Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a duty; it is fueled by an unwavering passion for the artistry and meticulous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the elite domain of high-end component creation, paving the way to unparalleled precision and excellence. We are trailblazers in the innovation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions span numerous industries, expertly meeting a wide array of applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest echelon of quality standards.
- Semiconductors: Enhancing chip production and its related equipment by delivering vital core components essential to the industry's triumph.
- New Energy: Actively participating in the vigorous and sustainable progress of groundbreaking energy equipment, promoting eco-friendly technological innovation.
- Automotive: Supplying crucial components that drive innovation within the automotive field, supporting the development of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and top-tier 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
Unparalleled Incoming Material Verification
Upon arrival, each raw material that graces our warehouse is meticulously evaluated through an exhaustive and challenging examination process. Our comprehensive analyses delve deep into assessing the chemical composition and executing a meticulous inspection of the physical properties. We are steadfast in our unyielding commitment to quality, mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This thorough process ensures the selection of only prime materials for our extraordinary, high-precision medical machining services. Our rigorous authentication protocol guarantees that these materials uphold the highest standards of integrity and purity, resonating with our enduring dedication to supreme quality.
Rigorous In-Process Quality Assurance
Within our precise machining operations, each component is scrupulously examined to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and ongoing inspection regime is strategically crafted to identify potential defects at the earliest stages, thereby preventing non-conforming parts from advancing further. This vigilant strategy is crucial in reducing the likelihood of substandard products, ensuring unparalleled quality at every production phase, and sustaining our commitment to excellence throughout the entire process.
Pioneering First Article Inspection (FAI)
Our First Article Inspection (FAI) process is an essential strategy that plays a critical role in identifying and addressing potential production issues early on. This proactive methodology prevents problems from escalating into mass production. The thorough and precise nature of our FAI process is crucial in mitigating quality risks, allowing our products to consistently reach the zenith of standards. Our unwavering dedication to excellence is embedded in every facet of the production cycle, ensuring that we consistently meet and surpass the highest quality benchmarks.
Meticulous Final Inspection Excellence
Prior to leaving our facility, every product undergoes a meticulous and comprehensive final inspection. This rigorous process meticulously evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements. Our all-encompassing inspection protocol is a testament to our unwavering commitment to quality, ensuring that each part dispatched from our facility meets our stringent standards. We are devoted to delivering only the finest quality products to our esteemed customers, upholding our reputation for excellence and reliability with unwavering dedication.
Packaging & Shipping
Company Profile
Since its vibrant inception in 2009, with its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of unparalleled expertise in the realm of high-precision basic component machining. Fueled by an unwavering commitment to innovation over the past two decades, we have engaged deeply in technical research, positioning ourselves as trailblazers in the art of precision engineering. We have cultivated an extensive reservoir of technical knowledge, which has garnered us an exemplary market reputation, distinguishing us as a vanguard in the industry. Our prowess in precision medical machining services is unparalleled, consistently achieving extraordinarily tight tolerances and flawless surface finishes, solidifying our status as the preferred partner in the medical sector.
With four strategically positioned production bases in the dynamic epicenters of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has sculpted a formidable and vertically integrated industry chain. This seamless chain artfully intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse demands of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are adept at handling the most intricate and challenging machining tasks, upholding our 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)