Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we redefine commitment to precision, elevating it from a mere responsibility to an art form. Our relentless drive for excellence fuels our pursuit of innovation, ensuring mastery in both intricate craftsmanship and cutting-edge manufacturing technology. Our unparalleled expertise serves as a beacon of precision excellence, guiding the prestigious field of high-end component manufacturing with unmatched authority. Leading the forefront of innovation, we set the gold standard for excellence in designing and crafting revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, adeptly addressing a wide array of precise applications including:
- Medical and Biotech: Delivering meticulously engineered, ultra-precise components and pioneering solutions poised to shape the future of medical technology.
- Semiconductors: Optimizing chip production and related essential equipment with indispensable core components.
- New Energy: Fostering the innovative and sustainable evolution of groundbreaking energy equipment.
- Automotive: Providing critical components that propel innovation in the automotive sector, supporting the advancement of intelligent and electric vehicle technologies.
Main Products
- Masterfully crafted non-standard customized components, serving vital sectors such as medical, automation, semiconductor, and automotive industries with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by an extraordinary fleet of over 300 of the industry's leading-edge machinery units. This elite collection ensures we maintain a diverse and dynamic range of equipment categories, enabling us to spearhead innovation and adaptability across a multitude of industrial sectors. These top-tier branded machinery units form the bedrock of our precision-centric manufacturing. Enabling us to meet the multifaceted and challenging machining demands of various industries with unparalleled precision and efficiency, our expansive capabilities ensure compliance with the highest quality standards. We offer tailored customization, meticulously designed to fulfill the distinctive needs of our esteemed clients, consistently surpassing their expectations with each project.
- With a distinguished 20-year legacy, we possess a rich tapestry of manufacturing experience, seamlessly integrating profound technical expertise and process strengths. This guarantees the delivery of superior quality and pioneering innovation. Our enduring expertise enables us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new 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: Elevating Industry Standards
In our cutting-edge warehouse, every raw material is subjected to a rigorous and comprehensive evaluation process that epitomizes the pinnacle of quality assurance. Our meticulous evaluation encompasses an in-depth analysis of the chemical composition and a thorough examination of physical attributes. We uphold excellence by mandating each supplier provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the most superior materials are chosen for our high-precision medical machining services. This exacting authentication ensures the integrity and purity of materials, consistently aligning with our elevated standards of quality and precision, thereby establishing a benchmark for the industry.
Rigorous In-Process Quality Control: Achieving Perfection
Throughout the intricate machining process, every component undergoes precise scrutiny to ensure its dimensions and tolerances align with our stringent specifications. Our rigorous inspection protocol is designed to continuously intercept potential defects, thwarting non-conforming parts from progressing further. This vigilant approach substantially reduces the risk of substandard production, guaranteeing that exceptional quality is maintained at every pivotal stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process is pivotal to our strategy, adeptly identifying and resolving potential production challenges from the outset. This forward-thinking approach ensures that issues are prevented from escalating into mass production, securing a seamless flow of flawless production. Our comprehensive FAI process is indispensable for minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering dedication to excellence throughout the production cycle. This commitment to quality guarantees that production flows flawlessly, providing our clients with unparalleled reliability and trust.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous evaluation extends to dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection process is a testament to our relentless commitment to quality, ensuring every part dispatched meets our exacting standards, delivering only the highest quality products to our esteemed and valued customers. We ensure that every aspect of quality is scrutinized before departure, reinforcing our reputation for excellence and dependability in the industry.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its 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)