Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embody a commitment to excellence that elevates our work to an art form. Our passionate pursuit of perfection fuels our remarkable achievements in the intricate craft and cutting-edge science of manufacturing innovations. Our unmatched expertise paves the path to exceptional precision, serving as a beacon in the prestigious arena of high-end component manufacturing. Leading the way in innovation, we set the standard for excellence in the creation of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, adeptly catering to a myriad of requirements with precise applications that include:
- Medical and Biotech: Delivering meticulously crafted, ultra-precise components along with innovative solutions, shaping the future of medical technology with precision and care.
- Semiconductors: Augmenting chip production and pivotal equipment with essential core components that are the backbone of the industry.
- New Energy: Playing a crucial role in the sustainable and innovative evolution of groundbreaking energy equipment.
- Automotive: Providing indispensable components that fuel innovation in the automotive industry, powering the progress of intelligent and electric vehicles.
Main Products
- Ingeniously crafted non-standard customized components, serving critical sectors such as medical, automation, semiconductor, and automotive industries with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our operations are bolstered by an impressive arsenal of over 300 top-tier machinery units. This elite collection not only sets a benchmark for industrial excellence but also empowers us to maintain a vast and diverse array of equipment, positioning us as a leader in innovation and adaptability across a multitude of industrial sectors. These top-tier branded machinery units are the very foundation of our precision-driven manufacturing prowess. Our extensive capabilities enable us to adeptly handle the multifaceted and demanding machining requirements of various industries with remarkable precision and efficiency. By adhering to the highest quality standards, we offer bespoke customization solutions, meticulously designed to cater to the distinct needs of our esteemed clients, continuously exceeding their expectations with each and every endeavor.
- With an illustrious 20-year legacy, Shenzhen Donghui boasts a wealth of manufacturing experience, seamlessly fused with extensive technical expertise and robust process capabilities. This perfect synergy ensures the delivery of superior quality and groundbreaking innovation. Our enduring proficiency allows us to consistently produce extraordinary products that not only fulfill but exceed expectations, setting unprecedented benchmarks in industry standards.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology to Deliver Unmatched Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistent Quality
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks
Within our state-of-the-art warehouse, each raw material is subjected to a meticulous and comprehensive evaluation, setting the gold standard in quality assurance. This thorough process involves an in-depth analysis of the chemical composition and an exhaustive examination of physical attributes. We demand excellence by requiring each supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity, ensuring only the finest materials are chosen for our high-precision medical machining services. This rigorous authentication process guarantees the integrity and purity of materials, consistently aligning with our elevated standards of quality and precision.
Rigorous In-Process Quality Control: Pursuing Perfection
Throughout the intricate machining process, every component is scrutinized with precision to ensure its dimensions and tolerances meet our exacting specifications. Our diligent inspection protocol continuously intercepts potential defects, preventing non-conforming parts from advancing further. This vigilant approach significantly reduces the risk of producing substandard goods, ensuring superior quality is maintained at every critical stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process is the cornerstone of our strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are prevented from escalating into mass production, securing a seamless flow of flawless production. Our comprehensive FAI process is essential for minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our steadfast dedication to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous evaluation encompasses dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection underscores our relentless commitment to quality, ensuring every part dispatched meets our stringent 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. Over the past two decades, through an unwavering commitment to innovation, we have emerged as trailblazers in precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging 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)