Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is a harmonious blend of intense passion and unwavering dedication. This fervor is not only an obligation but an art form, celebrating the intricate craft and exacting science found within precision manufacturing. Our unparalleled expertise shines as a beacon in the sophisticated landscape of high-end component fabrication, guiding with unwavering precision and illuminating the path to excellence. We are at the forefront of innovation, leading the charge in the development and crafting of revolutionary intelligent automation equipment. Our avant-garde solutions expertly navigate the needs of a myriad of industries, skillfully addressing a diverse array of applications, including:
- Medical and Biotech: Delivering intricately designed, high-precision components and breakthrough solutions that are integral to cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Catalyzing chip production and its related equipment with essential core components that are vital to the thriving success of the industry.
- New Energy: Actively advancing eco-friendly innovations and sustainable development of new energy equipment, pushing the boundaries of technological progress.
- Automotive: Supplying critical components that inspire groundbreaking innovation within the automotive realm, supporting the transformation towards smart and electric vehicles.
Main Products
- We are specialists in crafting non-standard, customized components, extensively serving the medical, automation, semiconductor, and automotive industries. Our products guarantee unmatched precision and superior quality, ensuring excellence in every application.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 state-of-the-art and renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency, truly setting new benchmarks in engineering excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, elevating us as pioneers and leaders in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that enters our warehouse embarks on a rigorous journey of assessment and verification. We leave no stone unturned as our exhaustive analyses meticulously probe the chemical composition and delve deep into inspecting the physical attributes. Our unwavering allegiance to quality is fortified by compelling every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. These meticulous measures ensure that only the crème de la crème of materials are selected for our high-precision medical machining services. Through our rigorous authentication process, we can assure that these materials uphold the highest echelons of integrity and purity, seamlessly aligning with our unwavering commitment to unparalleled quality.
Intensive In-Process Quality Assurance
In the intricate tapestry of our precise machining operations, every component is a subject of meticulous scrutiny. Our goal is not only to meet but to consistently surpass our exacting standards for dimensions and tolerances. Our diligent and unrelenting inspection protocol is strategically crafted to detect potential discrepancies at the earliest stages, thus thwarting the progression of non-conforming parts into further production phases. This vigilant approach is instrumental in reducing the risk of substandard goods, securing superior quality at every juncture of production, and ensuring excellence prevails consistently throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is not merely a step, but a cornerstone of our strategic approach, pivotal for preemptively identifying and resolving production challenges before they escalate. This proactive strategy is our shield against potential production hitches, preventing them from snowballing into full-scale setbacks. The sweeping precision of our FAI process is indispensable in curbing quality risks, ensuring our products perpetually attain the zenith of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing our deliverables not only meet but transcend the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection
Our meticulous and thorough final inspection is the last bastion of quality before any product leaves our facility. This comprehensive process rigorously evaluates every dimension, visual attribute, performance metric, and any customer-specific stipulations. Our final inspection process is a beacon of our relentless commitment to quality, ensuring that each part dispatched from our premises meets our rigorous standards. We stand unwavering in our mission to deliver only the highest quality products to our esteemed customers, solidifying our esteemed reputation for unparalleled excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Since its remarkable inception in 2009, tracing its foundational roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of unparalleled expertise in high-precision basic component machining. With an unyielding commitment to innovation and excellence over the past two decades, we have immersed ourselves in cutting-edge technical research, establishing a vanguard presence in precision engineering. We have cultivated a vast reservoir of technical prowess, earning a distinguished market reputation that delineates us as a venerated industry leader. Our unparalleled capabilities in precision medical machining services consistently achieve extremely tight tolerances and flawless surface finishes, positioning us as the premier preference in the medical sector.
With four strategically positioned production bases in the dynamic centers of Shenzhen and Guiyang, powered by a dynamic workforce of over 400 highly skilled professionals, Donghui has ingeniously crafted a comprehensive and vertically integrated industry chain. This synergy seamlessly interlaces research and development, production, and delivery, ensuring we exceed the diverse expectations of our clientele with exceptional efficiency and unmatched quality. Our cutting-edge facilities are meticulously designed to handle the most complex and demanding machining tasks, enhancing our reputation for consummate 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)