Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication goes beyond a mere obligation; it is fueled by an ardent passion for the exquisite artistry and intricate science involved in the realm of precision manufacturing. Our unrivaled expertise stands as a beacon in the sophisticated world of high-end component fabrication, lighting the way toward exceptional precision and meticulous craftsmanship. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our avant-garde solutions cater to a diverse array of industries, effectively addressing a wide range of applications, including:
- Medical and Biotech: Delivering exquisitely engineered, high-precision components and innovative solutions for cutting-edge medical devices, consistently upholding the zenith of quality standards.
- Semiconductors: Enabling chip production and its associated equipment by providing essential core components that are vital to the industry's monumental success.
- New Energy: Actively contributing to the robust and sustainable advancement of pioneering energy equipment, championing eco-friendly technological innovations.
- Automotive: Supplying crucial components that ignite innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in creating non-standard, customized components that are extensively utilized across the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior 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 exceptional capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency, ensuring we meet and exceed industry expectations.
- 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. This commitment sets us apart as pioneers in the realm of precision engineering, driving us towards excellence and leadership.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Premier Incoming Material Examination
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., each raw material that graces our warehouse undergoes an exhaustive, meticulous examination process. Our rigorous analyses delve deep into evaluating chemical composition and scrutinizing physical properties. In our unwavering commitment to exceptional quality, we mandate every supplier to provide a Certificate of Origin alongside a stamped Declaration of Conformity, ensuring only the finest materials are chosen for our high-precision medical machining services. This rigorous authentication process guarantees materials that meet the highest standards of integrity and purity, aligning seamlessly with our steadfast dedication to superior quality.
Rigorous In-Process Quality Assurance
During our intricate and precise machining operations, every component is meticulously examined to ensure its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent, continuous inspection protocol is strategically crafted to intercept potential defects early, ensuring non-conforming parts do not advance to subsequent stages. This vigilant approach is crucial in minimizing risks of substandard goods, securing superior quality at every phase, and maintaining excellence throughout the entire production process.
Strategic First Article Inspection (FAI) Process
Our First Article Inspection (FAI) process stands as a foundational strategy, crucial for identifying and resolving potential production challenges at early stages. This proactive approach ensures issues are prevented from escalating into mass production. The comprehensive and precise nature of our FAI process plays a vital role in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This devotion to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs our facility, it undergoes a meticulous, thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our esteemed customers, 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 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)