Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends simple obligation; it is driven by a passionate fervor for the exquisite craft and meticulous science of precision manufacturing. Our unmatched expertise serves as a guiding light in the realm of high-end component fabrication, illuminating the path to meticulous precision. We are pioneering the development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, upholding the pinnacle of quality standards.
- Semiconductors: Empowering chip production and its associated equipment by supplying indispensable core components that are crucial to the industry's success.
- New Energy: Engaging in the vigorous and sustainable advancement of innovative energy equipment, furthering eco-friendly technological progress.
- Automotive: Providing vital components that fuel innovation within the automotive sector, aiding the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 cutting-edge machines, each a testament to our commitment to technological advancement and precision. 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, ensuring our position as leaders in delivering top-tier engineering solutions.
- With a rich history spanning two decades, we leverage vast 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 and as trusted partners in the journey of technological excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Inspection
Every raw material that enters our warehouse embarks on a journey of rigorous and comprehensive examination. Our detailed analyses encompass both the chemical composition and the complete spectrum of physical properties. We demand excellence by requiring every supplier to furnish a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous selection process ensures that only the highest caliber materials are chosen for our precision-driven medical machining services. Our rigorous authentication framework guarantees materials of the utmost integrity and purity, perfectly harmonizing with our steadfast dedication to superior quality.
In-Depth In-Process Quality Assurance
Amidst our intricate machining operations, each component undergoes detailed scrutiny to ensure its dimensions and tolerances not only meet but surpass our exacting standards. Our ongoing inspection protocols are expertly crafted to intercept potential defects at the earliest stages, effectively preventing non-conforming parts from advancing further. This diligent approach is crucial in mitigating the risk of substandard goods, thereby ensuring premium quality at every phase of production and preserving excellence throughout the entire manufacturing journey.
Pioneering First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategy that plays a crucial role in identifying and addressing potential production issues at the earliest possible stage. This proactive methodology averts the escalation of problems into large-scale production hurdles. The meticulous precision of our FAI process is integral to minimizing quality risks, allowing our products to consistently reach the zenith of industry standards. This unwavering dedication to excellence permeates every facet of our production cycle, ensuring we not only meet but exceed the most stringent quality benchmarks.
Precision-Driven Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to an exhaustive and meticulous final inspection process. This rigorous examination encompasses dimensions, visual aesthetics, performance metrics, and any specialized customer requirements. Our comprehensive inspection is a testament to our unyielding dedication to quality, ensuring that every component delivered from our facility adheres to our exacting standards. We are committed to providing our valued customers with only the utmost quality products, upholding and enhancing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its foundational roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a paragon of excellence in the realm of high-precision component machining. With an unwavering commitment to innovation that has spanned two remarkable decades, we have immersed ourselves in intensive technical research, proudly establishing our legacy as distinguished pioneers in precision engineering. We have garnered an extensive reservoir of technical expertise, cultivating a market reputation so stellar that it singularly distinguishes us as industry leaders. Our unrivaled capabilities in precision medical machining services consistently deliver extraordinarily tight tolerances and pristine surface finishes, solidifying our status as the preferred choice within the medical sector.
With four meticulously positioned production bases nestled within the dynamic epicenters of Shenzhen and Guiyang, supported by a committed workforce exceeding 400 highly skilled professionals, Donghui has sculpted a formidable and vertically integrated industrial chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we not only meet but surpass the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are adeptly equipped to tackle 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)