Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unyielding devotion to brilliance, passionately striving to reach the pinnacle of manufacturing expertise. Our fervor is deeply embedded in the intricate art of refined craftsmanship and the advanced science behind it. Our extraordinary expertise paves the luminous path of precision, guiding us through the distinguished domain of elite component creation with unparalleled proficiency. As trailblazers of innovation, we set the standard for groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a wide array of industries, meticulously addressing diverse requirements in numerous applications, including:
- Medical and Biotech: Providing meticulously designed, ultra-precision components and pioneering solutions tailored for the advancement of future medical technologies.
- Semiconductors: Elevating chip production and its associated technologies with indispensable, critical components.
- New Energy: Playing a pivotal role in the groundbreaking, sustainable evolution of cutting-edge energy solutions.
- Automotive: Supplying key components that drive innovation in the automotive realm, supporting the progression of smart and electric vehicle technologies.
Main Products
- Precisely crafted, non-standard customized components that serve crucial sectors like medical, automation, semiconductor, and automotive industries with unmatched superiority.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are distinguished by an unrivaled fleet of over 300 of the industry's most advanced machinery units. This ensures a vast and diverse catalog of equipment categories, empowering us to lead in innovation and adaptability. We offer cutting-edge solutions that keep our clients at the forefront of technological advancement. These Top-Tier Branded Machinery units are the backbone of our precision-focused manufacturing. Equipped with these high-caliber machines, we excel in fulfilling intricate and demanding machining requirements across diverse industries with exceptional precision and efficiency. Our extensive capabilities guarantee strict adherence to the highest quality standards while offering bespoke customization, meticulously designed to meet the unique needs of our valued clients.
- With an illustrious 20-year legacy, we leverage a wealth of manufacturing experience, seamlessly merged with substantial technical expertise and process strengths. This ensures superior quality and groundbreaking innovation. Our enduring expertise allows us to consistently deliver extraordinary products that exceed expectations, setting new industry benchmarks.
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: Unrivaled Precision Surpassing Industry Standards
Every piece of raw material entering our secure warehouse is subjected to an exhaustive evaluation process, setting an unparalleled benchmark in quality assurance. Our meticulous approach delves into an in-depth analysis of chemical composition and a thorough examination of physical properties. Our unwavering commitment to excellence demands that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity, ensuring only the finest materials are utilized in our high-precision medical machining services. Such rigorous authentication guarantees the integrity and purity of materials, steadfastly adhering to our consistently high standards, providing our clients with unmatched quality and reliability.
Rigorous In-Process Quality Control: Unyielding Vigilance in Pursuit of Perfection
Throughout the intricate machining process, each component is meticulously scrutinized to ensure its dimensions and tolerances meet our exacting specifications. This continual inspection protocol proactively intercepts potential defects, ensuring non-conforming parts are halted before advancing. Through this vigilant approach, we significantly mitigate the risk of producing substandard goods, maintaining superior quality at every production stage, thus ensuring our reputation for excellence remains untarnished.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Precision and Excellence
Our First Article Inspection (FAI) forms the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the very start. This proactive approach ensures potential issues are swiftly addressed, preventing them from escalating during mass production. Our comprehensive FAI process is vital for minimizing quality risks, ensuring our products consistently achieve the highest standards, and reflecting our unwavering dedication to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality and Precision
Before any product leaves our facility, it undergoes a meticulous final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, and performance, alongside customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring every part dispatched aligns with our exacting standards, consistently delivering only the highest quality products to our esteemed and valued customers, cementing their trust and satisfaction.
Packaging & Shipping
Company Profile
Established in the vibrant year of 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of precision and innovation in the world of high-precision component machining. Our journey, fueled by passion and unwavering dedication to engineering's art and science, has proudly spanned over two decades. We have passionately carved our niche as pioneers in precision engineering, relentlessly pursuing technical research and setting industry benchmarks for excellence. We have accumulated an unmatched depth of technical expertise, distinguishing ourselves as market leaders with a renowned reputation for unparalleled excellence. Our supreme mastery in precision medical machining services consistently meets the most stringent tolerances and delivers impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability earn trust and admiration from our esteemed clientele.
With four strategically located production bases, in the dynamic hubs of Shenzhen and Guiyang, powered by an inspiring workforce of over 400 highly skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This chain seamlessly connects research and development, production, and delivery, guaranteeing that we meet and exceed the varied needs of our clients with remarkable efficiency and unsurpassed quality. Our state-of-the-art facilities are fully equipped to handle the most complex and challenging machining tasks, reinforcing 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)