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 establish the gold standard for component excellence. Our remarkable agility and sophisticated finesse ensure unparalleled quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. 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, masterfully 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, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation in the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we lead innovation in the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components are the epitome of 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 Commanding the forefront of technological advancement, our operations are powered by an impressive array of over 300 of the industry's most sophisticated machines. This vast, state-of-the-art fleet ensures our preeminence in innovation and versatility, constantly delivering pioneering solutions. We set the gold standard for industrial excellence, relentlessly pursuing unmatched precision and exceptional quality. These Top-Tier Branded Our groundbreaking machinery units form the backbone of our precision-driven manufacturing approach, establishing a robust foundation for our consistent production excellence. Utilizing these cutting-edge tools, we perpetually refine and optimize our manufacturing processes to consistently yield superb outcomes. With our elite machines, we skillfully manage intricate and demanding machining tasks across a multitude of industries, achieving extraordinary precision and efficacy. Our extensive capabilities ensure unwavering compliance with the highest quality standards while offering tailor-made customization that surpasses even the most ambitious expectations of our valued clients, consistently exceeding their highest hopes.
- Honoring a distinguished 20-year legacy, we leverage a rich reservoir of manufacturing expertise seamlessly integrated with profound technical knowledge and process proficiency. This impeccable synergy assures not only superior quality but also revolutionary innovation. We empower ourselves to perpetually deliver remarkable products that transcend expectations and redefine industry 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
Exquisite and Exacting Incoming Material Inspection: In today's rapidly evolving landscape, where innovation and precision reign supreme, we transcend mere industry norms. Our methodologies are not just adaptive; they are revolutionary, setting new standards of excellence that echo throughout each phase of our production. By laying down an unparalleled foundation for quality, we establish benchmarks that are not only met but consistently surpassed.
Every raw material entering our state-of-the-art facilities undergoes a rigorous evaluation process, setting an unprecedented benchmark in quality assurance. Our comprehensive methodology includes thorough chemical composition analysis and exhaustive physical property assessments. Suppliers are mandated to provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring only the finest materials are utilized in our advanced medical machining services. This meticulous validation fortifies material integrity and purity, in perfect harmony with our unwavering commitment to delivering superior quality.
Uncompromising In-Process Quality Control: Driven by an unyielding attention to detail and ceaseless vigilance, we pursue perfection with steadfast dedication. This meticulous process guarantees that not only are our standards of excellence consistently upheld, but they are frequently exceeded.
Throughout the complex machining process, each component is subjected to thorough scrutiny to ensure dimensions and tolerances are in precise alignment with our strict specifications. This proactive inspection protocol is crucial in detecting and intercepting potential defects, thwarting any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, ensuring exceptional quality is upheld at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework lays the groundwork for immaculate excellence, showcasing unparalleled precision and thoroughness in our processes.
The First Article Inspection (FAI) process is a pivotal element of our quality strategy, expertly pinpointing and resolving potential production challenges from the onset. This proactive stance ensures issues are addressed before they evolve into production hurdles. Our exhaustive FAI process is vital in minimizing quality risks, guaranteeing our products consistently reach the highest standards and reflecting our unwavering commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: Serving as the ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection in every detail.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and any customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring that every delivered part not only meets but exceeds our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Since our illustrious establishment in 2009, with a foundational legacy dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of mastery in the art of high-precision component machining. Our esteemed journey is marked by an unwavering dedication to the intricate craft and the exact science of engineering, spanning more than two decades of tireless innovation and exceptional accuracy. We have indelibly inscribed our name as trailblazers in precision engineering, consistently pushing the boundaries of technical research and setting revolutionary benchmarks in the industry, consistently exceeding expectations with our remarkable innovation and unparalleled quality. We have painstakingly honed an extraordinary level of technical expertise, positioning ourselves as industry leaders with a distinguished reputation for unparalleled excellence. Our proficiency in precision medical machining services is unmatched, consistently meeting the most stringent tolerances and delivering flawless surface finishes. This unwavering commitment solidifies our status as the premier choice in the medical sector. Our precision and unwavering reliability have earned us lasting trust and respect, making us the preeminent name for superior machining solutions.
With four strategically located production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, bolstered by an impressive team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly connects leading-edge research and development, exceptional production, and flawless delivery. Our operations ensure that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly designed to handle the most complex and demanding machining challenges, reinforcing our esteemed reputation for excellence and pioneering 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)