Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment surpasses mere duty. It is an ardent passion for the fine artistry and intricate science of precision manufacturing-where innovation meets excellence. Our unparalleled expertise is a beacon in the world of high-end component fabrication, guiding the way to the highest levels of meticulous precision and unrivaled quality. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are tailored for a variety of industries, effectively addressing a wide array of applications, including:
- Medical and Biotech: Crafting precisely engineered high-precision components and pioneering solutions for advanced medical devices, maintaining the highest quality standards in the industry.
- Semiconductors: Driving chip production and related equipment by supplying crucial core components that stand at the heart of the industry's success.
- New Energy: Actively contributing to the robust and sustainable growth of innovative energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying essential components that power innovation within the automotive sector, supporting the transformation of smart and electric vehicles.
Main Products
- We excel in the creation of non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring precision without compromise and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned and advanced machines, each a testament to cutting-edge technology and innovation, 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. This combination guarantees 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
Exemplary Incoming Material Examination: A Benchmark for Excellence
Every raw material that crosses the threshold of our warehouse is subjected to a comprehensive and rigorous examination process, designed to ensure only top-tier substances are utilized in our precision-focused machining services. Our meticulous analyses encompass both chemical composition evaluation and an exhaustive inspection of physical properties. With an unwavering commitment to quality, we mandate that each supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous vetting ensures that the materials selected for our high-precision medical machining services embody the highest standards of integrity and purity, firmly aligning with our steadfast dedication to exceptional quality.
Intensive In-Process Quality Assurance: Elevating Precision at Every Step
In the heart of our intricate machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed stringent specifications. Our diligent, continuous inspection protocol is strategically crafted to identify and intercept potential defects at the earliest opportunity, effectively preventing non-conforming parts from advancing through production stages. This vigilant approach is instrumental in minimizing risks associated with substandard goods, ensuring unparalleled quality with each production phase, and perpetuating excellence throughout the entire process.
Strategic First Article Inspection (FAI): A Vital Foundation for Quality Mastery
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal in identifying and resolving potential production challenges at the outset, effectively preventing issues from escalating during mass production. The comprehensive and precise nature of our FAI process is indispensable for minimizing quality risks, ensuring our products consistently attain the highest standards of excellence. This unwavering dedication to surpassing quality benchmarks infuses every aspect of our production cycle, guaranteeing that our offerings rise to meet and exceed the most stringent criteria of quality.
Meticulous Comprehensive Final Inspection: Ensuring Excellence at Every Endpoint
Prior to dispatch, every product undergoes a meticulous and exhaustive final inspection that rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. This comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that each part leaving our facility adheres to our exacting standards. Our steadfast pledge to deliver only the highest quality products to our esteemed customers reinforces our reputation for excellence and unwavering 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 have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred 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 effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle 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)