Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately dedicated to perfecting precision manufacturing. Where time-honored craftsmanship merges with cutting-edge innovation, we usher in a new era of unrivaled excellence. Our unwavering pursuit of perfection ensures that every creation is a testament to impeccable artistry. By utilizing the latest technologies and adhering to our steadfast quality standards, we set ourselves apart, delivering exceptional, intricately engineered components that epitomize the pinnacle of precision and artistry. With unparalleled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee unmatched quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. As pioneers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions integrate seamlessly 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 forefront of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we propel 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 Our operations are powered by an extraordinary fleet of over 300 of the industry's most sophisticated and advanced machinery units. This expansive and innovative assembly catapults us to the pinnacle of technological innovation, securing our leadership in adaptability and precision. By consistently delivering groundbreaking solutions, we define the industry standard for excellence, ceaselessly pursuing unparalleled precision and exceptional quality in every endeavor. These Top-Tier Branded Our pioneering machinery units serve as the bedrock of our precision-centric manufacturing operations, forming the essential infrastructure that upholds our relentless production standards. With these cutting-edge tools, we relentlessly enhance and elevate our manufacturing processes to achieve consistently superior results, embodying excellence in every detail. With our top-tier machines, we flawlessly execute intricate and demanding machining tasks across a myriad of industries, achieving unmatched precision and efficiency. Our extensive capabilities ensure steadfast adherence to the most stringent quality standards while providing bespoke customization that not only meets but consistently surpasses the unique expectations of our esteemed clients, elevating their aspirations to new heights.
- Celebrating an esteemed 20-year legacy, we draw from a vast reservoir of manufacturing expertise intricately woven with profound technical knowledge and mastery over processes. This seamless synergy ensures not only superior quality but also revolutionary innovation, empowering us to consistently deliver extraordinary products that surpass expectations and redefine the industry's 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
Exquisite and Exacting Incoming Material Inspection: In the dynamic arena of technological advancement, precision reigns supreme. We surpass industry norms with unmatched methodologies, proudly laying the groundwork for exceptional quality benchmarks. Our revolutionary standards impact every phase of our production journey. This unwavering commitment to excellence reverberates through each step, ensuring our materials are as polished as our processes.
Every raw material that crosses the threshold of our state-of-the-art warehouse undergoes a rigorous evaluation that establishes a new pinnacle in quality assurance. Our comprehensive approach includes meticulous chemical composition analysis and stringent assessments of physical properties. Suppliers are required to provide a Certificate of Origin, accompanied by a verified Declaration of Conformity, ensuring that only the finest materials are utilized in our cutting-edge medical machining services. This rigorous validation process reinforces the integrity of materials, aligning seamlessly with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: With an unyielding commitment to meticulous detail and relentless scrutiny, we pursue perfection with steadfast dedication. This rigorous process ensures our standard of excellence is consistently achieved-and often exceeded-through every phase of production.
Throughout the intricate machining process, each component is subjected to exhaustive scrutiny, ensuring dimensions and tolerances are precisely aligned with our exacting specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, effectively preventing non-conforming parts from progressing. Through this diligent approach, we significantly mitigate the risk of producing substandard goods, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of unparalleled excellence, exemplifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is a fundamental element of our quality strategy, expertly identifying and addressing potential production challenges from the outset. This anticipatory approach ensures that issues are resolved before escalating into production obstacles. Our comprehensive FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of unmatched quality and precision, ensuring the delivery of perfection.
Before any product departs our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection highlights our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, providing our valued customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the prestigious year of 2009, building on our legacy from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of excellence in the specialized realm of high-precision component machining. Our remarkable journey is defined by an unwavering zeal for the intricate art and meticulous science of engineering, spanning over two decades of relentless innovation and remarkable precision. We have etched our name as vanguards in precision engineering, consistently pushing the boundaries of technical research and setting revolutionary standards in the industry, continually surpassing expectations with our groundbreaking innovation and unparalleled quality. We have meticulously cultivated an extraordinary level of technical expertise, establishing ourselves as market leaders, renowned for our unmatched excellence. Our expertise in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This commitment solidifies our position as the preferred partner in the medical sector. Our precision and steadfast reliability have garnered enduring trust and admiration, making us the premier choice for superior machining solutions.
With four strategically located production facilities, nestled in the dynamic and thriving hubs of Shenzhen and Guiyang, and backed by a formidable team of over 400 highly skilled experts, Donghui has masterfully built a comprehensive, vertically integrated industry chain. This seamless chain connects cutting-edge research and development, superior production quality, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and demanding machining challenges, enhancing our esteemed 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)