Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. Where time-honored craftsmanship intersects with cutting-edge innovation, we herald a new era of unparalleled excellence. Our relentless quest for perfection ensures that every creation is a tribute to impeccable artistry. By harnessing the latest technologies and adhering to our unwavering standards of quality, we distinguish ourselves, delivering exceptional, intricately engineered components that represent the pinnacle of precision and artistry. With unmatched expertise in precision engineering, we set the benchmark for component excellence. Our remarkable agility and sophisticated finesse ensure unparalleled quality across every facet of our operations. As pioneers and leaders in the industry, we consistently deliver superior craftsmanship that defines excellence. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, expertly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the vanguard of advanced medical technologies. We set unprecedented standards of excellence in the field, driving forward innovation and quality.
- SemiconductorsWith our critical and essential components, we are at the forefront of driving advancements in chip fabrication and related equipment. Our efforts significantly boost efficiency and innovation within the semiconductor industry, pioneering progress.
- New EnergyWe are pivotal in the innovative and sustainable evolution of next-generation energy equipment. Our contributions are crucial in shaping the future landscape of energy solutions, advancing a more sustainable tomorrow.
- AutomotiveProviding indispensable components, we lead innovation within the automotive industry. Our contributions advance the development of intelligent and electric vehicles, fundamentally shaping the future of mobility with excellence.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an extraordinary fleet of more than 300 of the industry's most sophisticated and advanced machinery units. This extensive and innovative assembly propels us to the forefront of innovation, ensuring our leadership in adaptability and precision. By continuously delivering groundbreaking solutions, we set the industry standard for excellence, perpetually aiming for unparalleled precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units are the cornerstone of our precision-centric manufacturing operations, forming the essential infrastructure that upholds our steadfast production standards. With these state-of-the-art tools, we perpetually refine and elevate our manufacturing processes to achieve consistently superior results. With our top-tier machines, we flawlessly execute intricate and challenging machining tasks across a multitude of industries, achieving unmatched precision and efficiency. Our expansive capabilities ensure unwavering adherence to the most stringent quality standards while providing bespoke customization that not only fulfills but consistently surpasses the unique expectations of our valued clients, exceeding their highest aspirations.
- Celebrating an esteemed 20-year legacy, we draw from an abundant reservoir of manufacturing expertise intricately woven with profound technical knowledge and process mastery. This seamless synergy ensures not only superior quality but also revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and redefine industry standards of 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
Refined and Meticulous Incoming Material Inspection: In the ever-evolving realm of innovation, where precision is paramount, we elevate industry norms with our unparalleled inspection methodologies. Our dedication to excellence sets the stage for world-class quality benchmarks, establishing groundbreaking standards that permeate every phase of our production journey. Each meticulously crafted step reflects our unwavering commitment, ensuring that our materials are as sophisticated as the advanced methods we employ.
Our state-of-the-art warehouse subjects every incoming raw material to a rigorous evaluation process, setting unprecedented benchmarks in quality assurance. Our comprehensive approach includes detailed chemical composition analysis and stringent assessments of physical properties. Suppliers must provide a Certificate of Origin along with a verified Declaration of Conformity to guarantee that only superior materials are employed in our cutting-edge medical machining services. This meticulous validation process strengthens the integrity of materials, aligning perfectly with our steadfast devotion to unparalleled quality.
Inflexible In-Process Quality Control: With an unwavering commitment to meticulous precision and vigilant scrutiny, we relentlessly pursue perfection. This rigorous process guarantees that our standard of excellence is continually achieved-and frequently exceeded-throughout every phase of production.
Within the intricate machining process, each component is subjected to thorough scrutiny to ensure dimensions and tolerances precisely meet our stringent specifications. This proactive inspection protocol is vital in detecting and intercepting potential defects, effectively preventing non-conforming parts from advancing. Our diligent approach significantly mitigates the production of substandard goods, consistently ensuring exceptional quality throughout all stages of production.
Proactive and Holistic First Article Inspection (FAI): Our preventative framework lays the foundation for exceptional excellence, showcasing unparalleled precision and comprehensiveness.
The First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before they evolve into production obstacles. Our exhaustive FAI process is crucial in minimizing quality risks, consistently guaranteeing that our products reach the pinnacle of standards and exemplifying our unwavering dedication to excellence across the production landscape.
Thorough and Detailed Final Inspection: The ultimate custodian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product leaves our facility, it undergoes an exhaustive and detailed final inspection. This rigorous evaluation encompasses assessments of dimensions, visual appeal, performance, and adherence to customer-specific requirements. This comprehensive inspection highlights our unwavering dedication to quality, ensuring that every delivered part meets our stringent standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of innovation in the refined realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with an esteemed reputation for unparalleled excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)