Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a duty; it is an ardent passion for the artful craftsmanship and the intricate science of precision manufacturing. Our unparalleled expertise shines brightly in the domain of high-caliber component fabrication, serving as a beacon that guides towards unparalleled precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions span a wide array of industries, skillfully addressing diverse applications, including:
- Medical and Biotech: Meticulously crafting high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Enhancing chip production and its related equipment by providing essential core components vital to industry success.
- New Energy: Actively contributing to the robust and sustainable growth of innovative energy equipment, advancing eco-friendly technology.
- Automotive: Supplying essential components that drive innovation within the automotive sector, supporting the progression of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and top-tier 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, ensuring that our solutions stand out in quality and reliability.
- 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 commitment to excellence sets us apart as pioneers in the realm of precision engineering, ensuring that our customers receive nothing but the best.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
As part of our elite quality assurance practices, each raw material that enters the warehouse is meticulously analyzed through an exhaustive and rigorous examination process. Our scrupulous assessments encompass a thorough evaluation of the chemical composition and an in-depth inspection of its physical attributes. We maintain an unwavering dedication to quality by requiring every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring only top-tier materials are selected for our high-precision medical machining services. Our stringent authentication protocols certify that these materials embody the pinnacle of integrity and purity, perfectly mirroring our commitment to unparalleled quality.
Intensive In-Process Quality Assurance
Within our sophisticated and exacting machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection protocol is meticulously crafted to detect potential defects early, preventing non-conforming parts from advancing through the production stages. This vigilant methodology is crucial in mitigating the risk of substandard goods, ensuring superior quality at every phase of production, and maintaining industry-leading excellence throughout our entire manufacturing process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a strategic cornerstone, vital for identifying and resolving potential production challenges before they can escalate into larger issues in mass production. This proactive methodology is instrumental in significantly reducing quality risks, ensuring our products consistently achieve the highest standards of excellence. This unwavering dedication to superior quality infuses every phase of our production cycle, allowing us to meet and exceed the highest quality benchmarks with every product we create.
Meticulous Comprehensive Final Inspection
Before any product departs our facility, it endures a meticulous and exhaustive final inspection. This robust process rigorously assesses dimensions, visual appearance, performance, and specific customer requirements. Our comprehensive inspection procedure is a testament to our relentless pursuit of quality, ensuring that every component dispatched from our facility meets our exacting standards. We are devoted to delivering only the highest quality products to our esteemed customers, continuously upholding 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 triumphantly as a bastion of expertise in the realm of 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 the realm of precision engineering. Our journey has been marked by relentless pursuit of excellence, transforming challenges into opportunities for groundbreaking innovation. We have amassed a wealth of unparalleled technical expertise, earning a stellar market reputation that sets us apart as a distinguished leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes. This expertise positions us as the preferred choice in the medical sector, where precision and quality are paramount.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, driven by a dedicated workforce of over 400 highly skilled employees, Donghui has masterfully crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our valued customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, upholding 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)