Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment transcends mere duty; it is fueled by a deep-seated passion for the exquisite artistry and scientific rigor inherent in precision manufacturing. Our unparalleled expertise acts as a beacon in the sophisticated world of high-end component fabrication, illuminating the path to meticulous precision and craftsmanship. We are at the forefront of pioneering development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions span across multiple industries, adeptly addressing diverse applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, consistently upholding the highest standards of quality excellence.
- Semiconductors: Catalyzing the chip production process and its associated equipment by delivering essential core components that are pivotal to the industry's success.
- New Energy: Actively engaging in the robust and sustainable development of innovative energy equipment, propelling eco-friendly technological advancements.
- Automotive: Supplying critical components that drive innovation within the automotive sector, supporting the evolution of intelligent and electric vehicles.
Main Products
- We specialize in non-standard customized components, expertly catering to the medical, automation, semiconductor, and automotive industries, ensuring unrivaled precision and superior 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 unmatched capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring that every product not only meets but exceeds industry standards.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering, and guaranteeing that our clients always receive the best in cutting-edge solutions.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
To ensure uncompromising quality, every raw material that enters our warehouse is subjected to a comprehensive and rigorous evaluation process. Our meticulous analysis encompasses a detailed assessment of the chemical composition and a thorough inspection of the physical attributes. We demand a Certificate of Origin and a stamped Declaration of Conformity from every supplier, a practice that guarantees only top-tier materials are selected for our high-precision medical machining services. Our stringent verification process ensures these materials uphold the highest levels of integrity and purity, perfectly embodying our unwavering commitment to superior quality.
Intensive In-Process Quality Assurance
Throughout our precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocol is expertly crafted to detect and address potential defects early, preventing any non-conforming parts from advancing to subsequent production stages. This vigilant strategy is critical in minimizing the risk of substandard goods, ensuring outstanding quality at every production phase, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, crucial for early identification and resolution of potential production challenges. This proactive approach effectively prevents issues from escalating into mass production. The detailed and precise nature of our FAI process is pivotal in mitigating quality risks, ensuring our products consistently achieve the highest standards of excellence. This unwavering dedication to superior quality permeates every aspect of the production cycle, guaranteeing we consistently meet and exceed the highest benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs our facility, it is subjected to a meticulous and exhaustive final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and all customer-specific requirements. Our comprehensive inspection process exemplifies our relentless commitment to quality, ensuring every part dispatched from our facility meets our exacting standards. We are dedicated to delivering only the highest quality products to our esteemed customers, steadfastly upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2002 and officially established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has etched its name as a leader in high-precision basic component machining. Over the years, our steadfast commitment to advancement and innovation has propelled us to the forefront of the precision engineering sector, making significant strides and setting benchmarks in technical research and development. We have cultivated an unparalleled depth of technical knowledge, securing a formidable market reputation that distinguishes us as a true industry leader. Our mastery in precision medical machining services is second to none, consistently delivering exceptional products with incredibly tight tolerances and immaculate surface finishes. As a result, we are the go-to choice for precision and reliability in the medical sector.
With four strategically situated production bases nestled in the dynamic cities of Shenzhen and Guiyang, supported by a passionate team of over 400 dedicated employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery to cater to the varied requirements of our clients. We pride ourselves on providing outstanding efficiency and unparalleled quality. Our cutting-edge facilities are designed to tackle the most intricate and challenging machining tasks, maintaining our illustrious 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)