Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate the concept of precision manufacturing to an art form, going beyond mere expectations. Our unwavering commitment is a testament to our dedication and excellence, setting revolutionary standards and opening new frontiers in the industry. Our unparalleled expertise casts a brilliant light on the realm of high-end component manufacturing. We are the pioneers of flawless precision, continually redefining industry standards with our exceptional excellence. As pioneers in innovation, we lead in the design and fabrication of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a diverse array of industries, fulfilling a wide range of applications and unique requirements, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and innovative solutions for medical devices at the forefront of technology, rigorously ensuring the highest quality standards are met.
- Semiconductors: Transforming the landscape of chip manufacturing and its machinery by providing essential core components crucial to the groundbreaking progress of the semiconductor industry.
- New Energy: Actively fostering the vibrant and sustainable growth of next-generation energy solutions, championing eco-friendly technological advancements.
- Automotive: Supplying indispensable components that propel innovation in the automotive sector, supporting the evolution of intelligent and electric vehicles with unmatched precision and unwavering reliability.
Main Products
- We excel in the art of crafting bespoke, non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and superior quality at every stage.
Why choose us
Core Advantages
- A Fleet of Excellence: Experience the epitome of engineering prowess with our unparalleled fleet. Our operations proudly showcase an extraordinary assortment of over 300 machines. This impressive array exemplifies our engineering mastery and capability. Renowned: Our reputation echoes through the industry, celebrated for outstanding craftsmanship and reliability. Machines: Our state-of-the-art machinery defines precision and sets the stage for superior performance., enabling us to masterfully address a comprehensive spectrum of equipment categories. With this elite arsenal, we skillfully fulfill intricate machining needs of diverse industries, achieving new heights in accuracy and efficiency. Our extensive fleet allows us to tailor impeccable solutions that exceed industry standards and elevate operational excellence.
- With a rich history spanning two decades, we harness our vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This positions us as true pioneers in precision engineering, consistently delivering top-tier solutions. We are dedicated to excellence and continuous improvement, ensuring we not only meet but surpass the sophisticated demands of our discerning clientele.
State-of-the-Art Production Equipment: The pinnacle of technological advancement, our equipment ensures precision in every detail.
High-Precision Inspection Equipment: Excellence in quality assurance is guaranteed with our cutting-edge inspection technologies.
Quality Ensurance
Exemplary Incoming Material Examination: A Testament to Unrivaled Purity and Integrity
Every raw material entering our distinguished warehouse is meticulously examined, with no detail too minute for our discerning eyes. Our exhaustive analyses delve into the intricate chemical and physical attributes, ensuring only the finest selections meet our standards. Suppliers are required to provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our relentless pursuit of excellence. Only materials epitomizing purity and integrity are deemed suitable for our high-precision medical machining services. This authentication process is a vigilant guardian, steadfastly upholding exceptional quality at every juncture, reinforcing our unwavering commitment to delivering products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Mastering Precision at Every Stage
Amidst the harmonious rhythm of our precise machining operations, each component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious benchmarks. Our continuous inspection protocol is a masterfully orchestrated symphony, adept at identifying potential discrepancies at their earliest stage, effectively preventing any non-conforming parts from advancing. This vigilant methodology is instrumental in mitigating substandard product risks, safeguarding superior quality at every production phase, and ensuring our standard of excellence is consistently upheld throughout the entire process.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) is a strategic cornerstone, imbued with foresight to identify and address potential production challenges at their inception. This proactive approach acts as an unyielding safeguard, preempting issues from escalating into mass production dilemmas. The exhaustive and precise nature of our FAI process is crucial in mitigating quality risks, ensuring our products consistently achieve peak excellence. This unwavering dedication to perfection is intricately woven into every production phase, ensuring our standards consistently transcend the highest echelons of quality.
Meticulous Comprehensive Final Inspection: Embodying the Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection of unparalleled meticulousness and rigor. This stringent process evaluates dimensions, visual allure, performance, and any customer-specific requirements with extraordinary precision. Our comprehensive inspection is not only a testament but a commitment to our relentless pursuit of quality, ensuring every product exiting our facility embodies our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009 and building upon the solid foundations laid in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended to the forefront of high-precision component machining. With an unwavering dedication to pioneering advancements for over two decades, we have immersed ourselves in technical research, establishing our position as pioneers and thought leaders in the world of precision engineering. We have cultivated an exceptional level of technical expertise, crafting a remarkable market reputation that distinguishes us as industry leaders. Our unmatched proficiency in precision medical machining services enables us to consistently attain extraordinarily tight tolerances and impeccable surface finishes, solidifying our status as the preferred choice within the medical sector.
With four strategically positioned production bases in the dynamic regions of Shenzhen and Guiyang, backed by a dedicated team of over 400 highly skilled employees, Donghui has forged a robust, vertically integrated industry network that effortlessly combines research and development, production, and delivery. This ensures we consistently fulfill and surpass diverse client requirements with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to tackle the most intricate and demanding machining tasks, upholding our revered 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)