Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed; we are fueled by an ardent passion for the artistry and intricate science of precision manufacturing. Our unrivaled expertise shines brightly in the high-end component fabrication landscape, serving as a beacon illuminating the path to exceptional precision and excellence. We are trailblazers in developing and producing innovative intelligent automation equipment. Our state-of-the-art solutions serve a vast array of industries, effectively catering to diverse applications, including:
- Medical and Biotech: Offering meticulously engineered, high-precision components and cutting-edge solutions for advanced medical devices, consistently upholding the highest quality standards.
- Semiconductors: Fortifying chip production and its associated equipment by providing indispensable core components, crucial for the industry's thriving success.
- New Energy: Committed to the robust and sustainable progression of innovative energy equipment, thereby advancing eco-friendly technological innovation.
- Automotive: Supplying vital components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and unparalleled quality.
Why choose us
Core Advantages
- A Fleet of Excellence: An Unrivaled Force in Machining. Experience the pinnacle of precision with our extensive fleet of top-tier, high-performance machines. Our operations proudly showcase an extraordinary assortment of over 300 systems, renowned for their supreme precision and performance capabilities. Renowned: Our reputation precedes us, as we are known for utilizing only the most esteemed machinery in the industry. Machines: Each machine within our arsenal is a testament to engineering excellence, ensuring we can cater to the most demanding machining requirements.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, making us the go-to choice for those who seek perfection.
- 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. We've established ourselves as pioneers in the realm of precision engineering, continually pushing the boundaries of what's possible.
State-of-the-Art Production Equipment: Our facilities are equipped with the latest in technological advancements, ensuring that every product is crafted with superior precision and excellence.
High-Precision Inspection Equipment: We employ cutting-edge inspection technologies to ensure that every component not only meets but exceeds the highest quality standards.
Quality Ensurance
Unmatched Incoming Material Examination Excellence
Every raw material that graces our warehouse threshold undergoes a comprehensive and rigorous examination process. Our thorough analyses encompass detailed assessments of the chemical composition and an exhaustive inspection of physical properties. We ensure unparalleled quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This rigorous vetting ensures only the highest quality materials are chosen for use in our precision-driven medical machining services. Our exacting authentication process ensures these materials adhere to the utmost standards of integrity and purity, seamlessly aligning with our resolute devotion to quality.
In-Process Quality Assurance Precision
Throughout our sophisticated and precise machining operations, every component is meticulously evaluated to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection protocol is strategically crafted to detect potential defects at the earliest stages, thereby halting non-conforming parts from advancing through the production line. This vigilant approach is crucial in minimizing the risk of inferior goods, ensuring unparalleled quality at each phase of production, and perpetuating excellence throughout the entire process.
Pioneering First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy essential for identifying and resolving potential production challenges at their inception. This anticipatory approach prevents issues from escalating into full-scale production. The comprehensive and precise nature of our FAI process is integral in mitigating quality risks, ensuring our products consistently reach the apex of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and surpass the highest quality benchmarks.
Thorough Comprehensive Final Inspection Excellence
Before any product departs our facility, it undergoes an exhaustive and meticulous final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless dedication to quality, ensuring every part dispatched from our facility meets our exacting standards. We are unwavering in delivering only the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2002 and officially established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of precision and innovation in the world of high-precision component machining. With unwavering commitment to technological advancement over the past two decades, we have positioned ourselves as trailblazers in the realm of precision engineering, continuously pushing the boundaries of what is possible. We have cultivated unparalleled technical expertise, earning an exemplary market reputation that distinguishes us as industry leaders. Our precision medical machining services are second to none, consistently achieving exceptionally tight tolerances and flawless surface finishes. This steadfast dedication to quality and precision makes us the preferred partner in the medical sector.
With four strategically positioned production bases located in the dynamic regions of Shenzhen and Guiyang, and supported by a dedicated team of 400 highly skilled professionals, Donghui has developed a comprehensive and vertically integrated industry chain. This seamlessly integrates research, development, production, and delivery, allowing us to surpass customer expectations with unmatched efficiency and superior quality. Our cutting-edge facilities are adept at executing the most complex 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)