Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that stand 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 assembly of over 300 of the most advanced and sophisticated machinery units in the industry. This vast and varied collection of cutting-edge equipment ensures that we consistently remain at the pinnacle of innovation and adaptability. By continually delivering pioneering solutions, we set the standard for industry excellence, spearheading efforts to achieve unmatched precision and superior quality. These Top-Tier Branded Our cutting-edge machinery units form the backbone of our precision-focused manufacturing processes, providing an essential infrastructure that upholds our stringent production standards. With these state-of-the-art tools, we refine and enhance our manufacturing strategies to consistently deliver outstanding results. Harnessing our high-caliber machines, we skillfully execute complex and demanding machining requirements across a wide range of industries, achieving unparalleled precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards, while delivering personalized customizations meticulously designed to not only meet but surpass the unique needs of our esteemed clients, exceeding even their highest expectations.
- With a distinguished 20-year legacy, we draw from a deep reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process knowledge. This harmonious blend guarantees not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new standards of excellence within 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 cutting edge of innovation and precision, we transcend industry expectations with unrivaled methodologies. Crafting the pinnacle of quality benchmarks, we are redefining standards at every juncture.
Every raw material that enters our state-of-the-art warehouse is subjected to rigorous evaluation, establishing a new paradigm in quality assurance. Our exhaustive approach encompasses in-depth chemical composition analysis and precise physical property assessments. We mandate that our suppliers furnish a Certificate of Origin and a verified Declaration of Conformity, ensuring the use of only top-tier materials in our cutting-edge medical machining services. This meticulous validation process secures the integrity and purity of materials, aligning seamlessly with our unwavering commitment to supreme quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unmatched attention to detail orchestrate our quest for perfection with unwavering focus.
Throughout the intricate machining journey, each component undergoes meticulous examination, ensuring dimensions and tolerances adhere precisely to our stringent specifications. This ongoing inspection protocol is crucial in proactively identifying and intercepting potential defects, halting the progression of any non-conforming parts. Through this diligent strategy, we significantly diminish 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 lays the foundation for impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the onset. This proactive approach ensures issues are mitigated before they escalate into mass production hurdles. Our comprehensive FAI process is vital in minimizing quality risks, ensuring our products consistently achieve 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 departs our facility, it undergoes a thorough and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly traces its pioneering roots back to 2002. We emerge as a distinguished beacon in high-precision component machining. For over two decades, our relentless pursuit of innovation and precision has been fueled by a profound passion for the art and science of engineering. We expertly carve a niche in precision engineering, consistently challenging technical research boundaries and setting unparalleled industry benchmarks. We have honed an exceptional level of technical prowess, distinguishing ourselves as market leaders with a prestigious reputation for excellence. Our unmatched expertise in precision medical machining services adheres to the strictest tolerances, consistently delivering flawless surface finishes. This cements our position as the premier choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration.
With four strategically positioned production bases, in the dynamic and thriving hubs of Shenzhen and Guiyang, backed by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously crafted a vertically integrated industry chain. This seamless connection from research and development to top-tier production and impeccable delivery ensures we meet and exceed our clients' diverse needs with remarkable efficiency and exceptional quality. Our state-of-the-art facilities are equipped to handle the most intricate and challenging machining tasks, reinforcing our prestigious reputation for excellence and innovative breakthroughs.
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)