Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we passionately perfect the art of precision manufacturing. Where timeless craftsmanship meets cutting-edge innovation, we are ushering in a new era of unmatched excellence. Our relentless pursuit of perfection ensures every creation is a tribute to exquisite artistry. By harnessing the latest technologies and adhering to unwavering quality standards, we stand out as leaders, delivering exceptional, intricately engineered components that represent 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 ensure unmatched quality throughout every aspect of our operations, solidifying our position as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in designing and delivering groundbreaking intelligent automation equipment. Our revolutionary solutions seamlessly integrate into diverse industries, expertly addressing unique challenges across various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, setting unprecedented excellence standards in the field.
- SemiconductorsWith our critical and essential components, we lead the charge in driving advancements in chip fabrication and associated 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 essential components, we are at the forefront of innovation within 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 epitomize excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by an unparalleled fleet of over 300 of the industry's most advanced and sophisticated machinery units. This remarkable and cutting-edge assembly positions us at the pinnacle of innovation, assuring our dominance in both adaptability and precision. By consistently providing groundbreaking solutions, we set the benchmark for industry excellence, perpetually striving for unmatched precision and extraordinary quality. These Top-Tier Branded Our trailblazing machinery units are the bedrock of our precision-driven manufacturing operations, establishing the vital infrastructure that sustains our unwavering production standards. With these state-of-the-art tools, we continually refine and enhance our manufacturing processes to attain consistently superior outcomes. With our premier machines, we effortlessly execute intricate and demanding machining tasks across a diverse array of industries, attaining unparalleled precision and efficiency. Our extensive capabilities ensure steadfast compliance with the most stringent quality standards while offering bespoke customization that not only fulfills but consistently exceeds the unique expectations of our esteemed clients, surpassing their loftiest aspirations.
- With an illustrious 20-year legacy, we draw from a rich reservoir of manufacturing expertise tightly interwoven with profound technical knowledge and process mastery. This seamless synergy guarantees not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed 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 realm where precision is paramount, we don't just meet industry standards-we redefine them with unmatched methodologies. Establishing the foundation for global quality benchmarks, we set revolutionary standards that impact every stage of our production journey. Our steadfast dedication to excellence is embodied in each meticulously crafted step, ensuring our materials reflect the sophistication of the methods we employ.
Every raw material that enters our state-of-the-art warehouse undergoes an uncompromising evaluation, setting unprecedented benchmarks in quality assurance. Our comprehensive approach includes meticulous chemical composition analysis and rigorous assessments of physical attributes. Suppliers must provide a Certificate of Origin and a verified Declaration of Conformity, ensuring only the finest materials are utilized in our cutting-edge medical machining services. This stringent validation process fortifies material integrity, perfectly aligning with our dedication to unmatched quality.
Uncompromising In-Process Quality Control: With an unyielding commitment to meticulous detail and constant vigilance, we strive for perfection with relentless dedication. This rigorous process ensures our standard of excellence is consistently achieved-and frequently exceeded-across every production phase.
Throughout the intricate machining process, each component undergoes exhaustive scrutiny to ensure dimensions and tolerances precisely meet 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 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 preventive framework serves as the cornerstone of immaculate excellence, showcasing unparalleled precision and thoroughness.
The First Article Inspection (FAI) process stands as a pivotal element of our quality strategy, expertly identifying and resolving potential production challenges from the outset. 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 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 adherence to customer-specific requirements. This thorough inspection underscores our unwavering commitment to quality, ensuring every delivered part aligns with our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, yet with roots deeply embedded since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. ascended as a luminary in the refined domain of high-precision component machining. Our storied journey is fueled by an unwavering enthusiasm for the intricate artistry and exacting science of engineering, spanning over two decades of relentless innovation and extraordinary precision. We have etched our name indelibly as trailblazers in precision engineering, ceaselessly advancing the boundaries of technical research and establishing groundbreaking industry standards, consistently surpassing expectations in both innovation and unmatched quality. Our Team possesses an unparalleled level of technical expertise, positioning us as market leaders with an esteemed reputation for exceeding excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most exacting tolerances and delivering impeccable surface finishes. This unwavering dedication cements our position as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and respect, establishing us as the definitive authority for superior machining solutions.
With a strategically distributed network of four production facilities, situated in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an outstanding team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly connects pioneering research and development, superior production, and flawless delivery. Our operations ensure we unfailingly meet and exceed the diverse demands of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are exquisitely designed to tackle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and pioneering innovation.
Impressive 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)