Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends beyond mere duty; it is driven by an ardent passion for the sophisticated artistry and exacting science of precision manufacturing. Our unparalleled expertise shines as a beacon in the sphere of high-end component fabrication, illuminating each step with meticulous precision. We are at the forefront in developing and producing innovative intelligent automation equipment. Our advanced solutions serve a vast array of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering exquisitely engineered high-precision components and groundbreaking solutions for cutting-edge medical devices, upholding the highest quality standards.
- Semiconductors: Bolstering chip production and its related equipment by providing critical core components vital to the industry's success.
- New Energy: Actively contributing to the vigorous and sustainable development of innovative energy equipment, advancing eco-friendly technological progress.
- Automotive: Supplying essential components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 top-tier renowned machines, renowned for their cutting-edge capabilities, 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, ensuring each task is executed to perfection and exceeding industry standards.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. These strengths guarantee exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our commitment to excellence and constant evolution positions us as leaders in crafting superior precision engineering solutions.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Examination
Every single raw material that enters our warehouse is subjected to an exhaustive and exacting scrutiny process. Our meticulous evaluation covers the chemical composition as well as a detailed inspection of the physical attributes. We demand excellence by requiring every supplier to furnish a Certificate of Origin accompanied by a stamped Declaration of Conformity. This rigorous procedure ensures that only the crème de la crème of materials is selected for our high-precision medical machining services. Our stringent authentication procedures guarantee that these materials align with the pinnacle of standards for integrity and purity, perfectly embodying our unwavering dedication to quality.
Rigorous In-Process Quality Control
Within the realm of our intricate and precise machining operations, each component is meticulously inspected to ensure that its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent and continuous inspection protocol is ingeniously crafted to detect potential defects at the earliest stages, thereby averting the progression of non-conforming parts to subsequent phases. This vigilant strategy is crucial in mitigating the risk of substandard goods, guaranteeing top-tier quality at every stage of production, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a pivotal strategy, crucial for the early identification and resolution of potential production hindrances. This proactive approach is instrumental in preventing issues from escalating into full-scale production. The exhaustive and precise nature of our FAI process is paramount in curtailing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence resonates through every facet of the production cycle, ensuring we surpass even the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous evaluation covers dimensions, visual aesthetics, performance, and any customer-specific prerequisites. Our exhaustive inspection process stands as a testament to our relentless pursuit of quality, ensuring that every part leaving our premises adheres to our stringent standards. We are unwavering in our commitment to dispatch only the finest quality products to our valued customers, reinforcing our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of expertise and innovation in high-precision basic component machining. With an unwavering dedication to pioneering advancements over the past two decades, we have immersed ourselves in cutting-edge technical research, establishing our reputation as unrivaled trailblazers in precision engineering. At Shenzhen Donghui, we have cultivated an exceptional depth of technical expertise, earning a stellar and well-deserved market reputation that distinguishes us as leaders in the industry. Our unparalleled capabilities in precision medical machining services consistently achieve extraordinarily tight tolerances and flawless surface finishes, making us the unequivocal choice for excellence in the medical sector.
With four strategically positioned production bases nestled in the dynamic hubs of Shenzhen and Guiyang, bolstered by a dedicated workforce exceeding 400 skilled professionals, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to meet and exceed the diverse needs of our clientele with remarkable efficiency and unsurpassed quality. Our state-of-the-art facilities are designed to undertake the most intricate and challenging machining tasks, consistently reinforcing our prestigious 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)