Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven not just by duty, but by a profound passion for the art and science of precision manufacturing-a passion that fuels our commitment to excellence in every endeavor. Our unparalleled expertise is the beacon in the sophisticated world of high-end component fabrication, leading the way to unwavering precision and quality that sets industry standards. We stand at the forefront of innovation, crafting revolutionary intelligent automation equipment designed to meet the needs of a wide array of industries. Our advanced solutions adeptly satisfy an array of applications, proudly including:
- Medical and Biotech: We deliver exquisitely engineered high-precision components and pioneering solutions for cutting-edge medical devices, consistently maintaining the highest standards of quality and reliability.
- Semiconductors: By providing critical core components, we empower the production processes of chips and related equipment, serving as a cornerstone for the industry's triumphs.
- New Energy: We are committed to the dynamic and sustainable progress of innovative energy equipment, contributing significantly to eco-friendly technological advancements.
- Automotive: Our essential components drive innovation in the automotive industry, supporting the transformative journey towards smart and electric vehicles.
Main Products
- We excel in the creation of bespoke, non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors. Our focus is on delivering unmatched precision and superior quality in every piece.
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. Our pioneering spirit sets us apart in the realm of precision engineering, defining us as the leaders who continuously push the boundaries of excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination Procedures
Upon arrival, every raw material destined for our warehouse is rigorously scrutinized through an all-encompassing, stringent examination process. This meticulous assessment delves into the chemical composition and conducts an exhaustive inspection of the physical properties. Our unwavering commitment to quality is further fortified as we mandate that every supplier furnishes a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that only materials of the highest calibre and precision are chosen for our high-precision medical machining services. Our rigorous authentication process is a testament to our stringent quality assurance, ensuring these materials consistently meet the highest standards of integrity and purity, perfectly echoing our steadfast dedication to unmatched quality.
Intensive In-Process Quality Assurance Protocols
Within our state-of-the-art and intricate machining operations, each component is meticulously scrutinized to ensure that its dimensions and tolerances not only meet but surpass our demanding specifications. Our vigilant and continuous inspection protocol is strategically engineered to detect and address potential defects early, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant and proactive approach is essential in minimizing the risk of substandard goods, ensuring superior quality at every production phase, and upholding excellence throughout the entire manufacturing process.
Strategic First Article Inspection (FAI) Initiatives
Our First Article Inspection (FAI) process stands as a fundamental strategy, crucial for the early identification and resolution of potential production challenges. This forward-thinking approach ensures that issues are addressed before escalating into mass production, thereby safeguarding quality. The comprehensive, precise nature of our FAI process is vital in minimizing potential quality risks, ensuring our products consistently achieve and maintain the highest standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the most rigorous quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to an exhaustive and meticulous final inspection process. This rigorous evaluation encompasses dimensions, aesthetics, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless pursuit of quality, ensuring every part dispatched from our facility meets our exacting standards. We are unwavering in our commitment to delivering only the highest quality products to our esteemed customers, solidifying our reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its foundational roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a paragon of high-precision component machining. With a steadfast commitment to innovation spanning over two decades, we have embarked on a journey of profound technical research, firmly establishing ourselves as pioneers in the realm of precision engineering. Harnessing our extensive technical expertise, we have garnered a stellar market reputation that distinguishes us as a trailblazer in the industry. Our unmatched capabilities in precision medical machining services consistently achieve extraordinarily tight tolerances and impeccable surface finishes, solidifying our position as the preferred choice within the medical sector.
Boasting four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 skilled professionals, Donghui has constructed a robust and seamlessly integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our customers with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are poised to tackle the most intricate and challenging machining tasks, 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)