Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are committed to achieving excellence in every facet of our operations. Our dedication to precision manufacturing, both as an art and a science, means that we deliver flawless quality every time. Our commitment to quality craftsmanship and advanced technology truly distinguishes us, ensuring that every component we produce is nothing less than extraordinary. Our exceptional expertise positions us as leaders in precision engineering. We expertly navigate the world of top-tier component manufacturing with an unmatched level of skill and elegance, consistently ensuring superior outcomes with every project. As trailblazers of innovation, we set the standard in crafting and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions are seamlessly integrated across a diverse range of industries, meeting a myriad of needs in various applications such as:
- Medical and Biotech: We provide meticulously engineered, ultra-high-precision components alongside groundbreaking solutions, specifically tailored for the forefront of advanced medical technologies.
- Semiconductors: We enhance chip fabrication and related equipment with critical components that are essential for driving unmatched advancements and boosting efficiency.
- New Energy: We play a vital role in propelling the innovative and sustainable development of next-generation energy equipment, shaping the future landscape of energy solutions.
- Automotive: We provide pivotal components that lead innovation in the automotive industry, pushing forward the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components stand as a testament to our unrivaled excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by an impressive ensemble of more than 300 of the industry's most advanced and sophisticated machinery units. This extensive and diverse array of leading-edge equipment secures our position at the forefront of innovation and adaptability. By consistently delivering groundbreaking solutions, we not only uphold but set the industry benchmark for excellence, leading the charge in precision manufacturing and unparalleled quality. These Top-Tier Branded Our cutting-edge machinery units form the very foundation of our precision-oriented manufacturing process, serving as the vital backbone essential to maintaining our rigorous production standards. With our top-notch machines, we expertly manage complex and demanding machining requirements across various industries with extraordinary precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards, offering customized solutions meticulously crafted to not just meet but exceed the unique demands of our esteemed clients, consistently surpassing their loftiest expectations.
- With a distinguished 20-year legacy, we leverage an abundant wealth of manufacturing experience seamlessly integrated with extensive technical expertise and process mastery. This harmonious blend not only assures superior quality but also drives pioneering innovation. We continually empower ourselves to deliver extraordinary products that exceed expectations and set new industry benchmarks for excellence.
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: As vanguards in surpassing industry standards, we utilize unparalleled precision methodologies to forge the apex of quality benchmarks.
Every raw material journeying into our state-of-the-art warehouse undergoes a rigorous evaluation process, setting a revolutionary benchmark in industry quality assurance. Our holistic method encompasses thorough chemical composition analysis and a meticulous examination of physical properties. We insist our suppliers provide a Certificate of Origin alongside a verified Declaration of Conformity, ensuring that only the highest caliber materials are employed in our sophisticated medical machining services. This meticulous validation process safeguards the integrity and purity of materials, aligning seamlessly with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail fuel our relentless pursuit of perfection. Our dedication to excellence remains unblemished.
During the intricate machining process, every component undergoes meticulous scrutiny, ensuring dimensions and tolerances are perfectly aligned with our strict specifications. This continuous inspection protocol is essential for proactively identifying and intercepting potential defects, precluding the advancement of any non-conforming parts. By employing this diligent strategy, we substantially diminish the risk of producing inferior goods, thereby ensuring that exceptional quality is consistently upheld throughout each phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework stands as the foundation of unmatched precision and impeccable excellence.
Our First Article Inspection (FAI) process represents the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges at their inception. This proactive approach guarantees that issues are contained before escalating into significant production obstacles. This all-encompassing FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, epitomizing our unwavering commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate bastion of unparalleled quality and precision.
Before any product exits our facility, it undergoes an exhaustive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection epitomizes our steadfast dedication to quality, ensuring every part delivered meets our stringent standards, thereby providing our esteemed customers with the highest quality products available.
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)