Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend conventional boundaries with our fervent dedication to precision manufacturing. Our unique blend of passion and unrivaled expertise crafts a symphony of artistry and science, setting new benchmarks in excellence. In the prestigious domain of high-end component manufacturing, our unmatched expertise illuminates the path to achieving ultimate precision and extraordinary excellence. As pioneers of innovation, we lead the charge in designing and producing trailblazing intelligent automation equipment. Our state-of-the-art solutions cater to a wide variety of industries, meeting a plethora of applications and demands, including:
- Medical and Biotech: Providing intricately designed, high-precision components and advanced solutions for cutting-edge medical devices, adhering to the highest echelons of quality standards.
- Semiconductors: Enhancing chip manufacturing and associated machinery with indispensable core components vital for the continuous growth of the semiconductor industry.
- New Energy: Proactively contributing to the sustainable development of innovative energy equipment, leading the charge in environmentally-friendly technological advancements.
- Automotive: Supplying pivotal components that fuel innovation within the automotive industry, supporting the transformation towards intelligent and electric vehicles.
Main Products
- We specialize in crafting non-standard customized components, widely serving the medical, automation, semiconductor, and automotive sectors, consistently delivering unparalleled precision and top-tier quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary collection of over 300 renowned machines, empowering us to masterfully address a comprehensive spectrum of equipment categories. This expansive capability enables us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and unparalleled efficiency.
- Boasting a rich history that spans two decades, we expertly leverage our vast production experience, seamlessly combined with substantial technical and process prowess. This guarantees not only exceptional quality but also forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Material Examination: Upholding Integrity and Purity
Within the esteemed confines of our immaculate warehouse, each raw material embarks on a meticulous journey of quality examination, ensuring no detail is overlooked. Our rigorous evaluations delve deeply into both the chemical essence and physical attributes, ensuring only the supreme quality. We insist on stringent documentation, requiring a Certificate of Origin and a stamped Declaration of Conformity from every supplier, reflecting our unwavering commitment to excellence. Only materials meeting our pinnacle standards of integrity and purity are chosen for our high-precision medical machining services. Our authentication process acts as a vigilant guardian, assuring unparalleled quality at every stage.
Rigorous In-Process Quality Assurance: Precision in Every Detail
Amidst our seamless machining operations, each component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our rigorous standards. Our continuous inspection protocol is an expertly crafted system, adept at capturing potential defects at their inception, effectively preventing non-conforming parts from progressing. This vigilant approach is the cornerstone in mitigating risks of substandard goods, ensuring superior quality at every phase of production and upholding our tradition of excellence throughout the entire process.
Proactive First Article Inspection (FAI): Pioneering Perfection
Our First Article Inspection (FAI) is a strategic cornerstone characterized by foresight, swiftly identifying and resolving potential production issues at their inception. This proactive methodology serves as a robust barrier against the escalation of problems into mass production challenges. The thoroughness and precision of our FAI process are essential in mitigating quality risks, ensuring our products consistently reach the pinnacle of excellence. This dedication to perfection is intricately woven into every phase of the production cycle, ensuring our standards consistently surpass the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: Achieving Perfection
Before any product leaves our facility, it undergoes a final inspection epitomizing meticulousness and thoroughness. This rigorous process examines 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 maintains our reputation for unmatched 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)