Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not merely a duty; it is an impassioned pursuit of the art and science of precision manufacturing. Our commitment is deep-rooted, driven by a passion for excellence. Our unrivaled expertise is a beacon in the high-end component fabrication arena, setting the benchmark for exceptional precision and quality craftsmanship. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions expertly cater to a wide array of industries, meeting diverse applications with unmatched efficacy:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and innovative solutions that enhance state-of-the-art medical devices, ensuring adherence to the highest quality standards in the industry.
- Semiconductors: We empower the semiconductor industry, providing crucial core components essential for the success and advancement of chip production and its associated equipment.
- New Energy: We are actively engaged in the progressive and sustainable development of cutting-edge energy equipment, promoting eco-friendly technological advancements that drive the future.
- Automotive: We provide essential components that fuel innovation within the automotive industry, supporting the evolution of smart and electric vehicles with our expertly crafted solutions.
Main Products
- We are specialists in non-standard customized components, widely serving the medical, automation, semiconductor, and automotive sectors. Our focus is on delivering unparalleled precision and superior quality in every product.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This exceptional capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring that each product we create meets the highest standards of excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This powerful combination guarantees exceptional quality and forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering. Our legacy of excellence continues to redefine industry benchmarks.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Examination
Every raw material entering our facility is subjected to a rigorous and comprehensive examination process. Our detailed assessments involve a thorough analysis of both the chemical composition and physical properties. Upholding our unwavering dedication to excellence, we mandate that all suppliers provide a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that only superior materials are integrated into our high-precision medical machining services. Our stringent verification procedures guarantee that these materials adhere to the highest standards of purity and integrity, perfectly resonating with our unswerving commitment to quality.
Meticulous In-Process Quality Assurance
Throughout our intricate machining operations, each component is meticulously examined to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection protocol is uniquely crafted to identify potential defects early, effectively preventing non-conforming parts from advancing to subsequent stages. This proactive strategy is crucial in minimizing the risk of substandard products, ensuring superior quality at every production phase, and maintaining excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy vital for early identification and resolution of potential production challenges. This forward-thinking approach stops issues from escalating into large-scale production. The exhaustive and precise nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently reach the highest standards. This unwavering commitment to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the most rigorous quality benchmarks.
Thorough and Meticulous Final Inspection
Before any of our products leave our premises, they are subjected to a meticulous and comprehensive final inspection. This process rigorously scrutinizes dimensions, visual appearance, performance, and any specific customer requirements. Our thorough inspection process stands as a testament to our relentless pursuit of excellence, ensuring that every part dispatched from our facility meets our exacting standards. We are committed to delivering only the highest quality products to our esteemed customers, reinforcing our reputation for reliability and excellence.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking 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)