Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence. Our passion is intricately woven with our profound expertise in the art and science of precision manufacturing. As more than mere participants, we stand as distinguished leaders, consistently elevating industry standards to extraordinary heights. Our unparalleled expertise illuminates the path in the world of high-end component manufacturing, setting a new stage for supreme precision and exceptional magnificence. With each endeavor, we redefine the industry's benchmarks, constantly raising the bar and transforming the landscape of precision manufacturing. As trailblazers in innovation, we lead the design and production of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve a wide spectrum of industries, addressing a diverse array of applications and needs, including:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and pioneering solutions for state-of-the-art medical devices, ensuring rigorous compliance with the industry's most stringent quality standards and continuously pushing the boundaries of innovation.
- Semiconductors: We herald a new epoch in chip manufacturing and machinery by providing critical core components, playing a pivotal role in driving the rapid advancements of the semiconductor industry.
- New Energy: We actively contribute to the dynamic and sustainable evolution of next-generation energy equipment, leading the charge in eco-friendly technological advancements and championing the cause of a greener future.
- Automotive: By providing essential components that fuel innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unmatched precision and unwavering reliability.
Main Products
- We take immense pride in crafting bespoke non-standard components, serving extensively within the medical, automation, semiconductor, and automotive sectors. Every piece we produce is a testament to our commitment to unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of ingenuity and progress, proudly boasting an exquisite selection of over 300 state-of-the-art machines. Each of these is a testament to superior engineering and precision. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly address an expansive array of equipment categories. This unparalleled capability allows us to adeptly meet the intricate machining demands across a multitude of industries, delivering precision and efficiency that remain unmatched. We are redefining excellence by establishing new performance benchmarks, revolutionizing the industry standards with our reliability.
- Boasting a distinguished legacy of two decades, we leverage our extensive production experience alongside significant technical and process expertise. This combination ensures superior quality and innovative foresight, marking us as true trailblazers in precision engineering. We consistently provide premium solutions that cater to the sophisticated needs of our clients, cementing our position as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Scrutiny of Incoming Materials: Ensuring Purity and Integrity Beyond Compare
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the bedrock of our unparalleled quality is the meticulous evaluation and systematic inspection of every raw material that enters our highly regarded facility. Our dedicated team performs an exhaustive analysis, thoroughly assessing both the chemical and physical properties to ensure the acquisition of the finest materials essential for our CNC machining parts. We require suppliers to provide a Certificate of Origin along with a stamped Declaration of Conformity, underscoring our unwavering commitment to quality assurance. Only materials demonstrating the utmost purity and integrity gain acceptance, crucial for our high-precision medical machining services. Our stringent verification process acts as an unwavering guardian, vigilantly upholding superior quality standards at every stage, reinforcing our devotion to delivering products that embody impeccable precision and unmatched excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage with Expertise
Throughout the seamless execution of our precision machining processes, each component undergoes detailed scrutiny to ensure that dimensions and tolerances not only meet but surpass our exceptional standards. Our ongoing inspection protocols function as a masterfully coordinated symphony, adeptly identifying any discrepancies at the earliest opportunity to prevent the progression of non-conforming parts. This proactive vigilance is crucial in minimizing the risk of inferior products, safeguarding exceptional quality throughout each phase of the production process, and ensuring that our standard of excellence is consistently upheld from inception to completion.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision and Foresight
Our First Article Inspection (FAI) stands as a pivotal strategic pillar, endowed with the foresight to detect and proactively address potential production challenges at the outset. This foresighted approach serves as a reliable guardian, preventing the development of issues into extensive production dilemmas. The meticulous precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This relentless pursuit of perfection is intricately woven into every phase of our production journey, ensuring our standards consistently surpass the highest quality thresholds.
Comprehensive Final Inspection: Achieving the Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection process characterized by unrivaled meticulousness and thoroughness. This rigorous evaluation meticulously examines dimensions, visual aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection serves as a testament to our relentless pursuit of quality, ensuring that every product leaving our facility is a shining example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers reinforces our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a beacon of precision and innovation, was founded in 2009. With roots tracing back to 2002, we have established ourselves as a distinguished leader in high-precision component machining. Our unwavering commitment to transformative innovation pushes us to the forefront of technical research, where we consistently redefine the boundaries of the precision engineering landscape. For more than two decades, we have been trailblazers and visionaries, setting new standards and carving out new frontiers in this dynamic field. We boast unparalleled technical expertise that elevates us to the pinnacle of the industry, distinguishing us as true leaders. Our remarkable proficiency in precision medical machining services allows us to consistently deliver ultra-tight tolerances and impeccably flawless surface finishes. This cements our position as the preferred choice for the medical sector, further reinforcing our esteemed status and solidifying our reputation for unmatched excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled professionals, Donghui boasts a robust, vertically integrated industry chain that seamlessly merges research and development with production and delivery. This integration ensures we not only meet but exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are equipped to undertake the most intricate and demanding machining tasks, maintaining our esteemed reputation for pioneering leadership and excellence.
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)