Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment isn't just a duty; it's a heartfelt zeal for the artful mastery and scientific precision of manufacturing at its finest. Our unrivaled expertise shines brightly as a beacon in the high-end component fabrication industry, charting the course towards unparalleled precision and excellence. We are at the forefront of pioneering intelligent automation equipment development and production. Our avant-garde solutions span a vast array of industries, expertly addressing a diverse spectrum of applications, including:
- Medical and Biotech: Delivering exquisitely crafted, high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Empowering the semiconductor industry by providing indispensable core components, vital for the success of chip production and its associated equipment.
- New Energy: Spearheading the sustainable and dynamic progression of innovative energy equipment, championing eco-conscious technological advancements.
- Automotive: Supplying essential components that drive innovation in the automotive industry, supporting the rise of intelligent and electric vehicles.
Main Products
- We excel in the specialization of non-standard customized components, diligently serving the medical, automation, semiconductor, and automotive sectors, consistently delivering unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. Our machine fleet stands as a testament to our commitment to innovation, quality, and technology, ensuring that every product we craft is a masterpiece of engineering excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This sets us apart as pioneers in the realm of precision engineering, where our dedication to advancement and quality continuously propels us toward new frontiers, leading the way as trusted experts in the field.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to quality begins the moment raw materials enter our warehouse. Through a rigorous examination process, each material undergoes detailed scrutiny to assess its chemical composition and physical attributes. Requiring a Certificate of Origin and a stamped Declaration of Conformity from every supplier, we meticulously ensure only the finest materials are chosen for our Superior Medical Machining Parts. This comprehensive authentication guarantees that materials not only meet but excel in standards of integrity and purity, reflecting our unwavering dedication to quality.
Intensive In-Process Quality Assurance
In the realm of intricate machining operations at Shenzhen Donghui Precision, every component is subject to meticulous scrutiny. Our relentless attention to dimensions and tolerances ensures they not only meet but surpass our demanding specifications. By adopting a proactive inspection protocol, we strategically detect and intercept defects at the earliest stages, effectively preventing non-conforming components from advancing in the production cycle. This vigilant process is vital in minimizing risks associated with substandard goods, thereby ensuring superior quality and sustained excellence throughout each production phase.
Strategic First Article Inspection (FAI)
Our strategy begins with the First Article Inspection (FAI) process, a cornerstone in recognizing and addressing potential production hurdles at the outset. This anticipatory strategy effectively averts issues from proliferating into mass production. With a comprehensive and precise FAI process, we rigorously minimize quality risks, consistently elevating our products to meet the loftiest standards. This unwavering pursuit of excellence pervades every production phase, solidifying our position at the forefront of quality assurance.
Meticulous Comprehensive Final Inspection
Before any product departs from Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., it endures a meticulous and comprehensive final inspection. This rigorous evaluation covers dimensions, visual integrity, performance, and any client-specific requirements. Our exhaustive inspection process underscores our relentless commitment to quality, ensuring each part dispatched is a paragon of our exacting standards. We are resolute in delivering only the finest quality products to our esteemed customers, reinforcing our reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become a paragon of expertise in high-precision component machining. With an unwavering commitment to pioneering innovation over the past two decades, we have immersed ourselves in technical research, establishing an illustrious reputation as trailblazers in precision engineering. We have cultivated an expansive reservoir of technical knowledge, earning a stellar market reputation that distinguishes us as leaders in the industry. Our exceptional capabilities in precision medical machining services are second to none, consistently achieving extraordinarily tight tolerances and flawless surface finishes, positioning us as the preferred choice within the medical sector.
With four strategically positioned production bases situated within the bustling centers of Shenzhen and Guiyang, backed by a dedicated team of over 400 skilled professionals, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly interlinks research and development, production, and delivery, ensuring we consistently meet and exceed our customers' diverse demands with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to handle the most complex and demanding machining tasks, upholding our reputation for excellence and groundbreaking innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)