Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is fueled by an unwavering passion for the exquisite artistry and meticulous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the domain of high-end component fabrication, casting a brilliant light on the journey toward unrivaled precision. We are trailblazers in the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a vast array of industries, effectively meeting the needs of diverse applications, including:
- Medical and Biotech: Delivering expertly crafted high-precision components and pioneering solutions for cutting-edge medical devices, ensuring the highest quality standards.
- Semiconductors: Driving chip production and related equipment by providing essential core components that are fundamental to the industry's thriving success.
- New Energy: Committed to the dynamic and sustainable growth of innovative energy equipment, advancing eco-friendly technological evolution.
- Automotive: Supplying critical components that propel innovation within the automotive industry, fostering the development of smart and electric vehicles.
Main Products
- We are experts in non-standard customized components, deeply serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled 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, empowering us to expertly navigate a vast array of equipment categories. This incredible capability allows us to meet the intricate and diverse machining requirements of various industries with unmatched precision and efficiency, ensuring top-tier results in every project we undertake.
- With a rich history spanning two decades, we leverage a wealth of production experience combined with substantial technical prowess and innovative processes, ensuring exceptional quality and cutting-edge innovation. This sets us apart as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Superior Incoming Material Evaluation
Each raw material entering our state-of-the-art warehouse is meticulously subjected to a comprehensive and stringent examination process. Our detailed analyses encompass evaluating the precise chemical composition and conducting a thorough inspection of the robust physical properties. We maintain an unwavering dedication to quality by mandating that each supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This scrupulous process ensures that only the finest, most exceptional materials are chosen for utilization in our high-precision medical machining services. Our rigorous authentication guarantees that these materials meet the paramount standards of integrity and purity, seamlessly aligning with our steadfast pledge to excellence.
Rigorous In-Process Quality Supervision
Within our precise and intricate machining operations, each component is meticulously evaluated to ensure its dimensions and tolerances not only meet but surpass our exacting specifications. Our diligent and ongoing inspection protocol is strategically crafted to identify and intercept potential defects at the earliest stage, thus preventing non-conforming parts from advancing to subsequent phases. This vigilant approach is critical in reducing the risk of substandard goods, ensuring superior quality at every stage of production, and maintaining unparalleled excellence across the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a cornerstone strategy vital for identifying and resolving potential production challenges at an incipient phase. This proactive approach effectively prevents issues from escalating into mass production complications. The comprehensive and exacting nature of our FAI process is paramount in minimizing quality risks, ensuring our products consistently soar to the highest pinnacle of industry standards. This unwavering dedication to excellence infuses every facet of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product emerges from our facility, it is subject to a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection protocol stands as a testament to our relentless commitment to quality, ensuring that every part leaving our facility meets our exacting standards. We are unwavering in delivering only the pinnacle of quality products to our esteemed customers, fortifying our reputation for excellence and unrivaled 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 is marked by relentless pursuit of excellence, embracing cutting-edge technologies to stay ahead in the competitive landscape of 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 reputation is built on trust, reliability, and a commitment to perfection, ensuring each component we produce meets the highest standards of quality and performance.
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. We are proud to deliver precision and reliability through a seamless blend of advanced technology and expert craftsmanship.
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)