Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to excellence is fueled by a profound dedication to mastering the artful craftsmanship and intricate science that lies at the heart of manufacturing brilliance. With unmatched proficiency, we illuminate the path in precision engineering, propelling ourselves into the esteemed realm of top-tier component manufacturing with unparalleled skill and expertise. As pioneers of innovation, we set the benchmark in designing and delivering revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a vast array of industries, adapting to diverse demands in numerous applications, including:
- Medical and Biotech: Offering meticulously engineered, ultra-high-precision components and pioneering solutions specifically tailored for the future of medical devices.
- Semiconductors: Enhancing chip production and associated equipment with essential components that are both critical and indispensable.
- New Energy: Playing a pivotal role in the innovative and sustainable advancement of next-generation energy equipment.
- Automotive: Providing key components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- Skillfully crafted, non-standard customized components that serve crucial industries such as medical, automation, semiconductor, and automotive sectors with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase an unrivaled fleet of over 300 of the industry's most advanced and sophisticated machinery units. This ensures that we maintain an extensive and diverse catalog of equipment categories, empowering us to stay at the forefront of cutting-edge innovation and adaptability. Our expansive collection facilitates the delivery of groundbreaking solutions. These Top-Tier Branded machinery units form the backbone of our precision-focused manufacturing excellence. Armed with these high-caliber machines, we expertly address intricate and demanding machining requirements across a multitude of industries with unparalleled precision and efficiency. Our comprehensive capabilities ensure strict compliance with the highest quality standards while offering bespoke customization solutions, meticulously tailored to meet the unique demands of our esteemed clients.
- With a prestigious 20-year legacy, we leverage an extensive wealth of manufacturing experience, seamlessly integrating it with substantial technical expertise and process strengths. This guarantees superior quality and groundbreaking innovation, empowering us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Standards with Unrivaled Precision
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every batch of raw material that enters our secure warehouse undergoes an exhaustive and meticulous evaluation process, establishing a new benchmark in quality assurance. Our commitment to excellence is demonstrated through a comprehensive analysis of the chemical composition and a scrupulous examination of the physical properties of each material. We ensure that each supplier provides us with a Certificate of Origin and a stamped Declaration of Conformity, confirming that only the highest-quality materials are used in our advanced CNC machining parts for the semiconductor industry. This rigorous authentication process guarantees not only the integrity and purity of materials but also unwavering adherence to our consistently elevated standards, ensuring the supreme quality of our high-precision medical machining services.
Rigorous In-Process Quality Control: Continuously Striving for Perfection with Unyielding Vigilance
Throughout the sophisticated and intricate machining process, each component is subject to meticulous scrutiny to ensure that its dimensions and tolerances are perfectly aligned with our exacting specifications. This continuous inspection protocol is designed to proactively intercept potential defects, thus preventing any non-conforming parts from advancing further along in the production process. Through this vigilant and scrupulous approach, we substantially mitigate the risk of producing substandard goods, ensuring that superior quality is consistently maintained at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence and Precision
Our First Article Inspection (FAI) serves as the cornerstone of our strategic quality assurance framework. It is meticulously designed to adeptly identify and resolve any potential production challenges from the very outset, preventing issues from escalating into full-scale production problems. This comprehensive FAI process is indispensable for minimizing quality risks and ensuring that our products consistently achieve the highest quality standards. It reflects our unwavering dedication to excellence and our commitment to maintaining these standards throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality and Precision
Before any product departs from our state-of-the-art facility, it is subjected to a meticulous and thorough final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, performance, as well as any customer-specific requirements. This extensive inspection regimen is a testament to our relentless and uncompromising commitment to quality, guaranteeing that every part we dispatch meets our exacting standards. We are dedicated to delivering only the highest quality products to our esteemed and valued customers, ensuring satisfaction and excellence with every piece.
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. has emerged as a beacon of precision and innovation in the realm of high-precision component machining. Our illustrious journey, driven by an insatiable passion and unwavering dedication to the art and science of engineering, spans over two remarkable decades. We have passionately carved our niche as pioneers in precision engineering, relentlessly pursuing technical research and setting industry benchmarks of unparalleled excellence. We have meticulously cultivated an unparalleled depth of technical expertise, proudly distinguishing ourselves as market leaders with a celebrated reputation for extraordinary excellence. Our supreme mastery in precision medical machining services consistently achieves the most challenging tolerances and delivers flawless surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability continue to earn unswerving trust and admiration.
With four strategically positioned production bases, in the dynamic and thriving hubs of Shenzhen and Guiyang, backed by an inspiring workforce of over 400 highly skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This seamlessly connects research and development, top-tier production, and flawless delivery, ensuring that we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched 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)