Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we stand as a beacon of perfection in the industry. Our relentless pursuit of excellence in precision manufacturing is a testament to our commitment to both art and science. By marrying craftsmanship with cutting-edge technology, we have carved a niche for ourselves, delivering unmatched quality in every component crafted. Our mastery in precision engineering is second to none, leading the charge in superior component manufacturing. With every project, we demonstrate our exceptional skill and finesse, setting a standard of excellence that is unparalleled. As trailblazers of innovation, we define the standards for designing and delivering revolutionary intelligent automation equipment. Our leading-edge solutions are seamlessly integrated into a myriad of industries, meeting diverse needs in numerous applications, including:
- Medical and Biotech: Delivering impeccably engineered, ultra-high-precision components and transformative solutions tailored for cutting-edge medical technologies.
- Semiconductors: Enhancing chip fabrication and related machinery with vital, critical components that propel unparalleled advancement and efficiency.
- New Energy: Catalyzing the innovative and sustainable development of next-gen energy equipment, shaping the future of sustainable energy solutions.
- Automotive: Providing crucial components that lead innovation in the automotive sector, driving the evolution of intelligent and electric vehicles.
Main Products
- Our precision-crafted non-standard customized components are the epitome of excellence. Serving critical sectors like medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endures 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 collection of over 300 top-tier machines, the pinnacle of innovation and sophistication in the industry. This vast array of cutting-edge technology ensures that we remain a leader in precision and adaptability. By constantly pioneering groundbreaking solutions, we set the benchmark for industry excellence, driving forward with unmatched precision and superior quality. Top-Tier Branded Machinery These cutting-edge machines form the backbone of our precision-focused manufacturing process, establishing the fundamental infrastructure that underpins our rigorous production standards. Equipped with state-of-the-art tools, we continuously refine our manufacturing strategies to consistently achieve remarkable results. Harnessing our high-caliber machines, we skillfully tackle complex and demanding machining tasks across diverse industries, achieving unparalleled precision and efficiency. Our extensive capabilities ensure adherence to the highest quality standards, while delivering bespoke solutions meticulously crafted to exceed the unique needs of our esteemed clients, surpassing even their highest expectations.
- With a distinguished 20-year legacy, we draw on a wealth of manufacturing experience seamlessly integrated with in-depth technical expertise and process knowledge. This harmonious blend ensures not only superior quality but also pioneering innovation. We are committed to consistently delivering extraordinary products that exceed expectations and establish new benchmarks 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 exceed industry norms by employing unparalleled methodologies. We craft the pinnacle of quality benchmarks, elevating standards with each step.
Every raw material arriving at our state-of-the-art warehouse undergoes a rigorous evaluation process, establishing a new benchmark in quality assurance. Our exhaustive approach includes an in-depth analysis of chemical composition and precise assessment of physical properties. We mandate our suppliers to provide a Certificate of Origin and a verified Declaration of Conformity, ensuring that only premium-grade materials are utilized in our advanced medical machining services. This meticulous validation process protects the integrity and purity of materials, aligning perfectly with our unwavering dedication to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unmatched attention to detail drive our pursuit of perfection with unwavering focus.
Throughout the intricate machining journey, every component is meticulously examined to ensure that dimensions and tolerances align precisely with our rigorous specifications. This ongoing inspection protocol is essential for proactively identifying and intercepting potential defects, preventing the advancement of any non-conforming parts. With this diligent strategy, we significantly reduce the risk of producing inferior goods, ensuring that exceptional quality is consistently maintained throughout the entire production process.
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 serves as the cornerstone of our quality strategy, skillfully identifying and resolving potential production challenges from the start. This proactive approach ensures issues are mitigated before they evolve into mass production hurdles. This all-encompassing FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards, embodying our unwavering commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unparalleled quality and precision.
Before any product leaves our facility, it undergoes an extensive and comprehensive final inspection. This rigorous evaluation includes dimensions, visual aesthetics, performance, and customer-specific requirements. This meticulous inspection highlights our steadfast dedication to quality, ensuring each part delivered meets our exacting standards, thereby providing our esteemed customers with superior 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)