Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than just a duty-it's an impassioned pursuit of the art and science of precision manufacturing, where craftsmanship meets technological mastery. Our unparalleled expertise is a beacon in the sophisticated world of high-end component creation, guiding us towards flawless precision and excellence. We are at the forefront of innovation, leading the charge in developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to meet the dynamic needs of various industries, offering versatile applications, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and breakthrough solutions for cutting-edge medical devices, maintaining the utmost quality standards.
- Semiconductors: Enhancing chip manufacturing and its related equipment by providing essential core components that are pivotal to the industry's triumph.
- New Energy: Promoting robust and sustainable progression in innovative energy equipment, driving the advancement of eco-friendly technological innovations.
- Automotive: Supplying critical components that drive innovation in the automotive sector, supporting the transformation of smart and electric vehicle technologies.
Main Products
- Our specialty lies in crafting non-standard customized components that excel in precision and superior quality, serving the medical, automation, semiconductor, and automotive sectors with distinction.
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 vast and diverse spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries, all with an unmatched level of precision and efficiency. Our commitment to excellence ensures that we can meet the most exacting standards across various applications.
- With a rich history spanning two decades, we leverage extensive production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our legacy is built on a foundation of excellence, continuously pushing the boundaries of what is possible in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that graces our warehouse entrance is subjected to a highly detailed and rigorous examination regime. Our intricate analyses entail a deep dive into the chemical composition and an exhaustive inspection of the physical attributes. We are unwavering in our dedication to quality, demanding that each supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only materials of the finest caliber are selected for our precision-driven medical machining services. Our thorough authentication process guarantees that these materials meet the most stringent standards of integrity and purity, perfectly embodying our persistent commitment to quality excellence.
Intensive In-Process Quality Assurance
In the heart of our complex and precise machining operations, every single component undergoes meticulous scrutiny to ensure that its dimensions and tolerances not only meet but surpass our rigorous specifications. Our vigilant and continuous inspection protocol is strategically implemented to catch potential defects at the earliest stage, thereby preventing non-conforming parts from reaching the next stages. This proactive approach is crucial in minimizing the risk of substandard goods, ensuring unrivaled quality at every phase of production, and sustaining excellence throughout the entire manufacturing process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a strategic cornerstone in identifying and remedying potential production challenges at the very beginning. This proactive strategy prevents issues from escalating into mass production setbacks. The all-encompassing and precision-oriented nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every thread of the production cycle, ensuring that we not only meet but exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a scrupulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any specific customer requirements with meticulous attention. Our comprehensive inspection procedure is a powerful reflection of our relentless commitment to quality, ensuring that each piece dispatched from our facility meets our elevated standards. We are unwavering in our mission to deliver only the highest quality products to our valued customers, solidifying our reputation for excellence and reliability.
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)