Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication surpasses mere commitment. We offer a harmonious blend of passion and expertise in the delicate art and exacting science of precision manufacturing. Our unparalleled expertise shines brilliantly in the realm of high-end component manufacturing, illuminating the path to perfect precision and exceptional excellence. Pioneering innovation, we are leaders in the design and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions serve an expansive array of industries, seamlessly meeting diverse applications and requirements, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and state-of-the-art solutions for advanced medical devices, adhering strictly to the pinnacle of quality standards.
- Semiconductors: Elevating chip manufacturing and related machinery by supplying indispensable core components crucial for the semiconductor industry's dynamic growth.
- New Energy: Actively engaging in the sustainable and vibrant advancement of cutting-edge energy equipment, championing environmentally-friendly technological progress.
- Automotive: Delivering essential components that drive innovation within the automotive sector, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior 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.
- 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 warehouse, every raw material embarks on a meticulous expedition of quality examination, where no detail is left unchecked. Our rigorous evaluations delve into both chemical essence and physical attributes, ensuring only the finest quality. We demand stringent documentation, requiring a Certificate of Origin and a stamped Declaration of Conformity from every supplier, reflecting our unwavering quest for excellence. Only materials meeting our pinnacle standards of integrity and purity are selected for our high-precision medical machining services. Our authentication process acts as a vigilant guardian, assuring unwavering quality at every juncture.
Rigorous In-Process Quality Assurance: Precision in Every Detail
Amidst our seamless machining operations, each component is subjected to meticulous scrutiny, ensuring dimensions and tolerances meet and exceed our high standards. Our continuous inspection protocol is an expertly crafted system, adept at capturing potential defects at their inception, effectively preventing non-conforming parts. This vigilant approach is foundational in reducing risks of substandard goods, ensuring superior quality at every production phase and maintaining our tradition of excellence throughout the entire production 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 very beginning. This proactive methodology serves as a robust shield against the escalation of problems into mass production challenges. The thoroughness and precision of our FAI process are vital in mitigating quality risks, ensuring our products consistently reach the pinnacle of excellence. This dedication to perfection is woven into every phase of the production cycle, ensuring our standards consistently exceed the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: Achieving Perfection
Before any product leaves our facility, it undergoes a final inspection that epitomizes meticulousness and thoroughness. This rigorous process examines dimensions, visual appeal, performance, and any customer-specific requirements with unparalleled 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)