Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just fulfill a commitment; we embrace a vibrant passion for the exquisite blend of art and science in precision manufacturing, all driven by an unwavering dedication to achieving nothing short of excellence. Our unrivaled expertise radiates as a guiding light in the sphere of high-end component fabrication, charting the course towards the attainment of meticulous accuracy and absolute perfection. We stand at the cutting edge of innovation, developing and producing groundbreaking intelligent automation equipment. Our advanced solutions seamlessly cater to a wide spectrum of industries, skillfully addressing various applications, including:
- Medical and Biotech Sector: Providing intricately engineered high-precision components and pioneering solutions for the forefront of medical devices, steadfastly upholding the pinnacle of quality and excellence.
- Semiconductors Industry: Fueling the semiconductor industry and its auxiliary equipment with indispensable core components that are vital to the robust success of this sector.
- New Energy Innovations: Actively contributing to the progressive and sustainable development of cutting-edge energy equipment, championing the evolution of eco-friendly technologies.
- Automotive Industry: Providing essential components that propel innovation within the automotive sector, fostering the growth and development of intelligent and electric vehicles.
Core Products
- We specialize in the crafting of bespoke non-standard components, serving extensively within the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and exceptional quality in every product.
Why choose us
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our extensive and diverse machine fleet positions us at the forefront of innovation, ensuring that each project is completed with the utmost dedication to quality and precision.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering. Our twentieth-anniversary milestone is a testament to our enduring commitment to excellence and transformative impact on the precision engineering landscape.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Peerless Incoming Material Assessment
Every single raw material that enters our state-of-the-art warehouse undergoes an exhaustive, meticulous examination process, unmatched in its rigor and precision. Our in-depth analyses meticulously cover each aspect, from a detailed evaluation of chemical compositions to a comprehensive inspection of their physical properties. Firm in our commitment to supreme quality, we require each supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This process ensures that only the highest-grade materials are selected for our high-precision medical machining services. Our stringent authentication guarantees materials of the highest integrity and purity, echoing our unwavering dedication to excellence.
Comprehensive In-Process Quality Assurance
Throughout our meticulous machining operations, each component is scrutinized with unmatched precision to ensure that dimensions and tolerances not only meet but consistently surpass our rigorous specifications. Our diligent inspection protocol is strategically designed to detect potential defects at the earliest stages, effectively preventing non-conforming parts from advancing. This vigilant approach is crucial in minimizing the risk of substandard outputs, ensuring unparalleled quality at every phase, and upholding excellence throughout the entire production journey.
Strategic First Article Inspection (FAI) Process
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal in identifying and resolving potential production challenges from the outset. This proactive methodology ensures that any issues are thoroughly addressed well before they reach the stage of mass production. The comprehensive and precise nature of our FAI process is vital in mitigating quality risks, consistently elevating our products to the highest standards. Our unwavering dedication to excellence permeates every facet of the production cycle, ensuring we surpass the most ambitious quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and thorough final inspection. This stringent process evaluates dimensions, visual appearance, and performance, while also adhering to any specific customer requirements. Our exhaustive inspection regimen showcases our relentless pursuit of quality, ensuring every part that exits our facility aligns with our exacting standards. We are dedicated to delivering only the finest products to our esteemed customers, continuously reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its dynamic inception in 2009, with its foundational roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a shining beacon of expertise in the realm of high-precision basic component machining. With an unwavering and steadfast commitment to groundbreaking innovation over the past two decades, we have delved deeply into technical research, establishing ourselves as true pioneers in the field of precision engineering. At Donghui, we have amassed an unparalleled wealth of technical expertise, earning a stellar and enviable market reputation that distinctly sets us apart as a true leader in the industry. Our unmatched capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable, flawless surface finishes, making us the preferred and trusted choice in the demanding medical sector.
With an impressive array of resources, we boast four strategically located production bases, nestled within the bustling and vibrant hubs of Shenzhen and Guiyang, powered by our dedicated and skilled workforce of over 400 highly trained employees. Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain expertly weaves together research and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs and expectations of our valued customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are impeccably equipped to handle the most intricate and demanding machining tasks, steadfastly maintaining our reputation for excellence and groundbreaking innovation.
Captivating 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)