Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we hold an unwavering commitment to mastering the art of precision manufacturing. In a realm where age-old craftsmanship meets innovative advancements, we usher in an era of unmatched excellence. Our pursuit of perfection guarantees that each product is a testament to exquisite artistry. By leveraging cutting-edge technologies and adhering to our steadfast quality standards, we set ourselves apart, offering intricately engineered components that stand as the zenith of precision and artistic craftsmanship. With unequaled proficiency in precision engineering, we set the industry benchmark for component excellence. Our agility and refined expertise ensure unparalleled quality in every aspect of our work, reinforcing our status as pioneers and industry leaders. As innovators at the forefront of progress, we redefine standards in the creation and deployment of state-of-the-art intelligent automation equipment. Our pioneering solutions seamlessly integrate into a vast array of industries, expertly tackling the distinctive challenges of diverse applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions spearhead the advancement of cutting-edge medical technologies, establishing new heights of excellence within the industry.
- SemiconductorsWith our vital components, we lead the charge in advancing chip fabrication and associated equipment, dramatically enhancing efficiency and fostering innovation in the semiconductor sector.
- New EnergyWe play a crucial role in the innovative and sustainable evolution of next-generation energy equipment, significantly shaping the future landscape of energy solutions.
- AutomotiveProviding essential components, we drive innovation within the automotive sector. Our contributions propel the advancement of intelligent and electric vehicles, shaping the future of transportation.
Main Products
- Our expertly crafted non-standard customized components are the epitome of excellence. Catering to critical sectors like medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endures over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an extraordinary fleet of over 300 of the industry's most advanced and sophisticated machinery units. This extensive and innovative assembly propels us to the forefront of industrial innovation, securing our leadership in adaptability and precision engineering. By consistently delivering groundbreaking solutions, we set the industry standard for excellence, always striving for unparalleled precision and exceptional quality in every venture. These Top-Tier Branded Our pioneering machinery units form the bedrock of our precision-centric manufacturing operations. They constitute the essential infrastructure that upholds our unwavering production standards. With these state-of-the-art tools, we constantly refine and elevate our manufacturing processes, achieving consistently superior results that lead the industry in quality. With our top-tier machines, we flawlessly execute intricate and challenging machining tasks across a diverse range of industries, achieving unmatched precision and efficiency. Our expansive capabilities ensure unwavering adherence to the most stringent quality standards while offering bespoke customization. This approach not only fulfills but consistently surpasses the unique expectations of our valued clients, exceeding their highest aspirations with remarkable consistency.
- Celebrating an esteemed 20-year legacy, we draw from a vast reservoir of manufacturing expertise intricately woven with profound technical knowledge and process mastery. This seamless synergy ensures the delivery of superior quality and revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and redefine industry excellence standards.
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 realm of innovation, where precision is king, we elevate industry standards through unmatched methodologies. We take pride in laying the groundwork for world-class quality benchmarks, pioneering revolutionary standards that permeate every facet of our production journey. Our steadfast devotion to excellence is manifest in every meticulously crafted step, ensuring our materials are as refined as the sophisticated methodologies we employ.
Every raw material entering our state-of-the-art warehouse is subject to a stringent evaluation process, setting new quality assurance benchmarks. Our holistic approach includes meticulous chemical composition analysis and rigorous assessments of physical properties. Suppliers are mandated to provide a Certificate of Origin, along with a verified Declaration of Conformity, ensuring only the finest materials are used in our avant-garde medical machining services. This rigorous validation process reinforces the integrity of materials, perfectly aligning with our unwavering commitment to exceptional quality.
Uncompromising In-Process Quality Control: With an unwavering commitment to meticulous detail and relentless vigilance, we pursue perfection with steadfast dedication. This scrupulous process ensures our standard of excellence is consistently met-and often exceeded-across every phase of production.
Throughout the intricate machining process, each component is subjected to exhaustive scrutiny ensuring dimensions and tolerances meet our rigorous specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly mitigate the risk of producing substandard goods, consistently maintaining exceptional quality throughout every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the foundation of immaculate excellence, showcasing unmatched precision and thoroughness.
The 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 addressed before they escalate into production hurdles. Our comprehensive FAI process is pivotal in minimizing quality risks, guaranteeing our products consistently achieve the pinnacle of standards and reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, safeguarding the delivery of perfection.
Before any product departs our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and adherence to customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, thereby offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, our journey began, though our pioneering roots delve as far back as 2002. Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of innovation in the exalted realm of high-precision component machining. Our story is one of relentless dedication to the art and science of engineering excellence, spanning over two decades of tireless innovation and unparalleled precision. We have carved a unique niche as trailblazers in precision engineering, continuously pushing the frontiers of technical research, setting revolutionary industry benchmarks, and consistently exceeding the loftiest expectations in both pioneering innovations and extraordinary quality. We have meticulously cultivated an extraordinary level of technical prowess, establishing ourselves as the undisputed market leaders with a prestigious reputation for unparalleled excellence. Our unrivaled mastery in precision medical machining services stands unmatched, consistently achieving the most exacting tolerances and delivering impeccable surface finishes. This unwavering commitment solidifies our standing as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and admiration, making us the ultimate authority for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, supported by an extraordinary team of over 400 highly qualified specialists, Donghui has meticulously engineered a comprehensive, vertically integrated industry chain. This seamless connection encompasses cutting-edge research and development, superior production, and flawless delivery. Our operations consistently meet and exceed the diverse aspirations of our clients with remarkable efficiency and exceptional quality. Our state-of-the-art facilities are exquisitely designed to master the most complex and demanding machining tasks, reinforcing our prestigious 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)