Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly embrace the art of precision manufacturing, where ancient craftsmanship seamlessly blends with breakthrough innovation. Our relentless pursuit of perfection ensures every creation exudes unmatched excellence. By merging timeless craftsmanship with groundbreaking technology, we distinguish ourselves, delivering extraordinary results with each meticulously crafted component. Our unmatched proficiency in precision engineering sets a new standard for excellence in component manufacturing. With remarkable agility and sophisticated finesse, we guarantee exceptional quality in every aspect of our work, establishing ourselves as leaders in the industry. As pioneers of innovation, we set the gold standard for designing and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, skillfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and groundbreaking solutions are designed for leading-edge medical technologies, setting new benchmarks in the industry.
- SemiconductorsWe enhance chip production and related equipment by supplying crucial, critical components, driving significant advancements and heightened efficiency in the semiconductor sector.
- New EnergyWe play a vital role in advancing the innovative and eco-friendly development of next-generation energy equipment, contributing to the future landscape of energy solutions.
- AutomotiveWe provide essential components that drive innovation within the automotive industry, furthering the advancement of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a remarkable fleet comprising over 300 of the industry's most advanced machinery units. This extensive, state-of-the-art collection ensures we remain at the forefront of innovation and adaptability. By consistently delivering pioneering solutions, we uphold the industry benchmark for excellence, perpetually striving for unparalleled precision and superior quality. These Top-Tier Branded Our cutting-edge machinery forms the foundation of our precision-focused manufacturing, providing the essential infrastructure that upholds our rigorous production standards. Utilizing these innovative tools, we continually enhance and elevate our manufacturing processes to consistently yield exceptional results. Harnessing our high-caliber machines, we expertly tackle complex and demanding machining tasks across numerous industries, achieving unmatched precision and efficiency. Our extensive capabilities ensure compliance with the highest quality standards while offering bespoke customization that not only meets but exceeds our esteemed clients' expectations, consistently surpassing the highest benchmarks.
- With a prestigious 20-year history, we draw upon a wealth of manufacturing experience seamlessly integrated with profound technical expertise and process mastery. This harmonious synergy guarantees not only exceptional quality but also groundbreaking innovation. We are empowered to consistently deliver extraordinary products that exceed expectations, setting new standards of excellence within the industry.
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 vibrant world of innovation and precision, we not only meet the industry's towering expectations but surpass them with unmatched methodologies. We proudly pioneer superior quality benchmarks, setting revolutionary standards that echo throughout every phase of our production journey.
Every raw material that enters our avant-garde warehouse undergoes an exhaustive evaluation, setting unprecedented standards in quality assurance. Our comprehensive approach embraces detailed chemical composition analysis and exacting physical property assessments. Suppliers are mandated to present a Certificate of Origin alongside a verified Declaration of Conformity, ensuring only the finest materials are reserved for our state-of-the-art medical machining services. This meticulous validation process fortifies the integrity and purity of materials, harmonizing perfectly with our resolute commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to assure dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is pivotal for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from progressing. Through this diligent strategy, we profoundly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework stands as the cornerstone of immaculate excellence, embodying unrivaled precision.
The First Article Inspection (FAI) process is the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges right from inception. This anticipatory approach ensures issues are addressed before they can escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the zenith of standards, embodying our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision.
Before any product departs our facility, it endures a meticulous and detailed comprehensive final inspection. This rigorous evaluation spans dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Founded in the renowned year of 2009, with its beginnings tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly shines as a luminary in the sophisticated domain of high-precision component machining. Our esteemed journey, fueled by our deep-seated passion for both the intricate art and the rigorous science of engineering, spans over two decades of unfaltering innovation and superlative precision. We have skillfully etched our legacy as pioneers in precision engineering, persistently pushing the boundaries of technical research, and establishing groundbreaking standards within the industry. Our commitment consistently surpasses expectations in both innovation and quality. We have fostered an outstanding level of technical prowess, positioning ourselves as market leaders with an impeccable reputation for extraordinary excellence. Our unmatched expertise in precision medical machining services meets the most stringent tolerances, producing flawless surface finishes that reinforce our status as the premier choice in the medical sector. Our precision and unwavering reliability continue to command trust and admiration, making us the preferred name for top-tier machining solutions.
With four strategically positioned production bases, situated in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an exemplary team of over 400 highly skilled professionals, Donghui has intricately crafted a comprehensive, vertically integrated industry chain. This sophisticated chain seamlessly connects pioneering research and development, superior production, and impeccable delivery. Our operations ensure we consistently satisfy and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining endeavors, further cementing 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)