Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our journey is powered by an unwavering commitment to perfection. We are not just passionate but renowned for our mastery in the sophisticated art and exacting science of precision manufacturing. More than mere participants, we are revered trailblazers in the industry, continuously pushing industry boundaries to extraordinary new heights. Our exceptional proficiency illuminates the world of premium component manufacturing, crafting a narrative of flawless precision and remarkable excellence. With every venture, we not only challenge but also redefine industry benchmarks, perpetually elevating standards and transforming the contours of precision manufacturing. As innovators at the forefront, we lead the evolution in designing and producing cutting-edge intelligent automation equipment. These avant-garde solutions adeptly serve a vast array of industries, meeting a diverse spectrum of applications and demands, including:
- Medical and Biotech: We deliver meticulously crafted, high-precision components and pioneering solutions for state-of-the-art medical devices, ensuring unwavering adherence to the industry's most rigorous quality standards and constantly advancing the frontiers of innovation.
- Semiconductors: We herald a transformative era in chip manufacturing and machinery by supplying essential core components, playing a pivotal role in accelerating the semiconductor industry's rapid growth.
- New Energy: Engaging actively in the vibrant and sustainable evolution of next-gen energy equipment, we take the helm in leading eco-friendly technological strides, championing a future that's greener and more sustainable.
- Automotive: We supply indispensable components that energize innovation within the automotive industry, propelling the development of smart and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We are deeply proud of our ability to craft custom non-standard components, extensively serving sectors such as medical, automation, semiconductors, and automotive. Each component we fabricate stands as a testament to our dedication to unparalleled precision and superb 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 OrderAt Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our 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, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages 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
Unmatched Examination of Incoming Materials: Ensuring Pure Excellence and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the foundation of our exemplary quality lies in the meticulous assessment and methodical inspection of each raw material that enters our prestigious facility. Our dedicated team conducts a comprehensive analysis, rigorously evaluating both the chemical and physical attributes to procure the premium materials essential for our CNC machining parts. We require suppliers to provide a Certificate of Origin along with a stamped Declaration of Conformity, emphasizing our resolute commitment to quality assurance. Only materials that demonstrate unparalleled purity and integrity are accepted, which is vital for our high-precision medical machining services. Our rigorous verification process serves as an unwavering guardian, vigilantly maintaining superior quality standards at every step, reinforcing our pledge to deliver products that embody impeccable precision and unmatched excellence.
On-Going Quality Assurance: Mastering Precision at Every Phase
Throughout the seamless orchestration of our precision machining processes, each component undergoes meticulous examination to ensure dimensions and tolerances not only meet but exceed our extraordinary standards. Our continuous inspection protocols operate as a harmoniously coordinated symphony, skillfully identifying any discrepancies at the earliest stage to prevent the advancement of non-conforming parts. This proactive vigilance is crucial in minimizing the risk of inferior products, safeguarding exceptional quality in every phase of production, and ensuring our standard of excellence is unwaveringly upheld from start to finish.
Strategic First Article Inspection (FAI): Anticipating Precision and Perfection
Our First Article Inspection (FAI) serves as a strategic cornerstone, equipped with the foresight to identify and proactively address potential production challenges from the outset. This anticipatory approach acts as a reliable guardian, preventing potential issues from evolving into significant production dilemmas. The meticulous accuracy of our FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This relentless drive for perfection is intricately woven into every stage of our production journey, guaranteeing our standards continually surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection process characterized by unparalleled meticulousness and thoroughness. This rigorous evaluation meticulously scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection is a testament to our relentless pursuit of quality, ensuring 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 steadfast reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a radiant beacon of precision and innovative excellence, was proudly established in 2009. With a rich history that reaches back to 2002, we are celebrated as a distinguished leader in the realm of high-precision component machining. Our steadfast dedication to transformative innovation propels us to the vanguard of technical research, where we continually redefine the possibilities within the precision engineering landscape. For more than twenty years, we have been daring trailblazers and visionary pioneers, setting new benchmarks and carving expansive frontiers in this ever-evolving field. We possess unparalleled technical prowess that elevates us to the summit of the industry, marking us as the true leaders in precision machining. Our exceptional expertise in precision medical machining services empowers us to consistently achieve ultra-tight tolerances and produce surface finishes of impeccable flawlessness. This solidifies our position as the medical sector's preferred partner, further enhancing our esteemed standing and reinforcing our reputation for unmatched excellence.
With four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 exceptionally talented professionals, Donghui proudly presents a robust, vertically integrated industry chain that harmoniously blends research, development, production, and delivery. This seamless integration ensures that we not only meet but surpass the diverse expectations of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are meticulously equipped to tackle the most intricate and demanding machining tasks, upholding our esteemed reputation for trailblazing leadership and unparalleled 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)