Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to excellence is unwavering, as we blend innovation with the finest precision. We are dedicated artisans in the realm of manufacturing, where each product is a magnificent rendition of perfect craftsmanship. Our devotion to technological brilliance and artisan quality makes us leaders in our field, consistently delivering flawless components that are a cut above the rest. Our unmatched prowess in precision engineering sets the standard. We expertly navigate the complex art of component manufacturing with skill and refinement, ensuring excellence at every step. As trailblazers in innovation, we pioneer the art of crafting and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions effortlessly integrate into a wide array of industries, skillfully addressing diverse needs in numerous applications, such as:
- Medical and Biotech: Showcasing impeccably engineered, ultra-high-precision components with transformative solutions, crafted for the vanguard of advanced medical technologies.
- Semiconductors: Enhancing chip fabrication and associated machinery with essential components that drive remarkable advancements and improve efficiency.
- New Energy: Serving as a cornerstone in the innovative and sustainable development of next-generation energy equipment, redefining the future landscape of energy solutions.
- Automotive: Providing crucial components that fuel innovation in the automotive sector, propelling the growth of intelligent and electric vehicles.
Main Products
- Our expertly crafted, non-standard customized components represent the zenith of quality and precision. Serving critical industries such as medical, automation, semiconductor, and automotive fields, we deliver unmatched accuracy and enduring quality that withstands the passage of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are not just powered but truly elevated by an impressive fleet of over 300 of the industry's most sophisticated machinery units. This extensive and advanced collection is a testament to our commitment to remaining at the forefront of innovation and adaptability. By consistently delivering groundbreaking solutions, we don't just set the industry's standard for excellence; we redefine it, propelling forward with unparalleled precision and superior quality. These Top-Tier Branded Our pioneering machinery units form the bedrock of our precision-driven manufacturing process, offering the vital infrastructure that supports our rigorous production standards. By leveraging these state-of-the-art tools, we are able to continuously refine and elevate our manufacturing strategies, achieving consistently exceptional results. With our high-caliber machines at the helm, we adeptly execute complex and demanding machining requirements across an array of industries, attaining an unmatched degree of precision and efficiency. Our comprehensive capabilities ensure unwavering adherence to the highest quality standards while providing bespoke customization that not only meets but surpasses the unique needs of our esteemed clients, far exceeding their loftiest expectations.
- With a prestigious 20-year legacy, we draw from a rich reservoir of manufacturing experience seamlessly woven with comprehensive technical expertise and process mastery. This harmonious blend ensures not just exceptional quality but groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations, setting new benchmarks of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: In the realm of innovation and precision, we are not merely participants but pioneers, surpassing industry expectations by employing unmatched methodologies. We take pride in leading the industry with superior quality benchmarks, revolutionizing standards at every production phase.
Every raw material entering our cutting-edge warehouse undergoes exhaustive evaluation, setting a new benchmark in quality assurance. Our all-encompassing approach incorporates intricate chemical composition analysis and precise physical property assessment. We mandate that our suppliers provide a Certificate of Origin accompanied by a verified Declaration of Conformity, ensuring the utilization of only premium materials in our advanced medical machining services. This rigorous validation process safeguards material integrity and purity, perfectly aligning with our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and meticulous attention to detail fuel our unwavering pursuit of perfection with steadfast dedication.
During the intricate machining process, each component is meticulously examined to ensure dimensions and tolerances precisely match our rigorous specifications. This continuous inspection protocol is essential for proactively identifying and intercepting potential defects, preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of substandard goods, consistently ensuring exceptional quality throughout every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the foundation of immaculate excellence and unrivaled precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they escalate into mass production obstacles. This comprehensive FAI process is indispensable in minimizing quality risks, guaranteeing our products consistently achieve the highest standards, and embodying our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision.
Before any product leaves our facility, it undergoes a thorough and comprehensive final inspection. This rigorous evaluation includes dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the highest quality.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with roots tracing a notable lineage back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. epitomizes brilliance in the elite domain of high-precision component machining. Our celebrated journey, ignited by an unwavering dedication to the meticulous art and sophisticated science of engineering, spans over two decades of continuous innovation and immaculate precision. We have masterfully forged our standing as pioneers in precision engineering, perpetually pushing the boundaries of technical research and setting revolutionary standards within the industry. We have cultivated an extraordinary level of technical prowess, making us market leaders with a dazzling reputation for unrivaled excellence. Our unmatched expertise in precision medical machining services consistently fulfills even the most stringent tolerances, providing immaculate surface finishes. This solidifies our position as the foremost choice in the medical sector, where our precision and unwavering reliability continually garner unshakable trust and admiration.
With four strategically positioned production bases, in the vibrant and bustling hubs of Shenzhen and Guiyang, supported by an impressive cadre of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that flawlessly unites research and development, superior production, and impeccable delivery. This ensures we consistently fulfill and exceed the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are fully equipped to undertake the most complex and demanding machining tasks, reinforcing our esteemed 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)