Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication to unmatched excellence transcends obligation, driven by a fervent passion for the refined art and complex science of precision manufacturing. Our unparalleled expertise illuminates the path to unrivaled accuracy, acting as a guiding light in the exclusive domain of elite component manufacturing. Pioneering the vanguard of innovation, we establish the benchmark for excellence in the design and manufacture of revolutionary intelligent automation equipment. Our state-of-the-art solutions are expertly integrated across a diverse array of industries, perfectly meeting a wide range of needs with precision. Our applications extend to areas such as:
- Medical and Biotech: Providing expertly engineered, high-precision components and pioneering solutions, primed for the cutting-edge era of medical devices.
- Semiconductors: Enhancing chip production and associated vital equipment with essential core components.
- New Energy: Contributing significantly to the innovative and sustainable progress of advanced energy equipment.
- Automotive: Supplying indispensable components that drive innovation in the automotive sector, supporting the transformation of smart and electric vehicles.
Main Products
- Skillfully crafted, non-standard custom components, servicing critical fields such as medical, automation, semiconductor, and automotive industries with extraordinary precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units are the cornerstone of our precision-focused manufacturing, empowering us to masterfully tackle the multifaceted and demanding machining requirements of an array of industries with exceptional precision and efficiency. Our extensive capabilities guarantee adherence to the pinnacle of quality standards and offer bespoke customization that is meticulously crafted to meet the unique needs of our distinguished clientele.
- With an illustrious 20-year legacy, we harbor a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but surpass expectations, setting 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: Setting New Industry Standards
In our cutting-edge warehouse, every single piece of raw material undergoes an exhaustive and comprehensive evaluation process, establishing the gold standard in quality assurance. This meticulous approach encompasses a detailed analysis of the chemical composition and an exhaustive examination of physical attributes. Our steadfast commitment to excellence mandates that each supplier must provide a Certificate of Origin, along with a stamped Declaration of Conformity. This rigorous authentication process guarantees that only the finest materials are selected for our high-precision medical machining services, ensuring the integrity and purity of materials consistently meet our exceptional standards of quality and precision.
Uncompromising In-Process Quality Control: Striving for Perfection
Throughout the intricate machining process, each component is meticulously inspected to ensure its dimensions and tolerances are in perfect alignment with our rigorous specifications. This diligent and continuous inspection protocol proactively identifies and eliminates potential defects, preventing any non-conforming parts from advancing further. Through this vigilant methodology, we significantly mitigate the risk of producing substantial quantities of substandard goods, thereby upholding superior quality at every critical stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Strategy for Excellence
Our First Article Inspection (FAI) process is the foundation of our strategy, adeptly identifying and resolving potential production challenges right from the start. This proactive approach ensures that any issues are contained before escalating into mass production, ensuring a seamless flow of flawless production. This comprehensive and precise FAI process is essential for minimizing quality risks, guaranteeing that our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence throughout the entire production cycle.
Extensive and Detailed Comprehensive Final Inspection: The Ultimate Quality Guardian
Before any product departs from our facility, it undergoes an extensive and meticulous final inspection process. This rigorous evaluation considers dimensions, visual appearance, and performance, alongside any customer-specific requirements. This thorough 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
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. Our company boasts an unparalleled level of technical expertise, solidifying our status as market leaders with an enviable reputation for excellence. Our exceptional proficiency in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction makes us the premier choice in the medical sector, where our precision and reliability are not only esteemed but considered indispensable.
With four strategically positioned production bases, nestled in the dynamic and thriving hubs of Shenzhen and Guiyang, and driven by an ambitious team of over 400 highly skilled and dedicated employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly interweaves research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are masterfully equipped to handle the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence 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)