Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are unwavering in our pursuit of excellence, embracing the harmonious blend of artistry and scientific prowess that is the backbone of precision manufacturing. Our profound dedication ensures that every piece reflects unparalleled craftsmanship and intricate technological excellence. Guided by our unparalleled expertise, we illuminate the path in the realm of precision engineering, masterfully navigating the prestigious domain of superior component manufacturing with exceptional skill and refined finesse. As pioneers of innovation, we set the benchmarks in the design and delivery of transformative intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into a diverse range of industries, catering to a myriad of applications, including:
- Medical and Biotech: Crafting ultra-high-precision components and visionary solutions that are meticulously designed to elevate the innovative edge of emerging medical technologies.
- Semiconductors: Revolutionizing chip fabrication and related equipment with indispensable components that drive technological progress and efficiency.
- New Energy: Contributing significantly to the advancement of innovative and sustainable energy solutions, fueling the equipment of the future.
- Automotive: Supplying critical components that spark innovation in the automotive sector, promoting the evolution of intelligent and electric vehicles.
Main Products
- Crafted to perfection, our non-standard customized components are the epitome of excellence, serving essential sectors like medical, automation, semiconductor, and automotive industries with unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are distinguished by an unrivaled fleet of over 300 of the industry's most advanced machinery units. This comprehensive array ensures a vast and varied catalog of equipment categories, enabling us to remain at the cutting edge of innovation and adaptability. With this expansive collection, we consistently deliver pioneering solutions that redefine industry standards for excellence and set us apart as leaders in the field. These Top-Tier Branded machinery units are the cornerstone of our precision-focused manufacturing process. Leveraging our high-caliber machines, we masterfully meet the intricate and demanding machining needs across a spectrum of industries with outstanding precision and efficiency. Our extensive capabilities ensure steadfast compliance with the highest quality standards, while providing bespoke customization uniquely tailored to the distinct requirements of our valued clients, consistently exceeding their expectations.
- Boasting a distinguished 20-year legacy, we capitalize on a rich reservoir of manufacturing expertise, seamlessly woven with significant technical acumen and process strengths. This dynamic synergy guarantees exceptional quality and groundbreaking innovation, empowering us to consistently deliver remarkable products that not only exceed expectations but also establish new industry benchmarks.
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: Our commitment is unwavering, consistently surpassing industry benchmarks with unmatched precision and dedication.
Every raw material entering our secure warehouse undergoes an unparalleled evaluation, setting an industry benchmark for quality assurance. Our diligent processes involve meticulous analysis of chemical composition and a thorough examination of physical properties. We demand steadfast excellence, requiring suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring only premium materials enhance our advanced medical machining services. This exhaustive authentication process guarantees the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior standards.
Uncompromising In-Process Quality Control: With relentless vigilance, our attention to detail propels us towards the pinnacle of perfection, ensuring excellence in every aspect.
Throughout the intricate machining process, every component is meticulously scrutinized to ensure dimensions and tolerances align with our rigorous specifications. This continuous inspection protocol proactively identifies and intercepts potential defects, preventing non-conforming parts from advancing. Through this vigilant approach, we significantly minimize the risk of producing substandard goods, ensuring exceptional quality is consistently maintained throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework lays the foundation for unparalleled excellence and precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, skillfully identifying and resolving potential production challenges from the outset. This proactive methodology ensures issues are contained before escalating into mass production concerns. The comprehensive FAI process minimizes quality risks, ensuring our products consistently reach the pinnacle of standards, reflecting our steadfast dedication to excellence throughout every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unmatched quality and precision.
Before any product departs our facility, it undergoes an exhaustive final inspection, encompassing dimensions, visual appearance, performance, and customer-specific requirements. This rigorous evaluation showcases our relentless commitment to quality, ensuring every part we deliver meets our exacting standards. We provide only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for the art and science of engineering, spans over two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry standards. We have meticulously honed an unparalleled level of technical expertise, distinguishing ourselves as market leaders with a prestigious reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most exacting tolerances, delivering impeccable surface finishes. This solidifies our position as the foremost choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, nestled in the vibrant and thriving centers of Shenzhen and Guiyang, bolstered by an inspiring team of over 400 exceptionally skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet 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 tasks, reinforcing our prestigious 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)