Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by more than just obligation; our journey intertwines passion with expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not just participants but leaders, setting new heights in industry standards. Our unmatched expertise illuminates the path in the domain of high-end component manufacturing, paving the way for flawless precision and extraordinary excellence, reshaping industry benchmarks with every endeavor. As trailblazers in innovation, we are at the forefront of designing and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve an extensive variety of industries, catering to a broad spectrum of applications and requirements, including:
- Medical and Biotech: Providing meticulously crafted, high-precision components and innovative solutions for pioneering medical devices, ensuring compliance with the industry's most rigorous quality standards.
- Semiconductors: Revolutionizing chip manufacturing and its machinery by supplying essential core components pivotal to the fast-paced growth of the semiconductor industry.
- New Energy: Engaging in the vibrant and sustainable advancement of next-generation energy equipment, spearheading eco-friendly technological innovations.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, fostering the development of smart and electric vehicles with unmatched precision and dependability.
Main Products
- We pride ourselves on crafting custom non-standard components, extensively catering to the medical, automation, semiconductor, and automotive sectors, delivering unrivaled precision and superior quality in every piece.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Elevate your expectations with our operations-a true embodiment of ingenuity and progress, presenting an impressive collection of over 300 state-of-the-art machines. Each machine stands as a testament to superior engineering and precision, setting new standards in the industry. Globally Acclaimed Precision Machining ToolsOur fleet of cutting-edge machinery equips us to expertly tackle an extensive array of equipment categories, empowering us to meet the intricate machining demands across multiple industries. We deliver precision and efficiency like no other, redefining excellence by setting new performance benchmarks and revolutionizing industry standards with unparalleled reliability.
- With a rich legacy spanning two decades, we harness our vast production experience paired with significant technical and process expertise. This powerful combination ensures superior quality and innovative foresight, marking us as pioneers in precision engineering. We consistently offer premium solutions that meet the sophisticated needs of our clients, reinforcing our status as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unwavering Scrutiny of Incoming Materials: Ensuring Purity and Integrity Across the Board
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering pursuit of excellence commences with a meticulous examination of each raw material entering our esteemed facility. Our vigilant team conducts a thorough analysis, meticulously evaluating both chemical and physical attributes to guarantee the pristine quality crucial for our precision CNC machining parts. We require suppliers to provide a Certificate of Origin coupled with an endorsed Declaration of Conformity, epitomizing our steadfast dedication to quality. Materials that meet the pinnacle of purity and integrity standards are embraced, essential for our high-precision medical machining services. Our rigorous verification process acts as a steadfast sentinel, upholding exceptional quality standards at each stage, reinforcing our promise to deliver products that represent pure precision and unrivaled excellence.
In-Process Quality Assurance: Mastering Precision at Every Step
Amid the seamless orchestration of our precise machining operations, each component undergoes stringent scrutiny to ensure dimensions and tolerances not only meet but surpass our elevated standards. Our perpetual inspection procedures operate as a masterfully synchronized symphony, adeptly identifying discrepancies at the earliest opportunity to thwart the progression of non-conforming parts. This proactive vigilance is indispensable in mitigating risks of substandard products, safeguarding exceptional quality across every production phase, and ensuring our standard of excellence remains steadfastly upheld throughout the entire manufacturing process.
Strategic First Article Inspection (FAI): Foreseeing Precision and Preventing Flaws
Our First Article Inspection (FAI) serves as a strategic linchpin, endowed with the insight to foresee and rectify potential production challenges from the outset. This proactive strategy acts as a steadfast guardian, averting issues from escalating into extensive production concerns. The meticulous precision of our FAI process is integral in minimizing quality risks, ensuring our products consistently achieve the zenith of excellence. This unwavering dedication to perfection is intricately woven into every production step, ensuring our standards consistently surpass the epitome of quality.
Thorough Final Inspection: Reaching the Apex of Excellence
Before any product departs our facility, it undergoes a final inspection process epitomizing unmatched meticulousness and rigor. This comprehensive evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with extraordinary precision. Our exhaustive inspection underscores our relentless pursuit of quality, ensuring every product leaving our facility exemplifies our stringent standards. Our unwavering commitment to providing only the highest quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unyielding reliability.
Packaging & Shipping
Company Profile
Established in 2009 and building upon a rich heritage dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a shining example of brilliance in the field of high-precision component machining. For over two decades, our unwavering commitment to groundbreaking innovation has propelled us towards the cutting edge of technical research, solidifying our position as both pioneers and visionaries in the realm of precision engineering. We possess an extraordinary degree of technical mastery, earning an illustrious reputation in the market that sets us apart as industry leaders. Our unparalleled expertise in precision medical machining services enables us to consistently achieve extremely tight tolerances and impeccably flawless surface finishes. This fortifies our standing as the preeminent choice for the medical sector.
With four strategically located production bases in the bustling cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 exceptionally skilled professionals, Donghui has crafted a robust, vertically integrated industry chain that seamlessly combines research and development, production, and delivery. This ensures that we not only meet but exceed the varied demands of our clients with unparalleled efficiency and superior quality. Our cutting-edge facilities are designed to tackle the most complex and challenging machining tasks, upholding our esteemed reputation for excellence and pioneering 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)