Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty; it is a passionate pursuit of the art and science of precision manufacturing. Our unparalleled expertise shines brightly in the world of high-end component fabrication, lighting the way to unmatched precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions span a wide array of industries, effectively addressing varied applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and breakthrough solutions for cutting-edge medical devices, ensuring the highest quality standards are met.
- Semiconductors: Supporting chip production and its associated machinery with essential core components that are vital to the industry's advancement and triumph.
- New Energy: Driving the dynamic and sustainable progress of advanced energy equipment, promoting eco-friendly technological innovation.
- Automotive: Supplying critical components that drive innovation in the automotive industry, assisting the development of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, delivering unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machinery, 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, ensuring that each product is crafted to meet the highest standards of excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our dedication to precision and technological advancement solidifies our reputation as industry leaders.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Verification
Every raw material that graces our warehouse is subjected to an intense and comprehensive examination process. Our thorough analyses meticulously evaluate both the chemical composition and the physical attributes of the materials. We maintain an unyielding dedication to quality by mandating that each supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This stringent protocol ensures that only the highest caliber materials are chosen for our precision medical machining services. Our rigorous authentication process guarantees that these materials embody the pinnacle of quality, perfectly aligning with our firm commitment to excellence.
Rigorous In-Process Quality Assurance
Throughout our sophisticated and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection protocol is ingeniously designed to detect potential defects at the earliest possible stage, thereby preventing any substandard parts from advancing through the production line. This vigilant approach is crucial in minimizing the risk of inferior goods, ensuring top-tier quality at every production phase, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process stands as a cornerstone strategy, essential for identifying and resolving potential production challenges early. This proactive stance prevents issues from escalating to mass production levels. The exhaustive and precise nature of our FAI process is vital in reducing quality risks and ensuring our products consistently reach the zenith of standards. This unwavering commitment to excellence permeates every facet of the production cycle, making certain that we not only meet but exceed the highest quality benchmarks.
Thorough and Detailed Final Inspection
Before any product departs from our facility, it is subjected to a meticulous and exhaustive final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any specific customer requirements. Our all-encompassing inspection process stands as a testament to our relentless pursuit of quality, ensuring that every part leaving our facility adheres to our exacting standards. We are resolute in providing only the highest quality products to our valued 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 risen triumphantly as a bastion of unparalleled expertise in high-precision component machining. With an unwavering commitment to innovation over the past two decades, we have delved deeply into technical research, cementing our status as pioneers in the realm of precision engineering. We have amassed a treasure trove of technical expertise, earning a stellar market reputation that distinguishes us as an undisputed leader in the industry. Our capabilities in precision medical machining services are unrivaled, consistently achieving incredibly tight tolerances and flawless surface finishes, making us the unparalleled choice in the medical sector.
With four strategically located production bases, nestled in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly skilled employees, Donghui has crafted an impressive and vertically integrated industry chain. This seamless chain interlaces research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to undertake the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking 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)