Experience the pinnacle of precision and customization with our OEM services, tailored specifically for the medical field. Our cutting-edge CNC machining, turning, and lathing processes are designed to meet the highest standards for non-standard hardware accessories, delivering exceptional tolerance and quality. Ensure your medical applications are supported by parts crafted with meticulous attention to detail.
Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we breathe life into the art and science of precision manufacturing with a commitment that's nothing short of a passionate pursuit. Our driving force is an unyielding love for crafting perfection in every minute detail of our components. Our exceptional mastery in high-end component fabrication shines brightly, leading the industry in setting the benchmark for unrivaled precision and excellence. We stand at the cutting edge of revolutionary intelligent automation equipment development and production. Our state-of-the-art solutions cater to a vast array of industries, addressing diverse application requirements with unparalleled precision and effectiveness, including:
- Medical and Biotech: Advancing Healthcare with Unmatched Precision: We specialize in delivering meticulously engineered high-precision components and innovative solutions for next-generation medical devices, continuously maintaining the highest standards of quality synonymous with unparalleled excellence.
- Semiconductors: Pioneering Technological Evolution: We empower the semiconductor industry by providing indispensable core components critical for chip production and related equipment, ensuring seamless success and fostering continuous innovation.
- New Energy: Leading the Charge in Sustainable Innovation: We are actively engaged in the vibrant and sustainable advancement of groundbreaking energy solutions, driving eco-friendly technological innovations to new heights.
- Automotive: Driving the Next Generation of Mobility: We supply crucial components that fuel innovation in the automotive industry, playing a pivotal role in the evolution of intelligent and electric vehicles.
Main Products: Unmatched Excellence in Customization
- Our expertise lies in crafting bespoke non-standard components, extensively servicing the medical, automation, semiconductor, and automotive sectors with precision and a level of quality that is simply unrivaled.
Why choose us
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Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Evaluation of Incoming Materials
Every raw material that enters our facility is meticulously vetted through a comprehensive and rigorous examination process, ensuring superior quality at all times. Our in-depth evaluations cover both the chemical composition and a thorough inspection of physical properties. We maintain our unwavering dedication to excellence by requiring every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This process guarantees that only the finest materials-meeting the utmost standards of integrity and purity-are selected for our high-precision medical machining services. Our rigorous authentication process seamlessly aligns with our steadfast commitment to delivering outstanding quality.
Meticulous Assurance of Quality During the Process
Within our complex machining operations, we ensure that every component undergoes meticulous scrutiny to guarantee that dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection protocol is expertly designed to detect potential defects early, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is essential in minimizing the risk of substandard goods, ensuring superior quality at every stage of production, and upholding excellence throughout the entire process.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a foundational and strategic measure, essential for the early detection and resolution of potential production challenges. This proactive approach effectively prevents issues from escalating into mass production problems. The comprehensive and precise nature of our FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards. Our unwavering commitment to excellence permeates every aspect of the production cycle, consistently meeting and exceeding the highest quality benchmarks.
Meticulous and Exhaustive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and exhaustive final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection process stands as a testament to our unyielding dedication to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, thus upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009 with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a paragon of high-precision component machining. For over two vibrant decades, our unwavering pursuit of groundbreaking innovation has catapulted us to the forefront of technical research, distinguishing us as pioneers in the enchanting world of precision engineering. We have achieved an extraordinary level of technical expertise, earning us a revered market position that sets us apart as industry vanguards. Our unparalleled skill in precision medical machining services consistently achieves astonishingly tight tolerances and impeccable surface finishes, solidifying our status as the partner of choice in the medical sector.
With four strategically positioned production bases in the bustling hubs of Shenzhen and Guiyang, supported by a passionate team of over 400 exceptionally skilled professionals, Donghui has crafted a comprehensive and vertically integrated industry chain with meticulous precision. This seamless integration of research, development, production, and delivery empowers us to not only meet but exceed the diverse needs of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are designed to handle the most intricate and demanding machining tasks, consistently upholding our esteemed reputation for excellence and pioneering 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)
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