Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we infuse our commitment with a vibrant enthusiasm, transcending mere duty to embrace the captivating art and precise science of advanced precision manufacturing. Our unparalleled proficiency shines brightly in the world of high-precision component fabrication, guiding a path toward flawless accuracy and excellence. Leading the charge in the creation and production of revolutionary intelligent automation equipment, our state-of-the-art solutions perfectly serve a wide array of industries. We effectively address diverse applications, including:
- Medical and Biotech: Crafting meticulously designed high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Supporting the semiconductor industry with essential core components, empowering chip production and its critical equipment with reliability and precision.
- New Energy: Contributing to the dynamic and sustainable growth of innovative energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Supplying key components that inspire innovation within the automotive realm, fostering the advancement of smart and electric vehicles.
Main Products
- We excel in the production of non-standard customized components, widely catering to the medical, automation, semiconductor, and automotive sectors, ensuring precision and unmatched quality.
Why choose us
Core Advantages
- A Fleet of Excellence: A Mastery of Manufacturing Our operations proudly showcase an extraordinary assortment of over 300 world-class machines, epitomizing cutting-edge technology and superior precision. These renowned machines signify our commitment to excellence and innovation. machines, each representing the pinnacle of technological advancement, 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 customer satisfaction and competitive advantage.
- 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. These attributes set us apart as pioneers in the realm of precision engineering, making us the preferred choice for clients worldwide.
State-of-the-Art Production Equipment: The Backbone of Precision
High-Precision Inspection Equipment: Ensuring Uncompromising Quality
Quality Ensurance
Unmatched Incoming Material Verification
Every raw material that graces our warehouse is subjected to an exhaustive and demanding examination process. Our rigorous evaluations encompass detailed chemical composition assessments and thorough inspections of the material's physical properties. Our unwavering dedication to quality is exemplified by our requirement for every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that only the highest-quality materials are selected for our precision-driven medical machining services. Our rigorous verification process stands as a steadfast guardian, ensuring these materials uphold the pinnacle of integrity and purity, perfectly embodying our commitment to unrivaled quality.
Robust In-Process Quality Control
In the heart of our intricate machining operations, every component is subjected to meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our thorough and continuous inspection protocol is strategically crafted to identify and address potential defects at the earliest possible stage, effectively preventing non-conforming parts from advancing to subsequent production phases. This vigilant approach is crucial in mitigating the risk of substandard products, maintaining superior quality at every production phase, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategies
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal in pinpointing and resolving production challenges before they escalate into large-scale issues. This proactive methodology is instrumental in preventing complications from reaching mass production. The detailed and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the highest echelons of standards. Our unwavering dedication to excellence infuses every facet of the production cycle, ensuring we consistently meet and exceed the loftiest quality benchmarks.
Thorough and Detailed Final Inspection
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process meticulously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection process is a testament to our relentless dedication to quality, ensuring that every component dispatched from our facility meets our stringent standards. We are unwavering in our commitment to delivering only the highest-quality products to our esteemed customers, continually upholding our 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 spanning over two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed an unparalleled wealth of technical expertise, earning a stellar market reputation that distinctly sets us apart as industry leaders. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the quintessential choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, continually reinforcing 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)