Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we symbolize an unparalleled commitment to excellence, transforming our craftsmanship into a masterful art form. Our relentless quest for perfection propels us to excel in both the intricate art of precision and the revolutionary science of manufacturing innovation. Our expertise shines brilliantly as a beacon of unrivaled precision, illuminating the prestigious domain of high-end component manufacturing. Leading the charge at the forefront of innovation, we establish the benchmark in designing and engineering revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a wide spectrum of industries, skillfully addressing a multitude of needs with precision applications, including:
- Medical and Biotech: Crafting meticulously engineered, exceptionally precise components and pioneering solutions to shape the future trajectory of medical technology.
- Semiconductors: Enhancing chip production and related essential equipment with indispensable core components.
- New Energy: Playing a crucial role in the sustainable evolution of innovative energy equipment.
- Automotive: Supplying vital components that spark innovation within the automotive industry, fostering the development of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving key sectors like medical, automation, semiconductor, and automotive industries with exceptional distinction.
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 cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units form the cornerstone of our precision-focused manufacturing. Empowering us to tackle the multifaceted and demanding machining requirements of diverse industries with exceptional precision and efficiency, our expansive capabilities ensure adherence to the highest quality standards. We offer bespoke customization, meticulously crafted to meet the unique needs of our distinguished clientele, elevating their expectations with every project.
- With an illustrious 20-year legacy, we harbor 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 empowers us to consistently deliver extraordinary products that not only meet but surpass 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
Exceeding Industry Norms: Precise Incoming Material Inspection
In our state-of-the-art facility, each raw material undergoes a rigorous and comprehensive evaluation process, setting new standards in quality assurance. This thorough procedure includes an in-depth analysis of chemical compositions and a meticulous examination of physical properties. We demand that suppliers provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the highest quality materials are chosen for our precision medical machining services. This exacting authentication protocol guarantees material integrity and purity, consistently upholding our superior standards of quality and precision.
In-Process Excellence: A Quest for Perfection in Quality Control
Throughout the intricate machining process, every component is meticulously inspected to ensure its dimensions and tolerances align with our precise specifications. Our rigorous inspection protocol is designed to intercept any potential defects, preventing non-conforming parts from advancing. This vigilant approach significantly minimizes the risk of substandard products, ensuring that exceptional quality is maintained diligently at each critical stage of production.
Preventive Excellence: Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process forms the cornerstone of our quality strategy, adeptly identifying and resolving potential production issues from the outset. This proactive approach ensures issues are addressed before advancing to mass production, securing a seamless flow of impeccable production. Our comprehensive FAI process is instrumental in minimizing quality risks, ensuring our products consistently meet the highest standards, reinforcing our commitment to excellence throughout the production lifecycle.
The Ultimate Quality Sentinel: Comprehensive Final Inspection
Prior to leaving our facility, each product undergoes an extensive and detailed final inspection. This comprehensive review includes dimensions, visual appearance, performance, and any specific customer requirements. Our thorough inspection is a testament to our unwavering dedication to quality, ensuring that every part dispatched meets our stringent standards, thereby delivering only the finest quality products 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)