Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment transcends mere obligation; it is driven by an ardent passion for the art and meticulous science of precision manufacturing, creating an unparalleled experience. Our unrivaled expertise serves as a beacon in the domain of high-end component fabrication, illuminating the path to meticulous precision with clarity and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a vast array of industries, adeptly addressing diverse applications, including:
- Medical and Biotech: Delivering precisely engineered, high-precision components and innovative solutions for cutting-edge medical devices, adhering to the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment by providing essential core components vital for the industry's triumph.
- New Energy: Participating in the dynamic and sustainable progression of innovative energy equipment, fostering environmentally-friendly technological advancements.
- Automotive: Supplying critical components that drive innovation within the automotive industry, supporting the development of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence: Mastery in Motion Our operations proudly showcase an extraordinary assortment of over 300 state-of-the-art machines, each a beacon of engineering prowess. Renowned for their reliability and performance, our machines are the cornerstone of our precision engineering capabilities. Machines that redefine industry standards, equipped to exceed the highest expectations., 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. From aerospace to medical devices, our versatile equipment range ensures bespoke solutions are delivered with exacting standards, transcending industry benchmarks.
- 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 legacy is one of pioneering spirit and relentless pursuit of excellence, setting us apart as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment: Where Innovation Meets Precision
High-Precision Inspection Equipment: Ensuring Uncompromising Quality in Every Component
Quality Ensurance
Exemplary Examination of Incoming Materials for Unmatched Precision
Every piece of raw material that crosses our threshold is subjected to an exhaustive, stringent vetting process. Our meticulous analyses dive deep into the chemical composition and perform an intensive inspection of the physical attributes. Upholding an unwavering commitment to quality, we mandate that every supplier furnishes a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous vetting guarantees the selection of only the finest materials for our high-precision medical machining services. Our authentication procedure ensures these materials align with the pinnacle of integrity and purity standards, embodying our steadfast dedication to excellence.
Intensive, In-Process Quality Assurance for Unparalleled Precision
Within our sophisticated machining operations, each component undergoes meticulous scrutiny, ensuring dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent, continuous inspection protocol strategically intercepts potential defects at the earliest stage, effectively preventing non-conforming parts from advancing through the production cycle. This vigilant approach is key to minimizing risks of substandard goods, assuring superior quality at every production phase, and maintaining excellence across the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a critical strategic pillar for identifying and resolving potential production challenges at the onset. This proactive stance prevents issues from proliferating into mass production. The FAI's comprehensive precision is vital in mitigating quality risks, ensuring our products consistently achieve the apex of industry standards. This dedication to excellence is woven into every facet of the production cycle, guaranteeing we surpass the highest quality benchmarks.
Meticulously Thorough Comprehensive Final Inspection
Before any product leaves our facility, it is subjected to a meticulous and exhaustive final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless dedication to quality, ensuring every dispatched part aligns with our exacting standards. We steadfastly deliver only superior quality products to our valued customers, upholding our reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has flourished as a bastion of expertise in high-precision basic component machining. Over the years, our dedication to relentless innovation and advancement has propelled us to the forefront of precision engineering. We have delved deep into technical research, establishing ourselves as forward-thinking pioneers in our field. We have garnered a vast reservoir of technical expertise, earning a prestigious market reputation that distinctly positions us as a leader in the industry. Our unparalleled capabilities in precision medical machining services consistently deliver products with incredibly tight tolerances and flawless surface finishes, securing our status as the preferred choice for precision solutions within the medical sector.
With four strategically located production bases in the vibrant hubs of Shenzhen and Guiyang, powered by a dedicated team of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly blends research and development, production, and delivery, enabling us to meet and surpass the diverse needs of our customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to handle the most intricate and demanding machining tasks, consistently maintaining our 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)