Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven not just by duty, but by an unwavering passion for the art and exact science of precision manufacturing. Our commitment is a testament to our love for crafting excellence. Our unparalleled expertise stands as a beacon in the sophisticated world of high-end component fabrication, shining a light on the journey toward impeccable precision and accuracy. We lead the charge in developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, adeptly meeting diverse application needs, including:
- Medical and Biotech: We deliver expertly crafted high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: We empower the semiconductor industry by providing essential core components vital to chip production and its machinery, ensuring industry success.
- New Energy: We actively engage in the robust and sustainable development of innovative energy equipment, promoting the advancement of eco-friendly technology.
- Automotive: We supply crucial components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, where we guarantee unmatched precision and outstanding quality.
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 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 guarantees not only exceptional quality but also 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 Examination of Incoming Materials
Each raw material that finds its way into our warehouse embarks on a journey through an exhaustive and stringent examination process. Our meticulous analyses delve deep, meticulously evaluating not just the chemical composition but also conducting a comprehensive inspection of the physical properties. We uphold an unwavering commitment to quality by requiring every supplier to furnish a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only the most exemplary materials are incorporated into our high-precision medical machining services. Our rigorous authentication process stands as a guardian of quality, ensuring these materials meet the pinnacle of standards for integrity and purity, perfectly mirroring our steadfast commitment to excellence.
Intensive In-Process Quality Assurance
Within the realm of our intricate and precise machining operations, each component undergoes meticulous scrutiny to ensure that its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is meticulously crafted to intercept potential defects early on, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, guaranteeing superior quality at each phase of production, and sustaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a strategic cornerstone, pivotal in identifying and resolving potential production challenges at an early stage. This proactive approach effectively curtails issues from escalating into mass production. The comprehensive and precise nature of our FAI process is instrumental in minimizing quality risks, ensuring our products consistently ascend to the zenith of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and exceed the highest benchmarks of quality.
Meticulous and Comprehensive Final Inspection
Before any product embarks on its journey from our facility, it undergoes a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and adheres to any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We remain steadfast in delivering only the highest quality products to our valued 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 risen to unparalleled heights in the realm of high-precision basic component machining. Driven by an unwavering commitment to innovation over the past two decades, we have immersed ourselves in technical research, firmly establishing our position as trailblazers in precision engineering. We have accumulated a rich reserve of technical knowledge, earning a stellar market reputation that distinguishes us as an industry leader. Our expertise in precision medical machining services remains unrivaled, consistently delivering extremely tight tolerances and flawless surface finishes, positioning us as the go-to choice in the medical sector.
With four strategically placed production bases in the thriving centers of Shenzhen and Guiyang, supported by an unwavering team of over 400 skilled professionals, Donghui has meticulously crafted a strong and vertically integrated industry chain. This chain seamlessly interconnects research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with remarkable efficiency and unmatched quality. Our cutting-edge facilities are primed to tackle the most intricate and demanding machining challenges, upholding our legacy of 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)