Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment is more than mere duty; it is an ardent passion for the elegant craftsmanship and the intricate science inherent in precision manufacturing. Our unparalleled expertise shines brightly in the realm of high-end component creation, serving as a beacon that guides the journey towards meticulous precision and unmatched quality. We stand at the forefront of innovation, leading the charge in the development and production of revolutionary intelligent automation equipment. Our advanced solutions are designed to meet the needs of a wide array of industries, offering versatile applications, including:
- Medical and Biotech: We deliver precision-engineered, high-quality components and innovative solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: We empower the semiconductor industry by supplying essential core components integral to chip production and its related equipment, driving the industry's success.
- New Energy: We are at the forefront of sustainable and dynamic advancement in innovative energy equipment, promoting eco-friendly technological progress.
- Automotive: We provide essential components that propel innovation in the automotive industry, supporting the development of smart and electric vehicles.
Our Main Product Offerings
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring exceptional precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned, top-tier machines, meticulously assembled to form a powerful fleet of engineering marvels., 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 executed with the utmost excellence and meticulous attention to detail.
- 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 sets us apart as pioneers in the realm of precision engineering, driving a legacy of excellence and groundbreaking advancements in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment, ensuring every product meets the most stringent quality standards before leaving our facilities.
Quality Ensurance
Remarkable Incoming Material Verification
Every raw material that enters our warehouse undergoes a comprehensive and detailed examination process. Our meticulous evaluations encompass an in-depth analysis of the chemical composition and a rigorous inspection of the physical characteristics. We steadfastly adhere to quality excellence by mandating that each supplier provides a Certificate of Origin in conjunction with a stamped Declaration of Conformity. This rigorous selection ensures that only the highest caliber materials are utilized in our precision-driven medical machining services. Our stringent authentication protocol guarantees that these materials not only meet but exceed the highest standards of integrity and purity, harmonizing flawlessly with our unwavering commitment to excellence.
Thorough In-Process Quality Assurance
Throughout our sophisticated and precise machining operations, every component is diligently scrutinized to confirm its dimensions and tolerances not only meet but surpass our rigorous specifications. Our continuous and vigilant inspection protocol is expertly designed to detect potential flaws at the earliest stage, thereby preventing non-conforming components from advancing to subsequent phases. This proactive strategy is critical in minimizing the possibility of inferior goods, ensuring top-tier quality at every phase of production, and preserving excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is an essential strategy pivotal for foreseeing and proactively addressing potential production challenges at the outset. This preemptive technique prevents issues from escalating into large-scale production. The detailed and precise nature of our FAI process is crucial in minimizing quality risks, assuring our products consistently elevate to the highest standards. This dedication to superior quality permeates every facet of the production cycle, ensuring that we consistently meet and exceed the most rigorous quality benchmarks.
Comprehensive Final Inspection with Precision
Before any product departs from our facility, it undergoes a meticulous and exhaustive final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any specific customer requirements. Our extensive inspection process stands as a testament to our relentless pursuit of quality, ensuring that every component dispatched from our facility adheres to our stringent standards. We are resolute in delivering only the highest quality products to our esteemed customers, reinforcing our reputation for excellence and dependability.
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 solidifies our status as leaders in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving incredibly tight tolerances and flawless 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 seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are adept at handling 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)