Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are a beacon of unwavering dedication to excellence, seamlessly weaving artistry into the fabric of precision. Our relentless passion for perfection not only fuels our journey but also elevates the intricate craftsmanship and advanced scientific innovation that defines our manufacturing prowess. Our unmatched expertise acts as a radiant guiding light, illuminating the path to exceptional precision in the prestigious realm of high-end component manufacturing. Standing at the forefront of innovation, we set the standard for excellence in the conceptualization and creation of revolutionary intelligent automation equipment. Our cutting-edge solutions are designed to seamlessly integrate across a vast array of industries, addressing diverse needs with pinpoint accuracy in applications such as:
- Medical and Biotech: Meticulously engineered with ultra-precision, our components and pioneering solutions are tailored to shape the future landscape of medical technology.
- Semiconductors: Empowering the production of chips and essential equipment with core components that are indispensable to the industry.
- New Energy: Playing a vital role in the innovative and sustainable transformation of cutting-edge energy technologies.
- Automotive: Supplying crucial components that fuel innovation in the automotive sector, propelling the development of smart and electric vehicles to new heights.
Main Products
- Ingeniously designed non-standard customized components, serving key industries such as medical, automation, semiconductor, and automotive with unparalleled excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by a formidable fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures that we uphold a comprehensive and versatile inventory of equipment categories, enabling us to spearhead innovation and adaptability across various industrial landscapes with unmatched prowess. These top-tier branded pieces of machinery form the foundational cornerstone of our precision-driven manufacturing processes. Empowered to meet the intricate and challenging machining demands of diverse sectors with outstanding precision and unparalleled efficiency, our expansive capabilities guarantee compliance with the highest echelon of quality standards. We provide bespoke customization, meticulously crafted to align with the unique demands of our esteemed clientele, consistently elevating their expectations with each endeavor.
- With an illustrious 20-year legacy, we possess a vast reservoir of manufacturing experience, seamlessly interwoven with deep technical expertise and robust process strengths. This guarantees the delivery of superior quality and pioneering innovation. Our enduring expertise enables us to consistently produce extraordinary products that not only meet but exceed expectations, establishing 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 Analysis: Surpassing Industry Benchmarks
Within our state-of-the-art warehousing facilities, each piece of raw material is subjected to a rigorous and comprehensive evaluation process that sets a new benchmark in quality assurance. Our meticulous protocol includes a detailed analysis of the chemical composition alongside an exhaustive examination of the physical attributes. We demand only the highest level of excellence, requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring only the finest materials are chosen for our high-precision medical machining services. This rigorous authentication process guarantees the integrity and purity of the materials, consistently aligning with our elevated standards of quality and precision.
Meticulous In-Process Quality Assurance: Pursuing Perfection
Throughout the sophisticated machining process, every component is meticulously scrutinized to ensure that its dimensions and tolerances meet our exacting specifications. Our diligent inspection protocol is designed to continuously intercept potential defects and prevent non-conforming parts from progressing further. This vigilant approach dramatically reduces the risk of producing substandard goods, ensuring that superior quality is consistently maintained at every critical stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process serves as the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges right from the start. This proactive methodology ensures that issues are prevented from escalating into mass production, securing a seamless flow of flawless manufacturing. Our comprehensive FAI process is vital for minimizing quality risks, ensuring that our products consistently meet the highest standards, reflecting our unwavering commitment to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it is subjected to an exhaustive and meticulous final inspection. This rigorous evaluation process includes a comprehensive examination of dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection highlights our relentless dedication to quality, ensuring that every part dispatched meets our stringent standards and delivers only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon the 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, we have emerged as trailblazers in precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of 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 makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
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)