection testing systems. Its production model supports both prototypes and large orders in aluminium, stainless steel, and thermoplastic materials.

With a team of skilled engineers and technicians, Mingshengfa focuses on repeatable quality and scalable manufacturing for clients in fastener and additive industries. Read Mingshengfa Intelligent Technology factory profile for more details.

 

KinTec Machining Co., Ltd. - Best for Global CNC OEM Support

Specification	Details
Factory area	5,000-10,000 m²
Founded	2013
Employees	140
Certifications	ISO 9001, ISO 14001TS, IATF 16949
Equipments	2 DMG 5-axis machining centres, 14 Swiss turning machines, 15 CNC centres, 11 drilling and tapping machines
Processes	CNC turning, milling, die-casting, compound machining, finishing

About KinTec Machining Co., Ltd.

KinTec Machining Co., Ltd. has built a strong presence in Dongguan’s manufacturing sector, specialising in precision metal components for automotive, aerospace, robotics, and medical industries. Founded over 13 years ago, it runs an 8,000 m² facility with more than 60 CNC systems.

The company uses DMG 5-axis linkage machines and Tsugami Swiss turning technology to achieve ±0.01 mm precision in high-mix production. Core products include clamps, housings, and custom assemblies.

Holding ISO 9001, ISO 14001TS, and IATF 16949 certifications, KinTec delivers reliable, scalable machining solutions with full quality control from start to finish. 

 

YiRui Machinery Manufacturing Co., Ltd. - Best for Gear and Transmission Components

Specification	Details
Factory area	1,000-3,000 m²
Founded	2021
Employees	42
Certifications	ISO 9001 (TÜV)
Equipments	30+ CNC units including 10 four-axis machining centres, 2 horizontal centres, 21 CNC lathes
Processes	Machining, finishing, inspection, assembly

About YiRui Machinery Manufacturing Co., Ltd.

YiRui Machinery Manufacturing Co., Ltd., previously known as Ration, operates from a 2,000 m² machining facility in Ningbo. It serves global automotive, aerospace, and industrial clients with precision parts built under TÜV-certified ISO 9001 systems.

The plant houses vertical and horizontal CNCs, DOOSAN four-axis centres, and advanced wire-cutting machines handling parts up to 1.2 metres. Supported by HEXAGON CMMs and laser inspection tools, YiRui maintains consistent ±0.01 mm accuracy.

With a skilled team of veteran engineers, YiRui provides precision components such as valve bodies, flanges, and gear housings across both small-batch and mass-production orders. For more information, visit YiRui Machinery Manufacturing complete factory profile.

Zhejiang Chuangji Machinery Technology Co., Ltd. - Best for CNC Structural Components

Specification	Details
Factory area	3,000-5,000 m²
Founded	2016
Employees	32
Certifications	ISO 9001, IATF 16949
Equipments	20 stamping machines (80T-630T), Panasonic welding units, DMG and OKUMA machining centres
Processes	Stamping, die casting, welding, gravity and low-pressure casting

About Zhejiang Chuangji Machinery Technology Co., Ltd.

Established in 2016, Zhejiang Chuangji Machinery Technology Co., Ltd. operates in Wenzhou’s Tangxia Industrial Zone, specialising in aluminium and magnesium alloy machining and precision metal stamping.

The factory houses over 30 machines including DMG and OKUMA high-speed centres, and 20 presses rated from 80T to 630T. Its dedicated toolroom features ROLLI-ROLLI graphite systems and Sanfeng 3D inspection equipment.

Producing automotive plates, welded assemblies, and appliance parts, Chuangji maintains ISO and IATF 16949 certification. Precision holds within 0.01-0.02 mm, supported by 5S site management and rigorous quality processes. Contact Zhejiang Chuangji Machinery Technology for more details.

 

Shanghai Wode Mechanical & Electronic Co., Ltd. - Best for Integrated Mechanical-Electronic Assemblies

Specification	Details
Factory area	10,000-30,000 m²
Founded	2007
Employees	101-200
Certifications	ISO 9001 (2026-2027)
Equipments	14 CNC machines, 2 gantry machining centres, 4-axis and 3-axis systems
Processes	Machining, fabrication, welding, coating, finishing

About Shanghai Wode Mechanical & Electronic Co., Ltd.

Shanghai Wode Mechanical & Electronic Co., Ltd. has operated for over 15 years as a trusted precision machining manufacturer for industrial printing, semiconductor, medical, and nuclear applications.

The company runs a 10,000-30,000 m² facility in Shanghai and a 12,000 m² site in Huangshan, integrating material cutting, welding, heat treatment, machining, inspection, and coating under one system.

Wode’s advanced equipment includes gantry machining centres (2500 × 1600 mm), 4-axis units, and temperature-controlled inspection labs with Metris CMM. With ISO 9001 certification, the company maintains consistency and traceability across both small-batch precision parts and large-scale fabrication projects. Explore Shanghai Wode Mechanical & Electronic factory profile for full details.

 

What These Top CNC Companies Show About China’s Manufacturing

The ten companies listed above represent China’s best CNC machining companies by combining precision, reliability, and scale. But they’re just a small part of what’s available. On Haizol, you’ll find hundreds of verified CNC machining factories across China, each authenticated by our team for quality and compliance.

If you’re ready to source, submit a Request for Quotation (RFQ) and receive multiple quotes from verified suppliers within 24 hours.