Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are the epitome of excellence, transforming our superior craftsmanship into an art form. Our unwavering dedication to perfection propels us to excel in the intricate artistry of precision and the revolutionary science of manufacturing innovation. Our expertise radiates as a beacon of unparalleled precision, illuminating the elite realm of high-end component manufacturing with unmatched mastery. Leading the vanguard of innovation, we define the benchmarks in designing and engineering revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a wide spectrum of industries, expertly catering to diverse demands with precision applications, including:
- Medical and Biotech: Meticulously crafting precision-engineered, ultra-accurate components and pioneering solutions that are poised to shape the future of medical technology.
- Semiconductors: Advancing chip production and its critical equipment with indispensable core components.
- New Energy: Instrumental in the sustainable progression of cutting-edge energy equipment evolution.
- Automotive: Delivering essential components that drive the innovation within the automotive sector, nurturing the expansion of intelligent and electric vehicles.
Main Products
- Masterfully engineered non-standard customized components, serving pivotal sectors like medical, automation, semiconductor, and automotive industries with extraordinary distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are bolstered by an extraordinary fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures we maintain a vast and dynamic range of equipment categories, empowering us to stay at the cutting edge of innovation and adaptability across various industrial landscapes. These premium branded machinery units form the backbone of our precision-focused manufacturing endeavor. Allowing us to meet the multifaceted and demanding machining needs of diverse industries with impeccable precision and efficiency, our extensive capabilities guarantee adherence to the highest quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique requirements of our distinguished clients, consistently surpassing 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 ensures 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: Setting Unprecedented Industry Benchmarks with Unmatched Precision
Within our cutting-edge warehouse, all raw materials are subjected to an exhaustive, meticulous evaluation, redefining excellence in quality assurance. This involves a comprehensive chemical analysis and an extensive physical attribute examination, ensuring utmost precision. Suppliers are mandated to furnish a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous process guarantees that only the finest materials are selected, securing the purity and integrity crucial for our precision-driven medical machining services. Our unyielding validation measures consistently meet and exceed our elevated standards of precision and quality.
Rigorous In-Process Quality Control: Relentlessly Pursuing Perfection
Throughout the sophisticated machining process, every component undergoes meticulous inspection to confirm its dimensions and tolerances match our exacting specifications. Our vigilant inspection protocol adeptly intercepts any potential defects, preventing non-conforming parts from advancing. This diligent methodology dramatically reduces the risk of substandard products, ensuring that extraordinary quality is meticulously preserved at every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Establishing a Framework for Unparalleled Excellence
Our First Article Inspection (FAI) is the bedrock of our quality strategy, expertly identifying and resolving potential production issues from the very start. This proactive approach addresses challenges before mass production, ensuring a smooth and flawless production flow. The thoroughness of our FAI process is crucial in minimizing quality risks, consistently ensuring our products meet the highest standards, highlighting our steadfast commitment to excellence throughout the production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Paramount Standard of Quality
Before any product leaves our facility, it is subjected to an exhaustive and meticulous final inspection. This comprehensive evaluation covers dimensions, visual aesthetics, performance, and custom client specifications. Our thorough inspection process epitomizes our unwavering commitment to quality, ensuring every dispatched product aligns with our rigorous standards, thereby delivering only the finest offerings to our esteemed clientele.
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 and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled 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 solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
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)