Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our fervent commitment to supreme excellence transcends obligation; it is driven by a boundless passion for mastering the intricate art and sophisticated science of manufacturing prowess. Our unmatched expertise serves as a beacon, illuminating the path to precision and guiding us through the elite realm of premier component manufacturing. As pioneers at the cutting edge of innovation, we establish the gold standard in designing and producing groundbreaking intelligent automation equipment. Our premier solutions seamlessly converge across a vast array of industries, expertly fulfilling diverse needs in numerous applications, including:
- Medical and Biotech: Delivering exquisitely engineered, high-precision components alongside groundbreaking solutions, purpose-built for the next era of medical devices.
- Semiconductors: Elevating chip production and associated equipment with vital core components that are simply indispensable.
- New Energy: Playing a pivotal role in the visionary and sustainable evolution of cutting-edge energy equipment.
- Automotive: Supplying essential components that drive innovation within the automotive industry, advancing the future of smart and electric vehicles.
Main Products
- Masterfully crafted, non-standard customized components, serving critical sectors like medical, automation, semiconductor, and automotive industries with unparalleled distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most advanced machinery units, ensuring we possess a wide-ranging catalog of equipment categories. This extensive assemblage propels us to the pinnacle of innovation and adaptability, securing our position as leaders in the field. These top-tier branded machinery units are the bedrock of our precision-driven manufacturing, enabling us to proficiently meet the complex and demanding machining requirements across an expansive variety of industries with unmatched precision and efficiency. Our comprehensive capabilities empower us to uphold the highest standards of quality while offering bespoke customization, meticulously tailored to the unique preferences of our valued clientele.
- With a distinguished 20-year legacy, we hold a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths, guaranteeing superior quality and groundbreaking innovation. This enduring wealth of knowledge empowers 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 Benchmarks
Every raw material entering our secure warehouse undergoes an exhaustive evaluation process, setting a benchmark in quality assurance. This meticulous strategy involves in-depth chemical analysis and comprehensive physical property examination. Our commitment to excellence requires each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. Such rigorous scrutiny guarantees that only top-tier materials are utilized in our precision medical machining services. This thorough authentication ensures material integrity and purity, consistently meeting our high standards.
Rigorous In-Process Quality Control: Striving for Perfection
During the intricate machining process, each component is meticulously examined to ensure dimensions and tolerances meet our stringent specifications. This diligent inspection protocol proactively identifies potential defects, preventing non-conforming parts from advancing. Our vigilant approach significantly reduces the risk of producing substandard goods, ensuring superior quality at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Framework for Excellence
Our First Article Inspection (FAI) is a cornerstone of our strategy, expertly identifying and resolving potential production challenges from the start. This proactive measure prevents issues from escalating into mass production. The comprehensive and precise FAI process minimizes quality risks, ensuring our products achieve the highest standards, reflecting our dedication to excellence throughout the production cycle.
Comprehensive Final Inspection: The Ultimate Quality Safeguard
Before any product leaves our facility, it undergoes a meticulous final inspection covering dimensions, visual appeal, and performance, including customer-specific requirements. This extensive evaluation demonstrates our relentless commitment to quality, ensuring every part meets our exacting standards and delivering only the highest quality products to our esteemed customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. We have amassed an unrivaled wealth of technical expertise, positioning ourselves as market leaders with a stellar reputation for excellence. Our unmatched prowess in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes. This places us as the preferred choice in the medical sector, where our precision and reliability are trusted and valued.
With four strategically positioned production bases, in the bustling centers of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence and 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)