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. Every creation becomes a tribute to impeccable artistry through our relentless pursuit of perfection. By harnessing cutting-edge technologies and adhering to our unwavering standards of quality, we distinguish ourselves by 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 precision engineering 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 set the vanguard in advanced medical technologies, commanding unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical, essential components, we drive remarkable advancements in chip fabrication and related equipment, significantly enhancing both efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the transformative landscape of future energy solutions.
- AutomotiveProviding indispensable components, we are at the forefront of innovation in the automotive industry. Our contributions advance intelligent and electric vehicle development, shaping 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 unmatched precision and superior quality that endures the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by a truly remarkable fleet of over 300 of the most sophisticated machinery units in the industry. This expansive, state-of-the-art collection ensures our leadership in both innovation and adaptability. By consistently delivering groundbreaking solutions, we establish the industry benchmark for excellence, continuously striving for unmatched precision and extraordinary quality. These Top-Tier Branded Our pioneering machinery units form the very foundation of our precision-driven manufacturing process, establishing the critical infrastructure that underpins our steadfast production standards. Through these state-of-the-art tools, we perpetually refine and enhance our manufacturing techniques to achieve consistently exceptional results. With our high-caliber machines, we meticulously execute complex and demanding machining tasks across a diverse range of industries, achieving an unparalleled level of precision and efficiency. Our extensive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization that not only meets but consistently exceeds the unique needs of our valued clients, far surpassing their highest expectations.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience intricately blended with profound technical expertise and process mastery. This harmonious synergy ensures not only outstanding quality but also groundbreaking innovation, empowering us to consistently deliver extraordinary products that surpass expectations and establish new 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
Exquisite and Exacting Incoming Material Inspection: In today's fast-paced world where innovation and precision reign supreme, we do more than merely meet the industry's towering expectations; we redefine them through our unrivaled methodologies. We proudly lay the groundwork for superior quality benchmarks, establishing revolutionary standards that echo throughout every stage of our production journey.
Every raw material that graces our state-of-the-art warehouse is subjected to a stringent evaluation, setting a new benchmark in quality assurance. Our comprehensive approach includes an in-depth analysis of chemical compositions and rigorous assessments of physical properties. Suppliers must provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring that only the highest quality materials are utilized in our cutting-edge medical machining services. This meticulous validation process fortifies the integrity and purity of materials, perfectly reflecting our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With a steadfast commitment to detail and relentless vigilance, we pursue perfection with unwavering dedication. This meticulous process ensures our standards of excellence are consistently met and often surpassed.
Throughout the intricate machining process, each component is subjected to thorough scrutiny to ensure dimensions and tolerances precisely align with our stringent specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently guaranteeing exceptional quality is maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, exemplifying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process stands as the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges right at the outset. This proactive approach ensures that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is essential in minimizing quality risks, ensuring our products consistently reach the highest standards and reflecting our unwavering commitment to excellence throughout 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 leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring that every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the acclaimed year of 2009, yet with roots stretching back to the inspirational year of 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of excellence in the sophisticated realm of high-precision component machining. Our illustrious journey is driven by an unwavering dedication to the intricate artistry and rigorous science of engineering, marked by over two decades of relentless innovation and unmatched precision. We have masterfully engraved our legacy as trailblazers in precision engineering, persistently propelling technical research and setting revolutionary benchmarks in the industry, continually exceeding expectations with both innovation and unparalleled quality. We have meticulously honed a remarkable level of technical expertise, firmly establishing ourselves as market leaders with a distinguished reputation for unparalleled excellence. Our proficiency in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This commitment cements our status as the preferred choice in the medical sector. Our precision and unwavering dependability have garnered us lasting trust and esteem, making us the preeminent name for superior machining solutions.
With four strategically positioned production facilities, nestled in the vibrant and dynamic hubs of Shenzhen and Guiyang, and backed by an impressive team of over 400 exceptionally skilled specialists, Donghui has expertly crafted a comprehensive, vertically integrated industry chain. This chain seamlessly links state-of-the-art research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse needs of our clients with exceptional efficiency and unrivaled quality. Our cutting-edge facilities are meticulously designed to undertake the most complex and demanding machining tasks, further enhancing 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)