Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unyielding quest for perfection and dedication to the art of precision craftsmanship exemplify our unwavering commitment to impeccable quality. Each product is a testament to our meticulous attention to detail and expert engineering. Our exceptional proficiency serves as a guiding light, elevating us in the highly esteemed arena of component manufacturing. Our mastery and dexterity reinforce our position as industry pioneers, driving us forward with unparalleled expertise. As trailblazers in innovation, we establish the gold standard in crafting and delivering avant-garde intelligent automation equipment. Our advanced solutions are seamlessly integrated into a multitude of industries, catering to a wide spectrum of applications, including:
- Medical and Biotech: Delivering impeccably engineered, ultra-precise components and next-generation solutions for cutting-edge medical devices, guaranteeing accuracy and dependability.
- Semiconductors: Elevating chip manufacturing and its ancillary apparatus with indispensable components that are vital and irreplaceable, propelling advancements in semiconductor technologies.
- New Energy: Making profound contributions to the pioneering and sustainable progression of innovative energy equipment, championing eco-friendly advancements.
- Automotive: Supplying crucial components that redefine the automotive landscape, fostering the development of intelligent and electric vehicles, expanding the horizons of innovation.
Main Products
- Our exquisitely crafted, non-standard customized components serve pivotal industries like medical, automation, semiconductor, and automotive sectors, delivering unparalleled excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly boast a remarkable assembly of over 300 of the industry's most cutting-edge machinery units. This positions us as pioneers in innovation and versatility, ensuring that we deliver state-of-the-art solutions. Our vast and varied equipment lineup secures our position as leaders at the forefront of technological advancement, allowing us to adapt and excel continuously. These Top-Tier Branded machinery units truly form the bedrock of our unwavering commitment to precision-driven manufacturing excellence. Armed with these extraordinary machines, we adeptly conquer complex and demanding machining challenges across numerous industries, achieving remarkable precision and efficiency. Our broad capabilities ensure adherence to the highest quality standards while offering bespoke customization, meticulously crafted to satisfy the unique preferences of our esteemed clientele.
- With an illustrious 20-year legacy, we draw upon an extensive reservoir of manufacturing expertise, seamlessly interwoven with profound technical knowledge and process acumen. This combination guarantees unmatched quality and pioneering innovation. Our enduring proficiency enables us to deliver outstanding products that not only meet but exceed expectations, setting new benchmarks in the industry.
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 Standards with Unrivaled Precision
Within the confines of our highly secure warehouse, each and every raw material is subjected to an exhaustive and meticulous evaluation, setting a new benchmark for quality assurance. Our comprehensive approach delves deeply into detailed chemical composition analyses and thorough examinations of physical properties. To ensure unparalleled excellence, we mandate that each supplier provides a genuine Certificate of Origin and a stamped Declaration of Conformity. This allows only the finest, most pristine materials to be utilized in our high-precision medical machining services. This rigorous and thorough authentication process guarantees material integrity and purity, continually upholding our exceptionally high standards, and reaffirming our commitment to quality.
Rigorous In-Process Quality Control: Continuously Striving for Perfection with Unyielding Vigilance
Throughout the intricate and precise machining journey, each component undergoes meticulous and detailed scrutiny to ensure alignment with our exacting specifications in terms of dimensions and tolerances. This continuous and vigilant inspection protocol is designed to proactively intercept and eliminate potential defects, ensuring that non-conforming parts are prevented from advancing further in the process. By maintaining steadfast and unwavering vigilance, we significantly reduce the risk of substandard goods infiltrating the production line, thus safeguarding superior quality at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence and Precision
Our First Article Inspection (FAI) serves as the cornerstone of our robust manufacturing strategy, skillfully pinpointing and resolving potential production challenges right from the start. This proactive and forward-thinking approach effectively prevents issues from escalating into major production dilemmas. Our comprehensive FAI process is vital for minimizing quality risks and ensuring our products consistently meet the highest standards, reflecting our unwavering commitment to excellence and precision throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality and Precision
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection process. This rigorous evaluation encompasses all aspects, including dimensions, visual appeal, performance, and adherence to specific customer requirements. Our extensive and detailed inspection underscores our relentless dedication to quality, ensuring that each dispatched part meets our stringent and rigorous standards. We are committed to delivering only the highest quality products to our esteemed and valued customers, reinforcing our reputation for excellence and precision.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with our roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a paragon of precision and innovation in the world of high-precision component machining. Our extraordinary journey, imbued with a boundless passion and steadfast commitment to engineering's art and science, spans over two impressive decades. We have expertly carved our niche as leaders in precision engineering, fervently advancing technical research and establishing industry standards of unparalleled brilliance. We possess an extraordinary depth of technical expertise, distinguishing us as market leaders with a revered reputation for outstanding excellence. Our supreme proficiency in precision medical machining services consistently meets the most demanding tolerances and delivers flawless surface finishes. This cements our position as the premier choice in the medical sector, where our precision and dependability continue to earn unwavering trust and admiration from our esteemed clientele.
With four strategically located production bases, positioned in the thriving and dynamic centers of Shenzhen and Guiyang, backed by an exceptionally skilled team of over 400 dedicated employees, Donghui has carefully cultivated a robust, vertically integrated industry chain. This seamlessly connects research and development, premier production, and flawless delivery, ensuring that we meet and surpass the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most intricate and challenging machining tasks, reinforcing our esteemed reputation for excellence and pioneering 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)