Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not simply committed to our work; we are fueled by a deep-seated passion and dedication to the art and science of precision manufacturing. Our work reflects an unwavering commitment to crafting the finest precision components available. Our unparalleled mastery in the field of high-end component creation shines as a beacon, lighting the way to achieving exacting precision and flawless craftsmanship. We are at the forefront of innovating and manufacturing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to meet the diverse needs of numerous industries, providing tailor-made answers to a wide range of applications, including:
- Medical and Biotech: Offering precisely engineered high-performance components and advanced solutions for cutting-edge medical devices, maintaining the highest quality standards in the industry.
- Semiconductors: Bolstering chip production and its associated apparatus by providing essential core components, which are integral to elevating the industry's capabilities.
- New Energy: Actively participating in the dynamic and eco-conscious development of advanced energy equipment, championing environmentally-friendly technological innovations.
- Automotive: Supplying critical components that drive the innovation within the automotive industry, facilitating the transformation and advancement of smart and electric vehicles.
Main Products
- We excel in creating bespoke non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and superior quality in every piece.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly boast an unparalleled collection of over 300 world-renowned state-of-the-art machines, empowering us to expertly manage an all-encompassing range of equipment categories. This capability enables us to adeptly meet the intricate machining requirements of various industries with unmatched precision and efficiency.
- With an illustrious history spanning two decades, our company harnesses extensive production experience, coupled with substantial technical and process expertise. We assure remarkable quality and innovative advancements, distinguishing us as trailblazers in the precision engineering sector.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material entering the sanctum of our warehouse is subjected to a comprehensive and rigorous examination protocol. Our detailed evaluations delve deep into the chemical composition and meticulously scrutinize the physical properties. Our unwavering dedication to quality demands that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This stringent requirement ensures that only the most exceptional materials are handpicked for our high-precision medical machining services. Our thorough authentication process guarantees that these materials embody the pinnacle of integrity and purity, perfectly mirroring our steadfast quality commitment.
Intensive In-Process Quality Assurance
Amidst our intricate and precise machining operations, each component is scrutinized with meticulous attention to detail to ensure its dimensions and tolerances meet and surpass our rigorous specifications. Our diligent, continuous inspection protocol is deftly crafted to intercept potential defects at the earliest opportunity, thus preventing non-conforming parts from advancing to subsequent stages. This vigilant strategy is essential in mitigating the risk of substandard products, ensuring superior quality at every phase of production, and maintaining an unwavering standard of excellence across the entire process.
Strategic First Article Inspection (FAI)
Our foundational First Article Inspection (FAI) process is a key strategic element that identifies and resolves potential production challenges at an early phase. This forward-thinking approach prevents issues from escalating into mass production complications. The comprehensive precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering commitment to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and surpass the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a hallmark of our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We remain dedicated to delivering only the most superior quality products to our esteemed customers, upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We possess an extraordinary depth of technical expertise, which has earned us a stellar market reputation, setting us apart as true leaders in the precision engineering industry. Our unparalleled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable surface finishes, making us the go-to choice for the medical sector.
With four strategically positioned production bases in the dynamic hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring we consistently meet and exceed the diverse needs of our valued customers with remarkable efficiency and exceptional quality. Our cutting-edge facilities are engineered to handle the most intricate and demanding machining tasks, reinforcing our reputation for excellence and trailblazing 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)