Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. Here, where the art of time-honored craftsmanship meets the forefront of technological innovation, we inaugurate a new era of unmatched excellence. Our unyielding pursuit of perfection ensures that every creation is a homage to flawless artistry. By seamlessly integrating the latest advancements with our steadfast devotion to quality, we set ourselves apart, consistently delivering extraordinary, finely-tuned components that symbolize the highest echelons of precision and skill. With unmatched expertise in precision engineering, we establish an unparalleled benchmark for component excellence. Our remarkable agility and sophisticated finesse ensure the utmost quality throughout every aspect of our operations, affirming our role as pioneers and leaders in the industry. As visionaries of innovation, we redefine industry standards in the design and delivery of revolutionary intelligent automation equipment. Our pioneering solutions seamlessly integrate into a myriad of 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, setting new, unprecedented standards of excellence in the field.
- SemiconductorsWith our critical and essential components, we are at the forefront of driving advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe are pivotal in the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we are at the helm of innovation within the automotive industry. Our contributions propel the development of intelligent and electric vehicles, defining the future of mobility.
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: Setting the Standard for Industrial Prowess Driving our operations with unrivaled power, we boast an extraordinary fleet of over 300 of the industry's most sophisticated machinery units, each a testament to technological innovation. This impressive collection not only positions us at the pinnacle of adaptability and precision but also ensures our relentless pursuit of groundbreaking solutions. We continuously redefine excellence, setting the benchmark for precision and quality in the industry. These Top-Tier Branded Machines Our innovative machinery units are the backbone of our precision-focused manufacturing operations, forming the essential framework that maintains our unwavering production standards. With these cutting-edge tools, we are in a constant state of refinement, enhancing our manufacturing processes to consistently achieve superior results. Equipped with top-tier machinery, we masterfully execute complex machining tasks across a diverse range of industries, delivering precision and efficiency that are unparalleled. Our extensive capabilities ensure strict adherence to the highest quality standards and offer bespoke customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, fulfilling even their loftiest visions.
- Celebrating a distinguished 20-year legacy, we harness a vast reservoir of manufacturing expertise meticulously interwoven with deep technical knowledge and process mastery. This seamless integration not only guarantees superior quality but also fosters revolutionary innovation, empowering us to deliver exceptional products that exceed expectations and set new benchmarks for industry excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unrivaled Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In a dynamic world where precision is paramount, we redefine industry benchmarks with our unparalleled methodologies. We proudly lay the foundation for world-class quality standards, setting revolutionary benchmarks that influence every phase of our production journey. Our unwavering commitment to excellence is reflected in each meticulously crafted step, ensuring our materials meet the sophistication of our methods.
Every raw material entering our state-of-the-art warehouse undergoes stringent evaluation, setting new standards in quality assurance. Our holistic approach includes thorough chemical composition analysis and detailed assessments of physical characteristics. Suppliers must provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring only the finest materials are employed in our cutting-edge medical machining services. This rigorous validation process fortifies material integrity, perfectly aligning with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: With unwavering attention to meticulous detail and relentless vigilance, we aim for 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 undergoes exhaustive scrutiny to ensure dimensions and tolerances are precisely aligned with our stringent specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly reduce the risk of producing substandard goods, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the cornerstone of immaculate excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process is a pivotal component of our quality strategy, expertly identifying and resolving potential production challenges from the onset. This proactive approach ensures issues are addressed before escalating into production hurdles. Our comprehensive FAI process is crucial in minimizing quality risks, guaranteeing our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product exits 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 meets our exacting standards, offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, although our inception dates 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. Our legacy is indelibly etched as pioneers in precision engineering, consistently pushing the envelope of technical research to establish groundbreaking industry standards, surpassing expectations with unmatched innovation and unparalleled quality. We have meticulously honed an exceptional level of technical prowess, establishing ourselves as market leaders renowned for our unmatched excellence. Our mastery in precision medical machining services is unrivaled, 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, earning us enduring trust and regard. Our precision and steadfast reliability make us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain seamlessly 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 artfully designed to handle the most complex and demanding machining tasks, fortifying 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)