Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely fulfilling a duty; it is a passionate pursuit fueled by the artful craftsmanship and the intricate science of precision manufacturing. Our unparalleled expertise radiates as a beacon in the sphere of high-end component fabrication, lighting the way to exceptional accuracy and detail. We are at the forefront of innovating and manufacturing revolutionary intelligent automation equipment. Our state-of-the-art solutions address the needs of various sectors, effectively serving a breadth of applications, including:
- Medical and Biotech: Delivering superbly crafted high-precision components and groundbreaking solutions for advanced medical devices, maintaining the utmost quality standards.
- Semiconductors: Bolstering chip production and its related machinery by delivering essential core components vital to the industry's triumph.
- New Energy: Driving the dynamic and responsible development of pioneering energy equipment, promoting sustainable technological innovation.
- Automotive: Supplying crucial components that propel innovation within the automotive realm, supporting the growth 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, ensuring unrivaled precision and exceptional 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.
- 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, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we employ an exhaustive and meticulous examination process for each raw material entering our warehouse, ensuring only the highest quality components for our Medical CNC Machining Parts. Our process includes a comprehensive evaluation of chemical compositions and a detailed inspection of physical properties. We insist on Certificates of Origin and stamped Declarations of Conformity from every supplier, underscoring our unwavering commitment to quality. This rigorous authentication ensures that all materials meet the pinnacle of integrity and purity, aligning seamlessly with our steadfast dedication to excellence in high-precision medical machining services.
Intensive In-Process Quality Assurance
In our precision machining operations at Shenzhen Donghui, each component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our stringent specifications for Medical CNC Machining Parts. Our diligent and ongoing inspection protocol is expertly designed to intercept potential defects at their inception, preventing any non-conformity from advancing to later stages. This vigilant strategy is critical to minimizing the risk of substandard goods, securing superior quality at every production phase, and maintaining unwavering excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our strategic First Article Inspection (FAI) process at Shenzhen Donghui is a cornerstone of our quality assurance strategy, essential for identifying and resolving potential production challenges early on. This proactive approach effectively prevents issues from escalating during mass production. The thoroughness and precision of our FAI process are vital in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This commitment to excellence permeates every facet of our production cycle, ensuring we not only meet but exceed the most stringent quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from Shenzhen Donghui, it is subjected to a meticulous and thorough final inspection process. This comprehensive evaluation rigorously assesses dimensions, visual appearance, and performance, in addition to any customer-specific requirements for our Medical CNC Machining Parts. Our inspection process is a testament to our relentless pursuit of excellence, ensuring every part from our facility meets our exacting standards. We are dedicated to delivering only the highest quality products to our valued customers, upholding a reputation for excellence and unyielding reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., since its full establishment in 2009 and roots tracing back to 2002, has proudly grown into a beacon of high-precision component machining expertise. Over the past two decades, we have passionately pursued groundbreaking innovations, carving out a unique niche as trailblazers in the world of precision engineering. Our commitment to pushing the boundaries of technology and quality has solidified our position as industry leaders, setting new benchmarks in precision and reliability. We have cultivated an extraordinary pool of technical expertise, bolstering our sterling market reputation and establishing us as the frontrunners in our field. Our unparalleled precision medical machining services consistently achieve incredibly tight tolerances and flawless surface finishes, earning us the esteemed trust of the medical sector and positioning us as the go-to choice for high-stakes applications.
With four strategically located production bases in the vibrant and industrious cities of Shenzhen and Guiyang, powered by an empowered and skilled workforce exceeding 400 dedicated employees, Donghui has meticulously crafted a powerful and vertically integrated industry chain. This seamlessly intertwines cutting-edge research, state-of-the-art production, and timely delivery, enabling us to consistently surpass the diverse expectations of our valued clients with unmatched efficiency and extraordinary quality. Our advanced facilities are perfectly equipped to take on even the most complex and demanding machining challenges, continually reinforcing our legacy of 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)