Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is a passionate pursuit of excellence, driven by an unwavering dedication to the art and science of precision manufacturing. Our unparalleled expertise lights the way in the world of elite component creation, guiding the journey to exceptional precision and exactitude. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively meeting diverse needs and applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, consistently maintaining the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment by delivering essential core components, critical for driving the industry's advancement and success.
- New Energy: Dedicated to the dynamic and sustainable development of pioneering energy equipment, contributing to eco-friendly technological advancements.
- Automotive: Supplying essential components that drive innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- We specialize in crafting non-standard customized components, serving the medical, automation, semiconductor, and automotive industries, ensuring precision that is unmatched and quality that is superior.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary and cutting-edge 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 Examination
Every piece of raw material that graces our warehouse is subjected to an exhaustive and stringent examination regimen. Our meticulous analyses extend to evaluating both the chemical makeup and a comprehensive inspection of physical properties. We uphold an unwavering commitment to quality by mandating that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This diligent process ensures only the finest materials are handpicked for our high-precision medical machining services. Our rigorous authentication process is the hallmark of guaranteeing that these materials align with the highest integrity and purity standards, perfectly echoing our steadfast dedication to quality.
Comprehensive In-Process Quality Assurance
Within the realm of our intricate and precise machining operations, each component is scrutinized with meticulous care to ensure its dimensions and tolerances not only meet but surpass our exacting specifications. Our diligent and continuous inspection protocol is deftly crafted to catch potential defects early, thwarting non-conforming parts from advancing to subsequent stages. This vigilant strategy is central to mitigating the risk of substandard products, ensuring superior quality at every phase of production, and perpetuating excellence throughout the entire process.
Strategic Implementation of First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy designed to identify and address potential production challenges at an early stage. This proactive approach curtails issues from amplifying into mass production. The comprehensive and precise nature of our FAI process plays a pivotal role in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Quality Inspection
Before any product exits our facility, it is subjected to an intricate and thorough final inspection. This vigilant process rigorously evaluates dimensions, visual appeal, performance, and any customer-specific requirements. Our comprehensive inspection method epitomizes our relentless commitment to quality, ensuring that each part dispatched from our facility aligns with our exacting standards. We are resolute in delivering only the highest quality products to our esteemed customers, consistently upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, emerging from its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has positioned itself as a beacon of expertise in high-precision component machining. For over two remarkable decades, our relentless commitment to innovation has driven us to delve into deep technical research, elevating us to the forefront of precision engineering as trailblazers and innovators. We have cultivated an extensive reservoir of technical expertise that sets the industry standard, earning us a distinguished reputation and solidifying our status as an industry leader. Our prowess in precision medical machining services is unparalleled, consistently achieving extraordinarily tight tolerances and flawless surface finishes, thus making us the indisputable choice in the medical sector.
With four strategically positioned production bases in the bustling innovation hubs of Shenzhen and Guiyang, supported by a dedicated and skilled workforce of over 400 talented employees, Donghui has meticulously crafted a comprehensive and vertically integrated industry chain. This seamless chain weaves together cutting-edge research and development, superior production capabilities, and prompt delivery services, ensuring we not only meet but exceed the diverse demands of our clients with exceptional efficiency and unsurpassed quality. Our state-of-the-art facilities are finely tuned to tackle the most complex and demanding machining tasks, upholding our esteemed 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)