Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are powered by more than a mission; our journey is a tapestry woven with passion and expertise in the fine artistry and meticulous science of precision manufacturing. Within this dynamic realm, we stand not merely as participants but as trailblazers, leading the charge to set and surpass new industry standards. Our unparalleled expertise lights the way in the realm of high-end component manufacturing, forging a path to flawless precision and extraordinary excellence. We are not just meeting industry benchmarks; we are reshaping and elevating them with every project we undertake. As pioneers in innovation, we are at the cutting edge of designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly cater to a wide variety of industries, addressing a vast spectrum of applications and requirements, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for innovative medical devices, we ensure adherence to the industry's most stringent quality standards.
- Semiconductors: Transforming the landscape of chip manufacturing and its machinery by providing indispensable core components that are crucial to the rapid advancement of the semiconductor industry.
- New Energy: Playing a pivotal role in the dynamic and sustainable development of next-generation energy equipment, we are at the forefront of eco-friendly technological breakthroughs.
- Automotive: Offering vital components that fuel innovation in the automotive industry, we support the evolution of smart and electric vehicles with unparalleled precision and reliability.
Main Products
- We take immense pride in crafting tailor-made non-standard components, serving the medical, automation, semiconductor, and automotive sectors extensively. Each piece exemplifies our commitment to delivering unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 meticulously curated 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, setting new benchmarks in performance and reliability.
- 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 sets us apart as true pioneers in the realm of precision engineering, consistently delivering top-tier solutions to meet the sophisticated demands of our clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: An Ode to Supreme Purity and Impeccable Integrity
Every raw material entering our esteemed Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. warehouse undergoes a comprehensive, meticulous examination where no detail is spared. This stringent analysis delves deeply into the chemical and physical attributes, ensuring that only materials of the highest calibre grace our production line. Our suppliers are bound to provide a Certificate of Origin alongside a stamped Declaration of Conformity-testimonies to our relentless pursuit of perfection. Only materials that meet our exceptional standards of purity and integrity are deemed fit for our intricate medical machining services. This robust authentication process acts as an unwavering sentinel of quality, embodying our commitment to deliver products of unmatched refinement and precision.
Intensive In-Process Quality Assurance: Crafting Masterpieces with Precision at Every Turn
Within the harmonious rhythm of our precise machining operations at Shenzhen Donghui, each component faces rigorous scrutiny to ensure all dimensions and tolerances not only meet but soar beyond our ambitious benchmarks. Our continuous inspection protocol operates as a meticulously orchestrated symphony, expertly identifying potential discrepancies at the earliest possible stage, effectively preventing any non-conforming parts from proceeding. This vigilant approach is pivotal in mitigating the risk of substandard products, safeguarding superior quality throughout every phase of production, and ensuring our lofty standards of excellence are consistently upheld.
Strategic First Article Inspection (FAI): Proactively Securing Precision and Flawlessness
Our First Article Inspection (FAI) is a strategic linchpin, equipped with foresight to preemptively identify and resolve potential production hurdles at their inception. This proactive methodology acts as a steadfast bulwark against issues escalating into larger production challenges. The exhaustive precision of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the zenith of excellence. Our unwavering dedication to perfection is seamlessly integrated into every phase of the production journey, ensuring our standards consistently surpass the highest benchmarks of quality.
Meticulous Comprehensive Final Inspection: The Epitome of Perfection Embodied
Before any product leaves the premises of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., it undergoes a final inspection renowned for its unparalleled meticulousness and rigor. This exhaustive process evaluates dimensions, visual appeal, performance, and any specific customer requirements with extraordinary exactitude. Our comprehensive inspection not only affirms our commitment but stands as a testament to our relentless pursuit of quality, ensuring each product that departs our facility is a beacon of our stringent standards. Our dedication to delivering only the finest quality products to our esteemed clientele fortifies our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended to a position of distinction as a venerated leader in the domain of high-precision component machining. For over two decades, fueled by an unwavering dedication to groundbreaking innovation, we have delved deep into technical research, establishing ourselves as pioneers and visionaries within the realm of precision engineering. We boast an exceptional depth of technical prowess, fostering a remarkable market reputation that indisputably distinguishes us as industry frontrunners. Our unparalleled expertise in precision medical machining services empowers us to consistently achieve ultra-tight tolerances and impeccably pristine surface finishes, securing our stature as the premier choice within the medical sector.
With four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by a devoted team of over 400 highly adept employees, Donghui has cultivated a robust, vertically integrated industry chain that flawlessly integrates research and development, production, and delivery. This guarantees that we consistently fulfill and exceed the diverse expectations of our clients with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)