Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a duty but a heartfelt passion. We are deeply inspired by the exquisite art and rigorous science of precision manufacturing, striving for excellence in every detail. Our unparalleled expertise stands as a beacon in the world of high-end component fabrication, guiding our journey towards unmatched precision and perfection. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions span multiple industries, effectively meeting diverse needs across applications such as:
- Medical and Biotech: We deliver meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, consistently maintaining the highest quality standards.
- Semiconductors: We empower chip production and its related equipment by providing essential core components, critical for the industry's progress and success.
- New Energy: We are actively engaged in the vigorous and sustainable development of innovative energy equipment, driving eco-friendly technological advancements.
- Automotive: We offer vital components that are essential for innovation within the automotive sector, contributing to the evolution of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring precision and superior quality without compromise.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 specialized and cutting-edge machines, a testament to our unwavering commitment to technological leadership. 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, ensuring that every component is crafted to perfection.
- 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 true pioneers in the dynamic realm of precision engineering, where excellence is our standard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Evaluation
Every piece of raw material entering our state-of-the-art warehouse is subjected to a comprehensive and rigorous examination. Our diligent analyses cover everything from chemical composition to a detailed inspection of physical properties. We unwaveringly uphold our commitment to supreme quality by demanding a Certificate of Origin and a stamped Declaration of Conformity from every supplier. This meticulous process ensures that only the highest grade materials are chosen for our high-precision medical machining services. Our rigorous selection process guarantees these materials meet the utmost standards of integrity and purity, seamlessly aligning with our steadfast dedication to exceptional quality.
Rigorous In-Process Quality Control
Amidst our intricate and precise machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocols are intentionally designed to identify potential defects at an early stage, preventing non-conforming parts from advancing to subsequent phases. This vigilant strategy is crucial in reducing the risk of inferior goods, ensuring superior quality at every production stage, and consistently maintaining excellence throughout the entire process.
Strategically Planned First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategy vital for early identification and resolution of production challenges. This proactive approach is key to preventing issues from escalating into larger scale production. The comprehensive and precise nature of our FAI process minimizes quality risks, ensuring our products consistently achieve the pinnacle of standards. This unwavering dedication to excellence is evident in every facet of the production cycle, guaranteeing we meet and surpass the highest quality benchmarks.
Thorough and Exhaustive Final Inspection
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless pursuit of quality excellence, ensuring every part shipped from our facility meets our exacting standards. We are committed to delivering only the highest quality products to our esteemed customers, preserving 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 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)