Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are proud to adhere to the highest echelons of quality. Our steadfast devotion to the delicate artistry and meticulous science of precision manufacturing empowers us to deliver products that exemplify sheer perfection. It is our unwavering commitment to quality craftsmanship combined with cutting-edge technology that distinguishes us, ensuring unparalleled outcomes in every component we produce. Our unmatched expertise is at the forefront of precision engineering. We expertly navigate the esteemed field of superior component manufacturing with exceptional skill and polished sophistication, ensuring excellence with every endeavor. As trailblazers in innovation, we set the gold standard in the design and delivery of pioneering intelligent automation equipment. Our advanced solutions are intricately woven into a wide array of industries, meeting diverse demands in various applications including:
- Medical and Biotech: Offering flawlessly engineered, ultra-high-precision components, along with groundbreaking solutions, customized for the cutting edge of advanced medical technologies.
- Semiconductors: Enhancing chip fabrication and related equipment with indispensable, critical components that propel extraordinary progress and heightened efficiency.
- New Energy: Playing a pivotal role in expediting the innovative and sustainable evolution of next-generation energy equipment, crafting the future of energy solutions.
- Automotive: Providing essential components that catalyze innovation within the automotive industry, advancing the development of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components epitomize the apex of excellence. Serving crucial sectors such as the medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and unsurpassed quality that withstand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an impressive ensemble of over 300 of the industry's most advanced and sophisticated machinery. This expansive collection of cutting-edge technology ensures we hold a dominant position in innovation and adaptability. By consistently delivering pioneering solutions, we set the industry gold standard for excellence, spearheading efforts to achieve unmatched precision and top-tier quality. These Top-Tier Branded Our state-of-the-art machinery serves as the foundation of our precision-driven manufacturing, forming the essential support system for our stringent production standards. With these advanced tools, we refine our manufacturing strategies to consistently achieve outstanding quality and remarkable results. Using our high-caliber machines, we skillfully handle complex and demanding machining tasks across a wide array of industries, achieving unparalleled precision and efficiency. Our vast capabilities ensure strict adherence to top quality standards while offering personalized customization that not only meets but surpasses the unique needs of our esteemed clients, exceeding their highest expectations.
- With a distinguished 20-year legacy, we draw upon an extensive reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process know-how. This harmonious blend ensures not only superior quality but also groundbreaking innovation. We empower ourselves to deliver extraordinary products that not only surpass expectations but also establish new standards of excellence in the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: At the forefront of innovation and precision, we go beyond industry norms by employing unmatched methodologies. We are crafting the pinnacle of quality benchmarks, setting new standards with every step we take.
Every raw material that graces our state-of-the-art warehouse is subjected to a rigorous evaluation process, establishing a new standard in quality assurance. Our exhaustive procedures include in-depth chemical composition analysis and precise physical property assessment. We require our suppliers to provide a Certificate of Origin and a verified Declaration of Conformity, ensuring that only top-tier materials are utilized in our advanced medical machining services. This meticulous validation process safeguards the integrity and purity of materials, perfectly aligned with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unparalleled attention to detail steer our pursuit of perfection with unwavering focus.
Throughout the intricate machining journey, each component undergoes meticulous examination to ensure that dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial in proactively identifying and intercepting potential defects, preventing the advancement of any non-conforming parts. With this diligent strategy, we significantly mitigate the risk of producing inferior goods, guaranteeing that exceptional quality is consistently upheld across every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework forms the foundation of impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are mitigated before they escalate into mass production hurdles. This all-encompassing FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unparalleled quality and precision.
Before any product leaves our facility, it undergoes a thorough and comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring every part delivered meets our exacting standards, providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for the art and science of engineering, spans over two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry standards. We have cultivated an unparalleled level of technical expertise, setting ourselves apart as market leaders with an esteemed reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving centers of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to tackle the most complex and challenging machining tasks, 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)