Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to excellence goes beyond a simple duty. It is fueled by an unstoppable passion to achieve perfection in both the intricate art and sophisticated science that defines our manufacturing expertise. Our unparalleled expertise illuminates the path to unrivaled precision, becoming a guiding light in the exclusive realm of elite component manufacturing. At the forefront of innovation, we set the gold standard in the design and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a wide spectrum of industries, precisely meeting varied needs across multiple applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for the cutting-edge realm of next-generation medical devices.
- Semiconductors: Enhancing chip production and related essential equipment with indispensable core components that drive forward technological advancements.
- New Energy: Playing a crucial role in the innovative and sustainable advancement of breakthrough energy equipment.
- Automotive: Supplying key components that fuel innovation within the automotive industry, empowering the progression of smart and electric vehicles.
Main Products
- Meticulously crafted non-standard customized components, serving critical sectors such as medical, automation, semiconductor, and automotive industries with outstanding excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by an extraordinary fleet comprising over 300 of the industry's most sophisticated machinery units. This exceptional collection enables us to uphold a vast and versatile array of equipment categories, positioning us at the forefront of innovation and adaptability in diverse industrial environments. These top-tier branded machinery units form the backbone of our precision-driven manufacturing process, allowing us to expertly manage the complex and challenging machining demands from a multitude of industries with outstanding precision and efficiency. Our expansive capabilities ensure compliance with the highest quality standards and deliver tailor-made customization meticulously designed to fulfill the unique requirements of our esteemed clientele.
- With an impressive 20-year heritage, we possess a substantial reservoir of manufacturing experience, intricately blended with deep technical expertise and robust process strengths. This guarantees the provision of superior quality and pioneering innovation. Our longstanding expertise enables us to consistently produce remarkable products that not only meet but exceed expectations, establishing new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Exceeding Industry Benchmarks
Every raw material that enters our state-of-the-art warehouse is subject to a rigorous and comprehensive evaluation process, setting a new gold standard in quality assurance. Our meticulous approach includes an in-depth analysis of the material's chemical composition and a detailed examination of its physical attributes. Our unwavering commitment to excellence mandates that each supplier provides a Certificate of Origin, along with a stamped Declaration of Conformity. This ensures that only the highest-grade materials are chosen for our high-precision medical machining services. Such rigorous authentication guarantees the integrity and purity of materials, consistently meeting our elevated standards of quality and precision.
Rigorous In-Process Quality Control: Striving for Perfection
Throughout the intricate machining process, every component is meticulously scrutinized to ensure that its dimensions and tolerances precisely match our stringent specifications. This diligent and continuous inspection protocol proactively intercepts potential defects, preventing any non-conforming parts from advancing. Through this vigilant approach, we significantly reduce the risk of producing large quantities of substandard goods, thereby ensuring superior quality is maintained at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) is the cornerstone of our quality strategy, skillfully identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are prevented from escalating into mass production. This comprehensive and precise FAI process is crucial for minimizing quality risks, ensuring that our products consistently reach the highest standards and reflecting our unwavering dedication to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Quality Guardian
Before any product leaves our facility, it undergoes a detailed and meticulous final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, and performance, alongside any customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring that every part dispatched meets our exacting standards, delivering only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Founded on a visionary blueprint in 2002 and officially established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has consistently demonstrated an unwavering passion for high-precision component machining. With two decades of relentless innovation and dedication, we have carved a niche as pioneers in the precision engineering industry. Our continuous pursuit of technical excellence has elevated us as industry leaders, setting new standards and inspiring innovation across the sector. We bring an unparalleled depth of technical expertise to the table, establishing ourselves as market front-runners with an enviable reputation for unmatched excellence. Our superior capabilities in precision medical machining services are renowned for achieving the most stringent tolerances and impeccable surface finishes. This distinction makes us the preferred partner in the medical industry, where precision and dependability are not just valued, but essential.
With four strategic production facilities, located in the dynamic hubs of Shenzhen and Guiyang, supported by a robust team of over 400 highly proficient employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery, consistently surpassing our clients' diverse needs with remarkable efficiency and superior quality. Our cutting-edge facilities are adeptly equipped to handle the most complex and demanding machining challenges, reinforcing our esteemed reputation for brilliance and 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)