Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to advancing the craft of precision manufacturing. Where the artistry of traditional craftsmanship converges with the forefront of innovation, we herald a revolutionary era of unmatched distinction. Our unwavering pursuit of perfection ensures that every creation is a tribute to meticulous artistry. By leveraging the latest technologies and adhering to our steadfast standards of quality, we set ourselves apart, delivering exceptional, intricately engineered components that epitomize the zenith 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, strengthening our role as pioneers and leaders in the industry. As trailblazers of innovation, we redefine industry benchmarks in the design and delivery of groundbreaking intelligent automation equipment. Our innovative 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 a new, unprecedented standard of excellence in the field.
- SemiconductorsSupplying critical, essential components, we are pivotal in driving advancements in chip fabrication and related equipment, significantly enhancing efficiency and fostering innovation in the semiconductor industry.
- New EnergyWe are instrumental in the innovative and sustainable evolution of next-generation energy equipment, crucially contributing to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we are at the forefront of innovation in the automotive industry. Our contributions are key to advancing 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 driven by an extraordinary collection of over 300 of the industry's most sophisticated and advanced machinery units. This vast and innovative assembly catapults us to the forefront of technological innovation, securing our leadership in adaptability and precision. By consistently delivering groundbreaking solutions, we set the industry benchmark for excellence, always striving for unrivaled precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units are the backbone of our precision-centric manufacturing operations, creating the essential infrastructure that supports our unwavering production standards. With these state-of-the-art tools, we continually refine and elevate our manufacturing processes to consistently achieve superior results. With our top-tier machines, we flawlessly undertake intricate and demanding machining tasks across numerous industries, achieving unmatched precision and efficiency. Our expansive capabilities ensure unwavering adherence to the most stringent quality standards, while offering bespoke customization that not only fulfills but consistently exceeds the unique expectations of our valued clients, surpassing their highest aspirations.
- Celebrating an esteemed 20-year legacy, we draw from a rich reservoir of manufacturing expertise intricately intertwined with profound technical knowledge and process mastery. This seamless synergy not only ensures superior quality but also fosters revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that eclipse expectations and redefine 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 the dynamic world of innovation, where every fraction of precision counts, we go beyond industry norms with unmatched methodologies. We proudly set the stage for the finest quality standards, crafting revolutionary benchmarks that permeate every phase of our production process. Our dedication to excellence resonates throughout each step, ensuring that our materials are as refined as our methods.
Every raw material entering our state-of-the-art facilities is subjected to a rigorous evaluation that establishes a new standard in quality assurance. Our comprehensive methodology includes detailed chemical composition analyses and thorough assessments of physical properties. Suppliers are required to present a Certificate of Origin alongside a verified Declaration of Conformity, affirming that only top-tier materials are utilized in our groundbreaking medical machining services. This meticulous validation process reinforces the integrity of materials, perfectly aligning with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: With an unwavering focus on meticulous detail and relentless vigilance, we pursue perfection with steadfast dedication. This rigorous process guarantees that our standard of excellence is consistently achieved-and often exceeded-throughout each stage of production.
During the complex machining process, every component is subjected to thorough scrutiny, ensuring dimensions and tolerances align precisely with our stringent specifications. This proactive inspection protocol is crucial for identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly mitigate the risk of substandard production, consistently upholding exceptional quality at every stage of manufacturing.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of flawless excellence, showcasing unparalleled precision and thoroughness.
The First Article Inspection (FAI) process stands at the heart of our quality strategy, adeptly identifying and addressing potential production challenges from the outset. This proactive approach ensures issues are resolved before they escalate into production obstacles. Our comprehensive FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve peak standards, and reflecting our steadfast commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional 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 includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was established as a luminary in the refined domain of high-precision component machining. Our prestigious journey has been fueled by a relentless passion for the nuanced art and exacting science of engineering, spanning more than two decades of unyielding innovation and extraordinary precision. We have brilliantly etched our name as pioneers in precision engineering, perpetually advancing technical research and establishing groundbreaking standards in the industry, continually surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an extraordinary level of technical prowess, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our expertise in precision medical machining services is second to none, consistently achieving the strictest tolerances and delivering impeccable surface finishes. This dedication confirms our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and regard, making us the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive 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 impeccable delivery. Our operations guarantee we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are exceptionally designed to handle the most intricate and demanding machining tasks, bolstering our esteemed reputation for excellence and groundbreaking 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)