Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just commit to excellence; we passionately and expertly weave it into every facet of our precision manufacturing artistry and meticulous science. Our unsurpassed expertise illuminates the high-end component manufacturing arena, steering the course to flawless precision and peerless excellence. As pioneers of innovation, we spearhead the design and production of revolutionary intelligent automation equipment. Our avant-garde solutions adeptly serve a vast spectrum of industries, effortlessly meeting an expansive range of applications and specifications, including:
- Medical and Biotech: Providing expertly crafted, high-precision components and cutting-edge solutions for advanced medical devices, upholding the highest quality standards.
- Semiconductors: Elevating chip manufacturing and associated machinery by supplying indispensable core components, essential to the bustling growth of the semiconductor sector.
- New Energy: Playing a dynamic role in the energetic and sustainable evolution of modern energy equipment, leading the charge in eco-friendly technological advancements.
- Automotive: Offering essential components that propel innovation within the automotive industry, supporting the rise of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 cutting-edge 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 dedication to excellence ensures that each component is crafted with the utmost care, meeting the highest standards of quality and innovation.
- 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 expertise sets us apart as pioneers in the realm of precision engineering, positioning us as leaders, not just participants, in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Immaculate Incoming Material Inspection: An Unyielding Commitment to Purity and Integrity
Every raw material gracing our distinguished warehouse embarks on a thorough examination journey, where no detail escapes scrutiny. Our rigorous analyses penetrate deeply into both chemical composition and physical properties, promising nothing short of the finest quality. We steadfastly require a Certificate of Origin along with a stamped Declaration of Conformity from each supplier, underscoring our relentless drive for excellence. Only the supreme materials, achieving the apex of purity and integrity, earn a place in our high-precision medical machining services. Our authentication process remains an ever-watchful sentinel, safeguarding unwavering quality at every juncture.
Comprehensive In-Process Quality Assurance: Precision in Every Detail
Throughout the seamless progression of our precision machining operations, every component undergoes meticulous scrutiny to ensure dimensions and tolerances exceed our elevated specifications. Our continual inspection protocol is an exquisitely crafted masterpiece, adept at detecting potential defects at inception, preventing non-conforming parts from advancing. This vigilant strategy forms the backbone of risk reduction for substandard goods, safeguarding exceptional quality at each production phase and maintaining our unwavering standard of excellence throughout the entire orchestration of processes.
Proactive First Article Inspection (FAI): Foreseeing Perfection
Our First Article Inspection (FAI) stands as a strategic pillar of foresight, adeptly identifying and resolving potential production hurdles at inception. This proactive methodology serves as a formidable shield against issues that could escalate into widespread production dilemmas. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products incessantly reach the pinnacle of excellence. This dedication to perfection is seamlessly woven into every phase of the production cycle, ensuring our standards consistently surpass the highest quality benchmarks.
Thorough Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Prior to any product's departure from our facility, it undergoes a final inspection marked by unmatched meticulousness and thoroughness. This rigorous process meticulously examines dimensions, aesthetic appeal, performance, and any customer-specific requirements with unparalleled precision. Our comprehensive inspection is more than a declaration; it is a testament to our unwavering pursuit of quality, ensuring each part leaving our facility is a shining beacon of our exacting standards. Our steadfast commitment to delivering only the highest quality products to our treasured customers upholds our esteemed reputation for unrivaled excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of excellence in the world of high-precision basic component machining. With an unwavering dedication to groundbreaking innovation over the past two decades, we have immersed ourselves in technical research, cementing our status as pioneers in precision engineering. We have garnered an exceptional wealth of technical expertise, building a stellar market reputation that distinguishes us as an industry leader. Our unparalleled capabilities in precision medical machining services allow us to consistently achieve incredibly tight tolerances and flawless surface finishes, making us the foremost choice in the medical sector.
With four strategically positioned production bases in the vibrant hubs of Shenzhen and Guiyang, driven by a dedicated force of over 400 highly skilled employees, Donghui has forged a strong, vertically integrated industry chain. This chain seamlessly blends research and development, production, and delivery, ensuring we meet and exceed the diverse needs of our clients with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and demanding machining tasks, maintaining our esteemed reputation for excellence and pioneering 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)