Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend the ordinary with our unwavering dedication to precision manufacturing. We offer not just a service, but a fusion of passion and expertise in the intricate art and precise science that defines our industry. Our unmatched expertise radiates in the field of high-end component manufacturing, leading the way to unparalleled precision and outstanding excellence. At the forefront of innovation, we lead in the design and production of revolutionary intelligent automation equipment. Our cutting-edge solutions serve a wide spectrum of industries, seamlessly meeting diverse applications and requirements, including:
- Medical and Biotech: We deliver meticulously crafted, high-precision components and state-of-the-art solutions for advanced medical devices, strictly adhering to the highest quality standards.
- Semiconductors: We enhance chip manufacturing and related machinery by providing indispensable core components vital for the semiconductor industry's dynamic advancement.
- New Energy: We actively participate in the sustainable and vibrant development of cutting-edge energy equipment, leading the charge in environmentally-friendly technological progress.
- Automotive: We supply essential components that fuel innovation within the automotive sector, supporting the evolution of intelligent and electric vehicles.
Main Products
- We are leaders in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unrivaled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary collection of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This expansive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and unparalleled efficiency.
- With a rich history spanning two decades, we expertly leverage our vast production experience, seamlessly combined with significant technical and process expertise. This guarantees exceptional quality and forward-thinking innovation, positioning us as pioneering leaders in precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Material Examination: The Pinnacle of Integrity and Purity
Within the esteemed confines of our warehouse, every raw material undergoes a thorough and meticulous journey of quality examination, ensuring no detail is overlooked. Our rigorous evaluations delve into the intricate chemical and physical attributes, guaranteeing only the finest quality materials are selected. We uphold stringent documentation requirements, demanding a Certificate of Origin and a stamped Declaration of Conformity from each supplier, reflecting our unwavering commitment to excellence. Only materials meeting our highest standards of integrity and purity are chosen for our high-precision medical machining services. Our authentication process acts as a vigilant guardian, ensuring unwavering quality at every step, solidifying our reputation for unparalleled excellence.
Rigorous In-Process Quality Assurance: Precision in Every Detail, Unmatched in Excellence
Throughout our seamless machining operations, each component is meticulously scrutinized to ensure dimensions and tolerances not only meet but exceed our stringent standards. Our continuous inspection protocol is expertly crafted to identify potential defects at their inception, effectively preventing non-conforming parts from advancing. This vigilant approach is foundational in minimizing the risks of substandard goods, guaranteeing superior quality at every phase of production and upholding our tradition of excellence throughout the entire manufacturing process.
Proactive First Article Inspection (FAI): Trailblazing the Path to Perfection
Our First Article Inspection (FAI) is a strategic cornerstone, characterized by unparalleled foresight, swiftly identifying and resolving potential production challenges from the outset. This proactive methodology serves as an impenetrable shield against the escalation of issues into mass production setbacks. The thoroughness and precision of our FAI process are vital in mitigating quality risks, ensuring our products consistently reach the pinnacle of excellence. Our dedication to perfection is intricately woven into every phase of production, ensuring our standards consistently exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: Achieving Uncompromising Perfection
Before any product leaves our facility, it undergoes a final inspection characterized by meticulousness and thoroughness. This rigorous process examines every aspect, including dimensions, visual appeal, performance, and any customer-specific requirements, with unmatched precision. Our comprehensive inspection is not merely a testament but a pledge to our relentless commitment to quality, ensuring every part leaving our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our valued customers sustains our reputation for unmatched excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its foundational roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a remarkable exemplar of excellence in the realm of high-precision basic component machining. With an unyielding commitment to revolutionary innovation over the past two decades, we have delved deeply into technical research, solidifying our pioneering status in precision engineering. We have amassed a tremendous wealth of technical expertise, crafting a stellar market reputation that distinctly elevates us as an industry leader. Our unmatched prowess in precision medical machining services empowers us to consistently achieve incredibly tight tolerances and pristine surface finishes, establishing us as the premier choice in the medical sector.
With four strategically situated production bases in the dynamic and bustling centers of Shenzhen and Guiyang, powered by a devoted team of over 400 exceptionally skilled employees, Donghui has crafted a robust, vertically integrated industry chain. This chain seamlessly combines research and development, production, and delivery, ensuring we meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to tackle the most intricate and demanding machining tasks, maintaining our esteemed reputation for excellence and trailblazing 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)