Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately dedicated to achieving unsurpassed excellence, transforming our craftsmanship into a true art form. Our unwavering pursuit of perfection propels us to excel in the intricate art of precision, while pioneering the science of manufacturing innovation. Our expertise radiates as a guiding light of unparalleled precision, leading the way in the esteemed domain of high-end component manufacturing. At the cutting edge of innovation, we set the benchmark in the design and engineering of revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a wide range of industries, skillfully meeting a diverse array of needs with precision applications, including:
- Medical and Biotech: We craft precisely engineered, highly accurate components and pioneering solutions tailored to shape the future of medical technology, ensuring the highest standards of quality and innovation.
- Semiconductors: We elevate chip production and the essential related equipment through indispensable core components, ensuring precision and reliability in every detail.
- New Energy: We are instrumental in the sustainable evolution of innovative energy equipment, playing a vital role in driving forward the future of energy technology.
- Automotive: We supply critical components that spur innovation within the automotive industry, supporting the growth of intelligent and electric vehicles with cutting-edge technology.
Main Products
- Exquisitely crafted non-standard customized components, distinguished in serving key sectors such as the medical, automation, semiconductor, and automotive industries with exceptional precision and excellence.
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: Precision Beyond the Pinnacle of Industry Standards
Amidst our state-of-the-art warehousing facilities, every single raw material undergoes exhaustive scrutiny to redefine excellence in quality assurance. Our comprehensive process includes a deep dive into the chemical compositions and a meticulous examination of physical properties. We demand the utmost from our suppliers, requiring a Certificate of Origin paired with a stamped Declaration of Conformity. This ensures only the finest materials are chosen for our precision-focused medical machining services. This rigorous validation process guarantees that the purity and integrity of materials consistently meet-and often exceed-our ambitious benchmarks for precision and superior quality.
Rigorous In-Process Quality Control: An Unyielding Quest for Perfection
Throughout our sophisticated machining process, each component is subjected to thorough inspection, ensuring dimensions and tolerances precisely align with our exacting standards. Our vigilant inspection protocol is perpetually alert, swiftly identifying potential imperfections to prevent any non-conforming parts from advancing further. This proactive attention significantly mitigates the risk of producing subpar products, thereby ensuring that exceptional quality is maintained relentlessly at every critical juncture of production.
Proactive and Comprehensive First Article Inspection (FAI): The Cornerstone of Unmatched Excellence
Our First Article Inspection (FAI) protocol is the cornerstone of our quality strategy, expertly pinpointing and addressing potential production obstacles at the outset. This anticipatory approach resolves issues before mass production, ensuring a seamless flow of impeccable production. Our all-encompassing FAI process is crucial for minimizing quality risks, ensuring our offerings always meet the highest standards and embody our steadfast commitment to excellence throughout the entire production lifecycle.
Extensive and Detailed Comprehensive Final Inspection: The Ultimate Sentinel of Quality
Before any product exits our facility, it undergoes an exhaustive and detailed final inspection. This meticulous evaluation examines dimensions, visual aesthetics, performance, and specific customer requirements. Our thorough inspection process is a testament to our unwavering dedication to quality, ensuring each dispatched product conforms to our stringent standards, thereby consistently delivering only the finest top-tier products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Established in 2009 with visionary roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become synonymous with mastery in high-precision component machining. Over the past two decades, our relentless dedication to innovation and excellence has catapulted us to the forefront of precision engineering. Through pioneering solutions and relentless technical exploration, we have positioned ourselves as industry leaders, consistently setting new benchmarks for unrivaled excellence. Our company takes great pride in our extraordinary depth of technical expertise, establishing ourselves as market leaders renowned for unmatched excellence. Our superior proficiency in precision medical machining services not only achieves the most exacting tolerances but also delivers impeccable surface finishes. This expertise firmly places us as the premier choice in the medical sector, where our precision and reliability are highly valued and indispensable to healthcare professionals and industry specialists alike.
With four strategically located production bases, situated in the dynamic innovation hubs of Shenzhen and Guiyang, and supported by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously engineered a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to consistently meet and exceed the diverse demands of our clients with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and challenging machining projects, 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)