Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we immerse ourselves in the world of excellence, where mastery meets innovation. Our unwavering dedication to the art of precision manufacturing ensures that each masterpiece we create is a testament to immaculate perfection. With a steadfast commitment to quality craftsmanship and technological prowess, we stand distinguished, delivering unparalleled results with every meticulously crafted component. Our unparalleled expertise dominates the realm of precision engineering. With masterful navigation in the esteemed craft of component manufacturing, we showcase remarkable dexterity and sophisticated finesse, ensuring excellence at every turn. As pioneers of innovation, we set the gold standard in crafting and delivering groundbreaking intelligent automation equipment. Our avant-garde solutions seamlessly integrate across a multitude of industries, adeptly addressing diverse demands in numerous applications, including:
- Medical and Biotech: Presenting impeccably engineered, ultra-high-precision components alongside transformative solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and related equipment with indispensable, critical components that drive extraordinary advancements and enhanced efficiency.
- New Energy: Playing a pivotal role in propelling the innovative and sustainable development of next-generation energy equipment, shaping the future landscape of energy solutions.
- Automotive: Supplying key components that drive innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components epitomize the pinnacle of excellence. Serving pivotal sectors such as medical, automation, semiconductor, and automotive industries, we offer unmatched 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 an awe-inspiring fleet comprising over 300 of the industry's most sophisticated machinery units. This extensive and advanced collection ensures we perpetually remain at the forefront of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the gold standard for industry excellence, driving towards unparalleled precision and supreme quality. These Top-Tier Branded Our pioneering machinery units are the backbone of our precision-focused manufacturing process, forming the essential infrastructure that supports our rigorous production standards. Utilizing these state-of-the-art tools, we continually refine and enhance our manufacturing strategies to achieve stellar results consistently. By employing our high-caliber machines, we expertly execute complex and challenging machining requirements across a variety of industries, achieving an unparalleled level of precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards while delivering bespoke customization that not only meets but exceeds the unique needs of our esteemed clients, far surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw from a deep reservoir of manufacturing experience seamlessly combined with comprehensive technical expertise and process mastery. This harmonious blend guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new benchmarks 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
Meticulous and Rigorous Incoming Material Inspection: In the dynamic world of innovation and precision, we transcend industry standards with our unparalleled methodologies. As pioneers, we not only meet but set groundbreaking standards in crafting premium quality benchmarks, revolutionizing every phase of our production processes.
Every raw material that enters our cutting-edge warehouse undergoes an exhaustive evaluation process, pioneering a new era in quality assurance. Our comprehensive approach features intricate chemical composition analysis and detailed physical property assessments. We mandate a Certificate of Origin and a verified Declaration of Conformity from our suppliers, guaranteeing that only the highest-grade materials fuel our advanced medical machining services. This meticulous validation process ensures the purity and integrity of materials, perfectly harmonizing with our unyielding dedication to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and meticulous attention to detail drive our pursuit of excellence with unwavering dedication.
Throughout the intricate machining process, each component undergoes meticulous scrutiny, ensuring that dimensions and tolerances seamlessly align with our rigorous specifications. This ongoing inspection protocol is instrumental in proactively identifying and intercepting potential defects, preventing the propagation of any non-conforming parts. Through this vigilant strategy, we dramatically reduce the risk of producing substandard goods, consistently ensuring that exceptional quality is maintained throughout every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of unmatched excellence and precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly foreseeing and resolving potential production challenges right from the start. This proactive approach ensures that issues are swiftly addressed, preventing them from escalating into mass production obstacles. This all-encompassing FAI process is crucial in minimizing quality risks, consistently elevating our products to the highest standards and embodying our steadfast commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unparalleled quality and precision.
Prior to any product departing our facility, it undergoes a rigorous and comprehensive final inspection. This stringent evaluation covers dimensions, visual appeal, performance, and customer-specific needs. Through this meticulous inspection, we underscore our unwavering dedication to quality, ensuring every part delivered meets our exacting standards, thus providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, anchored by roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as an illustrious beacon in the sophisticated domain of high-precision component machining. Our illustrious journey, powered by a fervent passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly etched our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and establishing groundbreaking benchmarks within the industry. We have cultivated an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a stellar reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes. This cements our status as the preeminent choice in the medical sector, where our precision and steadfast reliability continue to earn unwavering trust and esteem.
With four strategically located production bases, in the dynamic and bustling centers of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that flawlessly links research and development, superior production, and impeccable delivery. This ensures we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to undertake the most complex and demanding machining tasks, reinforcing 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)