Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a duty; it is a passionate pursuit infused with an ardor for the exquisite artistry and meticulous science that defines precision manufacturing. Our unparalleled expertise shines brilliantly in the realm of high-end component fabrication, charting a course toward impeccable precision and innovative design. We are at the forefront of developing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions span a variety of industries, adeptly addressing diverse applications, including:
- Medical and Biotech: Crafting meticulously engineered high-precision components and pioneering solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Fueling the chip production industry with essential core components, vital to its success and advancement, ensuring seamless integration and performance.
- New Energy: Spearheading the dynamic and sustainable development of innovative energy equipment, championing eco-friendly technological progression.
- Automotive: Delivering indispensable components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles with unmatched precision.
Main Products
- We excel in creating non-standard customized components, extensively serving sectors like medical, automation, semiconductor, and automotive industries, guaranteeing unparalleled precision and superior 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. Our expertise ensures that each piece is crafted with meticulous care, meeting the highest standards expected in today's competitive market.
- 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 dedication to excellence sets us apart as pioneers in the realm of precision engineering, ensuring that every project we undertake is elevated to a new level of perfection.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Assessment
Every piece of raw material that enters our warehouse is subjected to a thorough and rigorous examination process. Our comprehensive analyses include assessing the chemical composition and conducting an in-depth inspection of the physical properties. We maintain an unwavering dedication to quality by obligating every supplier to present a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the highest quality materials are chosen for use in our cutting-edge medical machining services. Our stringent verification process ensures these materials adhere to the most stringent standards of integrity and purity, perfectly aligning with our unwavering commitment to excellence.
Robust In-Process Quality Assurance
In our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is strategically designed to intercept potential defects early, thus preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is instrumental in minimizing the risk of inferior goods, ensuring superior quality at each production phase, and maintaining excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is a cornerstone strategy essential for identifying and addressing potential production challenges at an early stage. This proactive approach thwarts issues from escalating into mass production concerns. The detailed and exact nature of our FAI process is pivotal in reducing quality risks, ensuring our products consistently reach the pinnacle of standards. This dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and exceed the highest quality thresholds.
Thorough and Comprehensive Final Inspection
Before any product exits our facility, it undergoes a detailed and comprehensive final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our exhaustive inspection process is a testament to our relentless dedication to quality, ensuring that every part dispatched from our facility meets our stringent standards. We are steadfast in delivering only the finest quality products to our esteemed customers, 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 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 sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable 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 effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle 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)