Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are dedicated to delivering unparalleled excellence, where craftsmanship is elevated to an exquisite art form. Our unwavering pursuit of perfection propels us to excel in the meticulous art of precision, marrying it seamlessly with the groundbreaking science of manufacturing innovation. Our expertise radiates as a beacon of unmatched precision, illuminating the prestigious field of high-end component manufacturing with excellence. Pioneering at the forefront of innovation, we set the gold standard in designing and engineering revolutionary intelligent automation equipment. Our trailblazing solutions integrate seamlessly across a vast array of industries, adeptly meeting diverse needs with precision applications, including:
- Medical and Biotech: Crafting precision-engineered, highly accurate components and innovative solutions to shape the future of medical technology.
- Semiconductors: Enhancing chip production and related essential equipment through indispensable core components.
- New Energy: Playing a pivotal role in the sustainable advancement of innovative energy equipment.
- Automotive: Supplying vital components that drive innovation in the automotive industry, fostering the growth of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving critical 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 extraordinary fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures we uphold a vast and dynamic array of equipment categories, enabling us to remain at the forefront of innovation and adaptability across various industrial landscapes. These premium branded machinery units form the backbone of our precision-focused manufacturing. Empowering us to meet the multifaceted and challenging machining demands of diverse industries with outstanding precision and efficiency, our extensive capabilities guarantee adherence to the utmost quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique requirements of our distinguished clientele, consistently elevating their expectations with every project.
- With an illustrious 20-year legacy, we possess a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise equips us to consistently deliver extraordinary products that not only meet but exceed expectations, setting 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 Rigorous Incoming Material Inspection: Elevating Industry Standards with Unmatched Precision
Within our cutting-edge warehouse, every raw material is subjected to a comprehensive and rigorous evaluation process, setting unprecedented benchmarks for quality assurance. Our meticulous approach includes an exhaustive analysis of chemical compositions along with an extensive examination of physical attributes. We uphold the highest standards by requiring suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only superior materials are chosen for our precision-driven medical machining services. This stringent validation process guarantees the purity and integrity of materials, consistently meeting and surpassing our elevated benchmarks of precision and quality.
Stringent In-Process Quality Control: A Continuous Quest for Perfection
Throughout the intricate machining process, each component undergoes meticulous inspection to ensure its dimensions and tolerances adhere to our stringent specifications. Our rigorous protocol remains ever vigilant, intercepting any potential defects to prevent non-conforming parts from advancing further. This diligent approach drastically reduces the risk of substandard products, ensuring that exceptional quality is consistently upheld at every critical stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Pioneering a Framework for Unmatched Excellence
Our First Article Inspection (FAI) procedure is integral to our quality strategy, adeptly identifying and resolving potential production challenges from the very outset. This proactive approach ensures issues are addressed prior to mass production, facilitating a seamless flow of flawless production. Our thorough FAI process is essential for minimizing quality risks, continuously ensuring our offerings meet the highest standards and underscoring our unwavering dedication to excellence across the entire production lifecycle.
Exhaustive and Detailed Comprehensive Final Inspection: The Pinnacle of Quality Assurance
Before any product leaves our facility, it undergoes a thorough and painstaking final inspection. This meticulous evaluation covers dimensions, visual appeal, performance, and bespoke customer requirements. Our exhaustive inspection process is a testament to our unwavering dedication to quality, ensuring each dispatched piece meets our rigorous standards, thereby delivering only the highest quality products to our esteemed and valued clientele.
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)