Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to unparalleled excellence is more than a responsibility. It embodies a passionate dedication to achieving brilliance in the intricate art and sophisticated science of manufacturing mastery. Our extraordinary expertise paves the way for unparalleled precision, shining as a guiding light in the exclusive realm of elite component manufacturing. Champions of innovation, we set the gold standard in crafting and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions flawlessly integrate across a broad spectrum of industries, addressing diverse needs with precision and versatility across numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions tailored for the future of medical devices.
- Semiconductors: Elevating chip production and essential equipment with indispensable, core components designed to enhance efficiency and performance.
- New Energy: Playing a crucial role in the innovative and sustainable evolution of cutting-edge energy equipment.
- Automotive: Supplying essential components that drive innovation within the automotive sector, propelling the advancement of smart and electric vehicles.
Main Products
- Expertly crafted, non-standard customized components, serving vital sectors such as 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 are the cornerstone of our precision-focused manufacturing, enabling us to masterfully tackle the multifaceted and demanding machining requirements of an array of industries with exceptional precision and efficiency. Our extensive capabilities guarantee adherence to the pinnacle of quality standards and offer bespoke customization that is meticulously crafted to meet the unique needs of our distinguished clientele.
- With an illustrious 20-year legacy, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. harbors 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
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks
Every single piece of raw material entering our state-of-the-art warehouse embarks on an exhaustive journey of scrutiny, setting a gold standard in quality assurance. This meticulous process involves a deep dive into the chemical composition and a comprehensive examination of physical attributes. Our unwavering commitment to excellence mandates that each supplier delivers a Certificate of Origin, coupled with a Declaration of Conformity. This ensures the selection of only the finest materials for our high-precision medical machining services. Such rigorous authentication is a testament to the integrity and purity of the materials, consistently upholding our elevated standards of quality and precision.
Rigorous In-Process Quality Control: Pursuing Flawlessness
Throughout the intricate machining process, each component faces meticulous scrutiny to affirm that its dimensions and tolerances perfectly align with our exacting specifications. This diligent and continual inspection protocol intercepts potential defects proactively, ensuring no non-conforming parts proceed further. Our vigilant approach significantly reduces the risk of producing substandard goods, ensuring superior quality is maintained at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) forms the cornerstone of our strategy, adeptly identifying and resolving potential production challenges at the outset. This proactive approach prevents issues from escalating into mass production. Our comprehensive and precise FAI process is vital in minimizing quality risks, guaranteeing that our products consistently meet 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 departs from our facility, it undergoes a detailed and meticulous final inspection process. This rigorous evaluation covers dimensions, visual appearance, and performance, alongside any customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, upholding our promise that every part dispatched meets our exacting 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 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. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. We have amassed an unrivaled wealth of technical expertise, positioning ourselves as market leaders with a stellar reputation for excellence. Our unmatched prowess in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes. This places us as the preferred choice in the medical sector, where our precision and reliability are trusted and valued.
With four strategically positioned production bases, in the bustling centers 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 exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding 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)