Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we personify a steadfast dedication to achieving unparalleled excellence, transforming our craftsmanship into a celebrated art form. Our unyielding quest for perfection fuels our drive to excel in both the intricate artistry of precision and the pioneering science of manufacturing innovation. Our unparalleled expertise radiates as a beacon of unmatched precision, illuminating the prestigious realm of high-end component manufacturing. Leading the charge at the cutting edge of innovation, we set the benchmark in designing and engineering revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a wide spectrum of industries, adeptly addressing a myriad of needs with precision applications, including:
- Medical and Biotech: Crafting meticulously engineered, exceedingly accurate components and avant-garde solutions tailored to shape the future of medical technology.
- Semiconductors: Enhancing chip production and related essential equipment with indispensable core components.
- New Energy: Playing a crucial role in the sustainable evolution of cutting-edge energy equipment.
- Automotive: Delivering essential components that fuel innovation within the automotive industry, fostering the growth of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving pivotal sectors such as medical, automation, semiconductor, and automotive industries with exceptional distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an awe-inspiring fleet of over 300 of the industry's most state-of-the-art machinery units. This elite collection guarantees our leadership with an extensive and ever-evolving range of equipment categories. We proudly blaze a trail in innovation and flexibility across various industrial domains. These top-tier branded machinery units serve as the bedrock of our precision-driven manufacturing. Empowering us to master the complex and rigorous machining demands of diverse industries with unrivaled precision and efficiency, our extensive capabilities ensure strict adherence to the highest quality standards. We offer bespoke customization, expertly crafted to cater to the distinct needs of our esteemed clientele, consistently elevating their expectations with each project.
- With a distinguished 20-year legacy, we possess a profound wealth of manufacturing experience, seamlessly integrating technical expertise and process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise enables us to reliably deliver exceptional products that not only meet but exceed expectations, establishing new benchmarks in industry standards.
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 Thorough Incoming Material Inspection: Exceeding Industry Standards
In our state-of-the-art warehouse, each raw material is subjected to a rigorous and comprehensive evaluation that sets a new standard for quality assurance excellence. Our meticulous procedure involves a detailed analysis of chemical compositions alongside an exhaustive examination of physical characteristics. We maintain stringent standards, requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring only premium materials are selected for our precision-driven medical machining services. This rigorous authentication process guarantees the integrity and purity of materials, consistently meeting our elevated benchmarks of quality and precision.
Diligent In-Process Quality Control: Striving for Perfection
Throughout the intricate machining process, every component undergoes rigorous inspection to ensure its dimensions and tolerances adhere to our exacting specifications. Our diligent inspection protocol continuously identifies and intercepts any potential defects, preventing non-conforming parts from advancing further. This vigilant strategy significantly diminishes the risk of substandard goods, ensuring that superior quality is meticulously sustained at every critical stage of production.
Proactive and Thorough First Article Inspection (FAI): A Foundation for Excellence
Our First Article Inspection (FAI) process forms the cornerstone of our quality strategy, adeptly identifying and addressing potential production challenges from the outset. This preventive approach ensures that issues are addressed before escalating to mass production, thereby ensuring a smooth flow of flawless production. Our comprehensive FAI process plays a crucial role in minimizing quality risks, ensuring our products consistently meet the highest standards, reinforcing our unwavering commitment to excellence throughout the production lifecycle.
Comprehensive and Detailed Final Inspection: The Ultimate Quality Guardian
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This thorough evaluation encompasses dimensions, visual appearance, performance, and any specific customer requirements. Our extensive inspection process is a testament to our unwavering dedication to quality, ensuring that every dispatched part meets our stringent standards, delivering only the highest quality products to our esteemed and valued clients.
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. Over the past two decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs 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 remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging 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)