Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion to excellence is not just a responsibility; it is driven by an insatiable passion for excelling in the sophisticated art and intricate science of manufacturing mastery. Our dedication transforms challenges into triumphs and aspirations into reality, embodying the pinnacle of precision engineering. Our unrivaled expertise shines brightly, illuminating the path to precision as a beacon of excellence in the elite sphere of top-tier component manufacturing. We are the vanguards, ensuring accuracy and quality are never compromised. As pioneers at the forefront of innovation, we define the standards in designing and crafting revolutionary intelligent automation equipment. Our cutting-edge solutions elegantly integrate across a broad array of industries, addressing diverse requirements with precision and versatility in numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions tailored for the revolutionary evolution of next-generation medical devices and healthcare technology.
- Semiconductors: Enhancing chip production and its associated equipment with indispensable core components, driving forward the technological prowess of the semiconductor industry.
- New Energy: Playing a pivotal role in the cutting-edge innovation and sustainable advancement of state-of-the-art energy equipment, leading the charge towards a greener future.
- Automotive: Delivering essential components that fuel innovation within the automotive industry, propelling the development of smart and electric vehicles into the future.
Main Products
- Masterfully crafted non-standard customized components, serving critical sectors like medical, automation, semiconductor, and automotive industries with exemplary distinction and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most advanced machinery units, ensuring we possess a wide-ranging catalog of equipment categories. This vast array allows us to maintain the forefront of innovation and adaptability. These top-tier branded machinery units serve as the foundation of our precision-focused manufacturing, enabling us to deftly address the multifaceted and rigorous machining requirements across a diverse spectrum of industries with remarkable precision and efficiency. Our extensive capabilities ensure we adhere to the highest standards of quality and provide bespoke customization, meticulously adapted to the distinctive needs of our esteemed clients.
- With a distinguished 20-year legacy, we wield an abundant reservoir of manufacturing experience, seamlessly blended with significant technical expertise and process strengths, assuring superior quality and pioneering innovation. This enduring expertise equips us to consistently deliver extraordinary products that exceed expectations and redefine 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: Surpassing Industry Benchmarks
Every single piece of raw material entering our fortress-like warehouse is subjected to an exhaustive, rigorous evaluation process that sets a gold standard in quality assurance. Our meticulous approach involves an in-depth analysis of the chemical composition and a comprehensive examination of physical properties. Our unwavering dedication to excellence mandates that each supplier provides a Certificate of Origin, accompanied by a stamped Declaration of Conformity. This guarantees the selection of only the finest materials for our high-precision medical machining services. Such rigorous authentication safeguards the integrity and purity, consistently upholding our high standards.
Rigorous In-Process Quality Control: The Pursuit of Perfection
Throughout the intricate machining process, each component undergoes meticulous scrutiny to verify alignment with our exacting specifications in dimensions and tolerances. This diligent, continual inspection protocol proactively intercepts potential defects, preventing non-conforming parts from advancing further. Our vigilant approach significantly reduces the risk of producing large quantities of substandard goods, ensuring superior quality is maintained at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) is the cornerstone of our strategy, adeptly identifying and eliminating potential production challenges from the onset. This proactive approach ensures issues are prevented from escalating into mass production. Our comprehensive and precise FAI process is crucial for minimizing quality risks, consistently achieving the highest standards and reflecting our unwavering dedication to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a detailed, meticulous final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection is a testament to our relentless commitment to quality, ensuring that every dispatched part meets our exacting standards, delivering only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, born from a visionary foundation in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has fervently dedicated itself to the mastery of high-precision component machining. With an unwavering zeal for innovation spanning the past two decades, we have emerged as pioneers and trailblazers in the intricate world of precision engineering. Through relentless and groundbreaking technical research, we have proudly established ourselves as industry forerunners, setting unparalleled benchmarks of excellence. We have amassed an exceptional wealth of technical expertise, earning our position as market leaders with an unblemished reputation for excellence. Our superior prowess in precision medical machining services consistently achieves the most stringent tolerances and impeccable surface finishes. This positions us as the preferred partner in the medical sector, where our precision and reliability are not only trusted but also highly revered and valued.
With four strategically located production bases, nestled in the bustling hubs of Shenzhen and Guiyang, and driven by our ambitious workforce exceeding 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to tackle the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence and cutting-edge 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)