Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just fulfill a duty; we embrace the art and science of precision manufacturing with unrivaled enthusiasm and commitment. Our unparalleled expertise lights the way in high-end component fabrication, guiding the journey towards unmatched precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a wide array of industries, addressing varied applications, such as:
- Medical and Biotech: Delivering finely crafted, high-precision components and pioneering solutions for cutting-edge medical devices, consistently meeting the highest quality benchmarks.
- Semiconductors: Enhancing chip manufacturing and related equipment by providing essential core components vital to the industry's triumph.
- New Energy: Actively contributing to the robust and eco-friendly progression of innovative energy equipment, promoting sustainable technological advancements.
- Automotive: Supplying crucial components that drive innovation in the automotive industry, supporting the growth of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively serving industries such as medical, automation, semiconductor, and automotive, ensuring unparalleled precision and exceptional quality.
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 capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. This solid foundation distinguishes us as true pioneers in the realm of precision engineering, delivering unmatched excellence that raises the industry standard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Superior Incoming Material Examination Process
Every piece of raw material that finds its way into our warehouse is put through an exhaustive and rigorous examination procedure. Our scrupulous analyses encompass assessing the chemical composition and conducting an in-depth inspection of physical properties. We are steadfast in our commitment to excellence, demanding that each supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous process ensures that only the finest materials are curated for utilization in our high-precision medical machining services. Our rigorous authentication system guarantees these materials meet the pinnacle of integrity and purity, perfectly dovetailing with our unwavering pledge to quality.
Comprehensive In-Process Quality Assurance
Amidst our intricate and precise machining operations, every component is subject to meticulous scrutiny to ascertain that its dimensions and tolerances not only meet but also surpass our rigorous specifications. Our diligent and continuous inspection protocol is meticulously crafted to intercept potential defects at the incipient stage, thereby precluding non-conforming parts from advancing to the succeeding phases. This vigilant approach is instrumental in mitigating the risk of substandard goods, ensuring superior quality at each phase of production, and sustaining excellence throughout the entire process.
Strategic and Insightful First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategy, essential for the early identification and resolution of potential production challenges. This proactive methodology effectively forestalls issues from proliferating into mass production. The comprehensive and precise nature of our FAI process is pivotal in minimizing quality risks, ensuring our products consistently attain the zenith of industry standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we not only meet but also exceed the most stringent quality benchmarks.
Meticulously Thorough Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulously detailed final inspection. This process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless dedication to quality, ensuring that every part dispatched from our facility adheres to our exacting standards. We are unwavering in our commitment to delivering only the highest quality products to our esteemed customers, fortifying 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 risen to become a beacon of excellence in the realm of high-precision basic component machining. With an unwavering commitment to innovation and excellence over the past two decades, we have immersed ourselves in deep technical research, earning our stature as pioneers at the forefront of precision engineering. We have accumulated a vast reservoir of technical expertise, establishing a stellar market reputation that distinguishes us as an industry leader. Our unparalleled capabilities in precision medical machining services ensure we consistently achieve the tightest tolerances and immaculate surface finishes, positioning us as the go-to choice in the medical sector.
With four strategically positioned production bases in the dynamic and flourishing hubs of Shenzhen and Guiyang, supported by a committed workforce of over 400 highly skilled employees, Donghui has forged a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to meet and exceed the multifaceted needs of our customers with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and challenging machining tasks, sustaining our esteemed reputation for excellence and innovation at the forefront of the industry.
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)