Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are the embodiment of a commitment to unparalleled excellence, transforming craftsmanship into an exquisite art form. Our relentless pursuit of perfection propels us to excel in both the meticulous artistry of precision and the groundbreaking science of manufacturing innovation. Our mastery is a shining beacon of unmatched precision, illuminating the path in the prestigious realm of high-end component manufacturing. We are dedicated to setting the standard in this competitive field. Leading the charge at the forefront of innovation, we are setting the benchmark in the design and engineering of revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a diverse array of industries, adeptly addressing a multitude of needs with precision applications, including:
- Medical and Biotech: Meticulously crafting precisely engineered and exceptionally accurate components, we pioneer solutions that are tailored to shape the future of medical technology.
- Semiconductors: Revolutionizing chip production with indispensable core components, elevating the quality and efficiency of essential equipment in the semiconductor industry.
- New Energy: Playing a pivotal role in the sustainable advancement of innovative energy equipment, we are at the forefront of the new energy revolution.
- Automotive: Supplying vital components that drive progressive innovation within the automotive industry, fostering the growth of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving key sectors with exceptional distinction in the medical, automation, semiconductor, and automotive industries.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by a remarkable fleet, boasting over 300 of the industry's most advanced and innovative machinery units. This elite collection not only fortifies our capabilities but also ensures an extensive and dynamic array of equipment categories. It positions us as frontrunners in driving innovation and adaptability across diverse industrial landscapes. These top-tier branded machinery units are the bedrock of our precision-focused and advanced manufacturing processes. Empowering us to meet the complex and rigorous machining demands of a wide range of industries, our robust capabilities guarantee adherence to the highest quality standards. We specialize in bespoke customization, meticulously crafted to meet the unique needs of our esteemed clientele, consistently exceeding their expectations with every project we undertake.
- With a prestigious 20-year legacy, we possess a profound wealth of manufacturing experience, seamlessly integrated with deep technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our longstanding expertise enables us to consistently produce extraordinary products that not only meet but surpass expectations, setting new benchmarks for 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: Surpassing Industry Benchmarks
At our state-of-the-art warehouse, each raw material undergoes an exhaustive and meticulous evaluation, setting a new standard in quality assurance. Our thorough procedure incorporates a comprehensive analysis of chemical compositions alongside an all-inclusive examination of physical properties. We maintain the highest standards, requiring every supplier to provide a Certificate of Origin accompanied by a stamped Declaration of Conformity, ensuring that only the finest materials are selected for our precision-driven medical machining services. This rigorous verification process assures material integrity and purity, consistently aligning with our superior benchmarks of quality and precision.
Rigorous In-Process Quality Control: Unwavering Pursuit of Perfection
Throughout the intricate machining process, each component is rigorously scrutinized to ensure its dimensions and tolerances align with our demanding specifications. Our diligent inspection protocols actively intercept potential defects, preventing non-conforming parts from advancing. This vigilant methodology significantly diminishes the risk of substandard products, ensuring that superior quality is meticulously sustained at every crucial stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process forms the foundation of our quality strategy, deftly identifying and resolving potential production challenges from the outset. This forward-thinking approach ensures issues are contained before they escalate to mass production, thus ensuring a seamless flow of impeccable production. Our comprehensive FAI process is essential for minimizing quality risks, guaranteeing our products consistently meet the highest standards, emphasizing our unwavering dedication to excellence throughout the production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product departs our premises, it undergoes a meticulous and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appearance, performance, and any specific customer requirements. Our exhaustive inspection process stands as a testament to our unyielding commitment to quality, ensuring each dispatched part meets our stringent standards, thereby delivering only the most superior products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon a visionary foundation set in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has fervently dedicated itself to mastering the intricate art and science of high-precision component machining. Throughout two momentous decades, our relentless pursuit of innovation and excellence has firmly positioned us as trailblazers in precision engineering. Through relentless technical research and pioneering solutions, we have carved a niche as industry pioneers, setting standards of unparalleled excellence that echo through the industry. Our company boasts a wealth of exceptional technical expertise, affirming our stature as market leaders renowned for unmatched excellence. Our superior capabilities in precision medical machining services consistently meet the most stringent tolerances and achieve flawless surface finishes. This distinction solidifies our position as the top choice in the medical sector, where our precision and reliability are esteemed as indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, supported by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously engineered a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures 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 tackle the most intricate and challenging machining tasks, further 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)