Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we stand as a beacon of commitment to exceeding benchmarks through our unwavering devotion to the intricate fusion of artistic craftsmanship and scientific precision, essential to mastering manufacturing excellence. Our unrivaled expertise shines brightly, guiding us through the esteemed domain of elite component production with an unmatched level of proficiency and skill. As trailblazers in innovation, we establish the gold standard in developing and delivering cutting-edge intelligent automation equipment. Our advanced solutions are meticulously designed to integrate seamlessly across a diverse array of industries, catering to varied demands in a multitude of applications, which include:
- Medical and Biotech: Providing meticulously engineered, ultra-precise components and visionary solutions, purpose-built for the forthcoming generation of groundbreaking medical devices.
- Semiconductors: Enhancing chip production and related machinery with essential components that are both critical and indispensable to the industry's success.
- New Energy: Playing a pivotal role in the innovative, sustainable progression of cutting-edge energy equipment that defines the future.
- Automotive: Delivering crucial components that drive innovation within the automotive industry, fostering the development of smart and electric vehicle technology.
Main Products
- Masterfully crafted, our bespoke, non-standard components serve as the cornerstone of excellence in key sectors including medical, automation, semiconductor, and automotive, providing unparalleled quality and reliability.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are distinguished by an unrivaled fleet of over 300 of the industry's most advanced machinery units. This expansive and varied collection ensures we are always at the cutting edge of innovation and adaptability, providing state-of-the-art solutions. By maintaining such an extensive assortment, we remain equipped to handle the ever-evolving demands of our industry. These Top-Tier Branded machinery units are the foundation of our precision-focused manufacturing operations. With our high-caliber machines, we expertly meet intricate and stringent machining demands across a plethora of industries with unmatched precision and efficiency. Our wide-ranging capabilities guarantee strict compliance with top-tier quality standards, delivering bespoke customization that is meticulously tailored to meet the exclusive requirements of our esteemed clientele.
- Boasting a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience seamlessly integrated with profound technical expertise and robust process strengths. This solid foundation ensures superior quality and fosters groundbreaking innovation, enabling us to consistently provide exceptional products that exceed expectations and redefine industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend the norms, employing unparalleled precision that sets us apart as the epitome of industry excellence.
Every piece of raw material entering our secure warehouse undergoes a thorough, unprecedented evaluation, establishing a benchmark in quality assurance. Our meticulous scrutiny encompasses an in-depth chemical composition analysis, complemented by a comprehensive examination of physical properties. We maintain the highest standards by requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the most premium materials are integrated into our advanced medical machining services. This rigorous verification process guarantees material integrity and purity, flawlessly aligning with our steadfast commitment to superior standards.
Rigorous In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail fuel our relentless pursuit of perfection.
Throughout the intricate machining process, each component undergoes meticulous scrutiny, ensuring dimensions and tolerances are impeccably aligned with our stringent specifications. This ongoing inspection protocol is crucial to proactively intercepting any potential defects, preventing any non-conforming parts from advancing. Through this vigilant strategy, we significantly reduce the risk of substandard goods, ensuring that superior quality is consistently upheld across every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock for impeccable precision and excellence.
Our First Article Inspection (FAI) is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges at the outset. This proactive approach ensures that issues are addressed before they escalate into mass production concerns. This comprehensive FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence in every stage of the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unmatched quality and precision.
Before any product departs from our facility, it is subject to an exhaustive final inspection. This rigorous evaluation encompasses dimensions, visual appearance, and performance, alongside customer-specific requirements. This extensive inspection serves as a testament to our relentless dedication to quality, ensuring every part we deliver meets our stringent standards, providing only the finest quality products to our esteemed customers.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, rooted in a legacy dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as an illustrious beacon of precision and groundbreaking innovation in the high-precision component machining landscape. Our notable journey, fueled by an unyielding passion and steadfast dedication to the art and science of engineering, spans over two decades of remarkable achievements. We have masterfully carved our niche as trailblazers in precision engineering, relentlessly advancing technical research and setting industry benchmarks of unparalleled excellence. We have cultivated an unparalleled depth of technical acumen, establishing ourselves as market leaders heralded for remarkable excellence. Our supreme command in precision medical machining services consistently achieves the most exacting tolerances and delivers flawless surface finishes. This solidifies our reputation as the premier choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, situated in the dynamic and bustling centers of Shenzhen and Guiyang, supported by an inspiring workforce of over 400 exceptionally skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This seamlessly melds research and development, cutting-edge production, and flawless delivery, ensuring that we meet and surpass the diverse needs of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious 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)