Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence transforms craftsmanship into an art form. Our pursuit of perfection fuels our efforts to excel in precision and innovate in manufacturing science. Our expertise stands as a beacon of unparalleled precision, guiding the way in the esteemed realm of high-end component manufacturing. At the cutting edge of innovation, we lead by example in the design and engineering of revolutionary intelligent automation equipment. Our advanced solutions are seamlessly integrated across a wide range of industries, expertly meeting myriad needs with precision applications, including:
- Medical and Biotech: We craft precisely engineered, highly accurate components and pioneering solutions to shape the future of medical technology.
- Semiconductors: We enhance chip production and associated equipment with essential core components.
- New Energy: We play a crucial role in the sustainable development of innovative energy equipment.
- Automotive: We provide vital components that drive automotive innovation, supporting the growth of intelligent and electric vehicles.
Main Products
- We expertly craft non-standard customized components, serving key sectors such as medical, automation, semiconductor, and automotive industries with exceptional distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an extraordinary fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures we uphold a vast and dynamic array of equipment categories, enabling us to remain at the forefront of innovation and adaptability across various industrial landscapes. These premium branded machinery units form the backbone of our precision-focused manufacturing. Empowering us to meet the multifaceted and challenging machining demands of diverse industries with outstanding precision and efficiency, our extensive capabilities guarantee adherence to the utmost quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique requirements of our distinguished clientele, consistently elevating their expectations with every project.
- With an illustrious 20-year legacy, we possess a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise equips us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in 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
Unmatched Precision in Material Inspection: Elevating Standards Beyond Industry Norms
In the heart of our cutting-edge warehouse, every raw material is subjected to an exhaustive evaluation process, establishing new benchmarks for quality assurance brilliance. Our meticulous procedures include an in-depth analysis of chemical compositions coupled with a comprehensive assessment of physical attributes. We uphold the highest standards by mandating suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the finest materials are selected for our precision-driven medical machining services. This rigorous validation process ensures the pristine quality and reliability of materials, consistently achieving and surpassing our elevated standards of precision and quality.
Unrelenting Quality Control During Machining: Striving for Perfection
Throughout the complex machining process, each component undergoes meticulous inspection to ensure its dimensions and tolerances conform to our exacting specifications. Our rigorous inspection protocol remains vigilant, intercepting potential defects and preventing non-conforming parts from proceeding. This diligent methodology significantly reduces the risk of inferior products, ensuring that superior quality is unwaveringly maintained at every pivotal stage of production.
Comprehensive First Article Inspection (FAI): A Proactive Framework for Superior Excellence
Our First Article Inspection (FAI) process is fundamental to our quality strategy, expertly identifying and resolving potential production issues right from the start. This proactive approach ensures challenges are rectified before scaling up to mass production, thereby securing a flawless flow of exceptional production. Our meticulous FAI process is crucial in minimizing quality risks, ensuring our products consistently meet the highest standards, highlighting our steadfast commitment to excellence throughout the entire production lifecycle.
Detailed and Comprehensive Final Inspection: The Definitive Judge of Quality
Before any product leaves our facility, it undergoes an exhaustive and intricate final inspection. This meticulous evaluation covers dimensions, aesthetic appeal, performance, and custom client specifications. Our thorough inspection process stands as a testament to our unwavering commitment to quality, ensuring each dispatched item meets our exacting standards, thereby delivering only the finest products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. Over the past two decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled excellence. Our Company Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging machining tasks, cementing our prestigious reputation for excellence and 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)