Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a responsibility; it is an inspired passion for the artful mastery and exacting science of precision manufacturing. Our unparalleled expertise acts as a beacon in the sphere of high-end component creation, illuminating the roadmap to perfect precision and excellence. We are at the forefront of the innovation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve myriad industries, efficiently meeting varied applications and needs, including:
- Medical and Biotech: Offering precisely engineered, high-precision components and cutting-edge solutions for advanced medical devices, maintaining the highest standards of quality excellence.
- Semiconductors: Bolstering chip production and its related machinery by delivering essential core components pivotal to the industry's thriving success.
- New Energy: Actively participating in the dynamic and sustainable development of cutting-edge energy equipment, promoting eco-friendly technological innovations.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the progression of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, broadly serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched 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: A Commitment to Purity and Integrity
Each raw material that enters the sacred domain of our warehouse is subject to an exhaustive and stringent examination process that leaves no stone unturned. In our meticulous analyses, we delve deep, evaluating the chemical composition and conducting a thorough inspection of physical properties. Our unwavering commitment to quality shines through as we demand every supplier present a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the crème de la crème of materials are honored with a place in our high-precision medical machining services. Our rigorous authentication process stands as a stalwart guardian, ensuring these materials meet the zenith of integrity and purity, perfectly aligning with our indomitable commitment to quality.
Intensive In-Process Quality Assurance: Precision at Every Step
Amidst the intricate dance of our precise machining operations, every component is under the watchful eye of meticulous scrutiny, ensuring its dimensions and tolerances do not merely meet but transcend our exacting specifications. Our diligent, continuous inspection protocol is a masterpiece of strategic design, intercepting potential defects at the dawn of their existence, thereby halting non-conforming parts from advancing to subsequent stages. This vigilant approach is a cornerstone in minimizing the risk of substandard goods, guaranteeing superior quality at every phase of production, and maintaining excellence throughout the entire symphony of the process.
Strategic First Article Inspection (FAI): Anticipating Perfection
Our First Article Inspection (FAI) is not just a process; it's a foundational strategy of foresight, crucial for identifying and resolving potential production challenges at their nascent stage. This proactive approach acts as a shield, preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently rise to the summit of excellence. This unwavering dedication to excellence infuses every facet of the production cycle, guaranteeing that we soar beyond the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: The Pinnacle of Perfection
Before any product makes its grand exit from our facility, it undergoes a final inspection that is nothing short of meticulous and thorough. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements with an unyielding precision. Our comprehensive inspection is more than a testament; it is a vow to our relentless commitment to quality, ensuring that every part dispatched from our facility is a beacon of our exacting standards. We stand resolute in delivering only the highest quality products to our cherished customers, upholding our reputation for unmatched excellence and unwavering 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. 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)