Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are steadfast in our commitment-a journey fueled by an unparalleled zeal for the artistry and intricate science behind precision manufacturing. Our pursuit is not just a duty but a passion for excellence. Our unsurpassed expertise is a beacon in the high-end component fabrication industry, lighting the way to the pinnacle of precision and meticulous craft. We are trailblazers in the creation and advancement of revolutionary intelligent automation equipment. Our state-of-the-art solutions span an array of industries, addressing a diverse range of applications, including:
- Medical and Biotech: Providing precision-engineered components and breakthrough solutions for cutting-edge medical devices, ensuring that we uphold the highest standards of quality and innovation.
- Semiconductors: Enabling the production of microchips and related equipment with essential core components, vital for the industry's groundbreaking achievements.
- New Energy: Actively participating in the robust advancement of innovative energy solutions, driving forward eco-conscious technological development.
- Automotive: Supplying crucial components that catalyze innovation within the automotive industry, supporting the development of smart and electric vehicles.
Main Products
- We are leaders in crafting bespoke, non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched 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 expertly address a vast array of equipment categories. This remarkable capability empowers us to adeptly cater to the intricate machining requirements of various industries with unmatched precision and efficiency.
- With a distinguished history spanning two decades, we harness vast production experience paired with significant technical and process expertise. This ensures exceptional quality and forward-thinking innovation, distinguishing us as trailblazers in the sphere of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Assessment
Every piece of raw material that enters our warehouse undergoes an exhaustive examination, ensuring only the highest quality resources are selected for our precision medical machining. From detailed chemical analyses to scrupulous inspections of physical properties, we maintain an unwavering dedication to excellence. Each supplier is required to provide comprehensive certifications, such as a Certificate of Origin and a stamped Declaration of Conformity, thereby affirming the integrity and purity of their materials. Our meticulous authentication protocols ensure that these materials exceed the highest industry standards, perfectly aligning with our steadfast commitment to quality.
Intensive In-Process Quality Oversight
Throughout our intricate machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocols are expertly designed to identify and eliminate potential defects at the earliest stages, preventing non-conforming parts from advancing further. This vigilant approach is essential in mitigating risks of substandard goods, ensuring superior quality at every phase, and maintaining unparalleled excellence across the entire production process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone strategy, instrumental in preemptively identifying and addressing potential production challenges. This proactive approach prevents issues from escalating into mass production. The precision and thoroughness of our FAI process are critical in reducing quality risks and guaranteeing that our products consistently achieve the apex of standards. Our unwavering dedication to excellence is infused into every step of the production cycle, ensuring we not only meet but exceed quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product leaves our facility, it is subjected to a meticulous final inspection, encompassing dimensions, visual appearance, performance, and any specific customer requirements. This comprehensive inspection is a testament to our relentless pursuit of quality, ensuring that every component dispatched from our facility adheres to our rigorous standards. We remain steadfast in delivering only the highest quality products to our valued clientele, reinforcing 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 as a beacon of precision engineering excellence. Over the past two decades, our unwavering commitment to innovation has propelled us to the forefront of high-precision component machining. With a deep dive into technical research, we have firmly established ourselves as trailblazers in the field. With our extensive reservoir of technical expertise, we have carved out an enviable reputation in the market, distinguishing ourselves as a preeminent leader in the industry. Our unparalleled capabilities in precision medical machining services consistently deliver ultra-tight tolerances and flawless surface finishes, making us the go-to partner in the medical sector.
With four strategically located production bases in the thriving centers of Shenzhen and Guiyang, bolstered by an outstanding team of over 400 skilled professionals, Donghui has constructed a powerful and vertically integrated industry chain. This chain seamlessly links research and development, production, and delivery, ensuring that we exceed the diverse expectations of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are expertly equipped to tackle the most intricate and challenging machining tasks, solidifying our reputation for excellence and pioneering 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)