Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment transcends mere obligation; we are driven by a passionate fervor for the exquisite artistry and meticulous science that forms the backbone of precision manufacturing. Our unparalleled expertise serves as a beacon in the realm of high-end component fabrication, lighting the path to meticulous precision with unwavering dedication. We are at the forefront of developing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions cater to a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and pioneering solutions for state-of-the-art medical devices, consistently upholding the highest quality standards.
- Semiconductors: Empowering chip production and its associated equipment by providing indispensable core components that are crucial to the industry's sustained success.
- New Energy: Actively engaging in the dynamic and sustainable progression of innovative energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Supplying essential components that ignite innovation within the automotive sector, aiding the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and superior 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, guaranteeing 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
Rigorous Incoming Material Inspection
Every piece of raw material that enters our warehouse undergoes a comprehensive and rigorous inspection process. We conduct meticulous assessments that delve deeply into the chemical composition and thoroughly evaluate the physical properties. Our unwavering dedication to quality demands that every supplier furnish a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous scrutiny ensures that only the finest materials are selected for our precision medical machining services. Our rigorous verification process assures that these materials meet the pinnacle of standards in integrity and purity, perfectly aligning with our steadfast commitment to excellence.
In-Depth In-Process Quality Assurance
In our intricate and precise machining operations, every component is scrutinized with meticulous attention to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocol is crafted to detect potential defects early, thus preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is instrumental in reducing the risk of substandard goods, ensuring superior quality at every production phase, and sustaining excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategy vital for early identification and resolution of potential production challenges. This proactive approach effectively prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process plays a critical role in minimizing quality risks, ensuring our products consistently achieve the highest standards. This commitment to excellence is woven into every facet of the production cycle, guaranteeing we meet and exceed the most stringent quality benchmarks.
Thorough and Detailed Final Inspection
Before any product departs from our facility, it is subjected to a thorough and meticulous final inspection. This rigorous process assesses dimensions, visual aesthetics, performance, and any specific customer requirements. Our comprehensive inspection process stands as a testament to our unwavering dedication to quality, ensuring that each part dispatched from our facility meets our rigorous standards. We are committed to delivering only the finest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its original roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as an emblem of expertise and excellence in the realm of high-precision basic component machining. With an unwavering dedication to groundbreaking innovation over the past two decades, we have delved deep into pioneering technical research, establishing ourselves as trailblazers in the precision engineering sector. We have accumulated a vast reservoir of technical expertise, earning a stellar market reputation that distinguishes us as a vanguard in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving exceptionally tight tolerances and immaculate surface finishes. This commitment to precision and quality makes us the first choice among discerning clients in the medical sector.
With four strategically positioned production bases nestled in the vibrant economic centers of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has seamlessly crafted a robust and vertically integrated industry chain. This chain effortlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed our customers' diverse needs with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously equipped to handle the most intricate and demanding machining tasks, consistently upholding our reputation for excellence and pioneering 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)