Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely fulfilling a duty; we are propelled by an ardent passion for the art and intricate science of precision manufacturing. Our unparalleled proficiency stands as a beacon in the domain of high-end component fabrication, illuminating the journey to exquisite precision. We are at the forefront of the evolution and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly address a vast array of industries, effectively meeting diverse needs, including:
- Medical and Biotech: Delivering expertly crafted high-precision components and cutting-edge solutions for the latest medical devices, maintaining the utmost in quality standards.
- Semiconductors: Enhancing chip manufacturing and its associated machinery by providing essential core components pivotal to the industry's triumph.
- New Energy: Leading the charge in the dynamic and sustainable growth of advanced energy equipment, bolstering eco-conscious technological advancement.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the progression of intelligent and electric vehicles.
Main Products
- We specialize in non-standard, bespoke components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence: Unwavering Commitment to Quality and Precision Our operations proudly showcase an extraordinary assortment of over 300 advanced renowned machines, each a marvel of innovation in its own right.This comprehensive suite of technology enables us to expertly address an expansive spectrum of equipment categories, empowering us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich heritage encompassing two decades of excellence, we draw upon vast production experience combined with substantial technical and process expertise, assuring exceptional quality and forward-thinking innovation, distinguishing us as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Superior Craftsmanship
High-Precision Inspection Equipment: Rigorous Standards for Unrivaled Quality Assurance
Quality Ensurance
Outstanding Examination of Incoming Materials
Every raw material that enters our warehouse undergoes a thorough and rigorous evaluation process. Our detailed analyses encompass a study of the chemical composition alongside a comprehensive inspection of physical properties. In our unwavering drive for quality, we mandate that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures only the highest quality materials are chosen for our precision medical machining services. With our strict authentication procedures, we guarantee these materials conform to the highest standards of integrity and purity, fully aligning with our strong quality commitment.
Rigorous In-Process Quality Assurance
Within our sophisticated and precise machining operations, every component is meticulously inspected to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent, ongoing inspection regimen is strategically crafted to detect potential defects at an early stage, effectively preventing any non-conforming parts from advancing to subsequent phases. This vigilant strategy is crucial in reducing the risk of inferior goods, securing superior quality at every production phase, and ensuring consistent excellence throughout the entire process.
Strategic Implementation of First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy critical for the early identification and resolution of potential production challenges. This proactive approach prevents complications from escalating into mass production. The in-depth and precise nature of our FAI process is vital in reducing quality risks, ensuring our products consistently reach the highest standards. This commitment to excellence infiltrates every aspect of our production cycle, guaranteeing that we meet and surpass the most stringent quality benchmarks.
Thorough and Meticulous Final Inspection
Prior to leaving our facility, every product is subjected to a detailed and exhaustive final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection procedure underscores our relentless dedication to quality, ensuring every part departing from our facility meets our stringent standards. We are committed to delivering only the highest quality products to our esteemed customers, preserving our reputation for excellence and trustworthiness.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining 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)