Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment is fueled not merely by obligation, but by a deep-seated passion for the art and science of precision manufacturing. We are dedicated to delivering unmatched excellence in every aspect of our production processes. Our unparalleled expertise acts as a beacon in the sophisticated world of high-end component fabrication, guiding us to achieve extraordinary levels of meticulous precision and craftsmanship. We are at the forefront of innovation, pioneering the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions address a vast range of industries and applications, effectively encompassing:
- Medical and Biotech: Delivering intricately designed high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards and enhancing healthcare innovations.
- Semiconductors: Boosting chip manufacturing and its vital equipment by supplying essential core components that are indispensable for the industry's technological advancements.
- New Energy: Committed to propelling the dynamic and sustainable evolution of pioneering energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Delivering essential components that invigorate innovation within the automotive realm, supporting the transformation towards smart and electric vehicles.
Main Products
- Our forte lies in crafting non-standard customized components, significantly serving the medical, automation, semiconductor, and automotive sectors, all while assuring unparalleled precision and premium quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, each a testament to cutting-edge innovation and superior engineering.This extensive capability empowers us to masterfully address a comprehensive spectrum of equipment categories. We are committed to skillfully fulfilling the intricate machining needs of diverse industries with unmatched precision and efficiency, ensuring every project is executed to perfection.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. Our dedication guarantees exceptional quality and forward-thinking innovation, positioning us as pioneers in the realm of precision engineering, constantly setting new standards of excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Model Incoming Material Examination
Every piece of raw material entering the threshold of our warehouse undergoes an exhaustive and rigorous examination process. This meticulous scrutiny encompasses an in-depth analysis of both chemical composition and physical properties. We steadfastly uphold our profound commitment to unparalleled quality by mandating that every supplier furnishes a verifiable Certificate of Origin along with a stamped Declaration of Conformity. Through this, we ensure that only the most superior materials are incorporated into our high-precision medical machining services. Our scrupulous authentication process stands as a bulwark, guaranteeing that these materials align with the utmost standards of integrity and purity, seamlessly embodying our unwavering dedication to quality.
Rigorous In-Process Quality Assurance
Amid our intricate and precision-driven machining operations, each component is meticulously scrutinized to ensure dimensions and tolerances not only align with but surpass our stringent specifications. Our diligent and continual inspection protocol is tactically crafted to detect and intercept potential defects at the earliest opportunity, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant methodology is integral in mitigating the risk of subpar goods, ensuring superior quality at every phase of production, and maintaining a hallmark of excellence throughout the entirety of the process.
Comprehensive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a bedrock strategy, pivotal in identifying and resolving potential production challenges at their inception. This proactive methodology effectively thwarts issues from escalating into mass production. The exhaustive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently ascend to the zenith of industry standards. This unwavering dedication to excellence infuses every facet of the production cycle, guaranteeing that we not only meet but exceed the highest quality benchmarks.
Thorough Final Inspection with Precision
Before any product departs from our premises, it is subjected to a meticulous and comprehensive final inspection. This thorough process rigorously assesses dimensions, visual aesthetics, performance, and any tailored customer-specific criteria. Our all-encompassing inspection routine is a testament to our relentless pursuit of quality, ensuring that every component dispatched from our facility adheres to our stringent standards. We remain unwavering in our resolve to deliver only the utmost quality products to our esteemed customers, thereby upholding our legacy of 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. 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)