Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion to excellence isn't just a duty-it's a passionate pursuit driven by a deep love for the intricate art and rigorous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the realm of elite component fabrication, leading the way to exacting precision and superior craftsmanship. We are at the forefront of pioneering the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to an extensive array of industries, effectively addressing a broad spectrum of applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, consistently upholding the pinnacle of quality standards.
- Semiconductors: Revolutionizing chip production and its related equipment by providing critical core components that are indispensable to the industry's triumph.
- New Energy: Propelling the robust and sustainable progress of innovative energy equipment, advancing the frontier of eco-friendly technology development.
- Automotive: Supplying essential components that drive innovation in the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard, customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and superior quality in every piece.
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 extraordinary capability empowers us to skillfully and precisely fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning over two decades, we leverage extensive production experience combined with substantial technical and process prowess. This guarantees exceptional quality and 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 Incoming Material Examination
Every raw material gracing our warehouse is subjected to an exhaustive and meticulous examination process, ensuring only the elite make the cut. Our scrupulous analyses delve into the chemical composition and conduct a thorough inspection of physical properties. Upholding an unwavering commitment to excellence, we mandate that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This guarantees that only the crème de la crème materials are handpicked for our high-precision medical machining services. Our stringent authentication process ensures these materials meet pristine standards of integrity and purity, seamlessly aligning with our steadfast dedication to quality.
Rigorous In-Process Quality Assurance
In our intricate and precision-driven machining operations, every component is meticulously scrutinized to not merely meet but surpass our exacting specifications. Our diligent and continuous inspection protocol is astutely designed to catch potential defects at their inception, thus averting non-conforming parts from advancing further. This vigilant approach is crucial in mitigating the risk of substandard goods, ensuring peak quality at each phase of production, and sustaining excellence throughout the entire process.
Pivotal First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal for identifying and resolving potential production challenges at their inception. This proactive approach is instrumental in preventing issues from proliferating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products unfailingly rise to the zenith of standards. This dedication to excellence pervades every aspect of the production cycle, guaranteeing that we meet and exceed the loftiest quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product departs our premises, it undergoes a meticulous and exhaustive final inspection. This process rigorously evaluates dimensions, visual appeal, performance, and any customer-specific stipulations. Our comprehensive inspection process stands as a testament to our relentless pursuit of quality, assuring that every part dispatched from our facility meets our exacting standards. We are unwavering in delivering nothing short of the highest quality products to our esteemed customers, thereby upholding our reputation for excellence and reliability.
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. Our journey has been marked by relentless pursuit of excellence and a commitment to pushing the boundaries of what's possible in the realm of high-precision manufacturing. 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. Our flawless execution and attention to minute details resonate with our customers' needs, ensuring that we remain at the forefront of technological advancements in this highly specialized field.
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. Our comprehensive approach guarantees that each step of the process is meticulously managed to deliver unparalleled results that our clients trust and value.
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)