Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than just a duty; it is fueled by an intense passion for the refined artistry and exacting science of precision manufacturing. Our unwavering dedication shapes every facet of our operations, ensuring excellence at every turn. With unparalleled expertise lighting the way, we stand at the forefront of high-end component fabrication, guiding the journey to impeccable precision and innovation. As leaders in the creation and production of avant-garde intelligent automation equipment, our state-of-the-art solutions serve a broad spectrum of industries. We adeptly meet the demands of various applications, which include:
- Medical and Biotech: Offering meticulously crafted high-precision components and breakthrough solutions for cutting-edge medical devices, we sustain the highest echelons of quality standards.
- Semiconductors: We empower chip manufacturing and its associated equipment by delivering essential core components that are vital for driving the industry's success and innovation.
- New Energy: We are actively involved in the dynamic and sustainable advancement of pioneering energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying critical components that spur innovation within the automotive sector, thereby facilitating the evolution of smart and electric vehicles.
Main Products
- Our specialization in non-standard customized components extensively supports the medical, automation, semiconductor, and automotive industries, delivering unmatched precision and superior quality that sets industry benchmarks.
Why choose us
Core Advantages
- A Fleet of Excellence: The Pinnacle of Machining Mastery Our operations proudly showcase an extraordinary assortment of over 300 state-of-the-art machines. These renowned machines represent the epitome of precision engineering,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 that every project is delivered with excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. Our commitment to guaranteeing exceptional quality and forward-thinking innovation sets us apart as pioneers in the realm of precision engineering, driving us towards a future of limitless possibilities.
State-of-the-Art Production Equipment: Revolutionizing Precision Manufacturing
High-Precision Inspection Equipment: Ensuring Flawless Quality and Consistency
Quality Ensurance
Outstanding Incoming Material Inspection
Every raw material that enters our warehouse undergoes a comprehensive and rigorous examination. Our meticulous analysis includes a detailed evaluation of the chemical composition and an in-depth inspection of physical properties. We are unwavering in our commitment to quality, demanding that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that we utilize only the premium materials for our high-precision medical machining services. Our thorough authentication process guarantees that these materials adhere to the highest standards of integrity and purity, perfectly reflecting our unwavering dedication to quality.
Rigorous In-Process Quality Assurance
Amidst our intricate and precise machining operations, every component is meticulously examined to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our thorough and ongoing inspection protocol is strategically crafted to catch potential defects at an early stage, thereby halting non-conforming parts from advancing to subsequent phases. This vigilant strategy is crucial in reducing the risk of substandard goods, assuring superior quality at each production phase, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a fundamental strategy vital for detecting and resolving potential production challenges early on. This proactive measure prevents issues from escalating during mass production. The detailed and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This commitment to excellence is infused into every aspect of the production cycle, guaranteeing we consistently meet and surpass the highest quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product departs from our facility, it undergoes an exhaustive and thorough final inspection. This process meticulously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless dedication to quality, ensuring that every part leaving our facility meets our stringent standards. We remain committed to delivering only the highest quality products to our esteemed customers, maintaining our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its esteemed inception in 2009, with foundational roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has proudly emerged as a beacon of expertise in the realm of high-precision basic component machining. Our unwavering dedication to innovation over the past two decades has seen us delve deeply into technical research, establishing ourselves as pioneers and leaders in the art of precision engineering. We have accumulated an extensive wealth of technical expertise, earning a remarkable market reputation that distinctly sets us apart as an industry leader. Our unrivaled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and flawless surface finishes, positioning us as the preferred partner in the medical sector's demanding landscape.
With four strategically located production bases, situated in the vibrant hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly weaves together research and development, production, and delivery to ensure we consistently meet and exceed the diverse needs of our clients with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are equipped to handle the most intricate and demanding machining tasks, reinforcing 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)