Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication goes beyond mere commitment; it is fueled by an ardent passion for the art and science of precision manufacturing, where craftsmanship meets innovation with unrivaled expertise. Our unparalleled mastery in precision component fabrication shines brightly, guiding the industry towards elevated precision and setting new benchmarks for excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to meet a diverse range of industrial needs, addressing multiple applications with finesse, including:
- Medical and Biotech: Crafting meticulously engineered, high-precision components and innovative solutions for cutting-edge medical devices, ensuring they meet the highest quality standards and push the boundaries of modern healthcare.
- Semiconductors: Bolstering chip production and related equipment by providing essential core components, vital for driving the success and advancement of the semiconductor industry.
- New Energy: Leading the charge in the sustainable development of pioneering energy equipment, championing eco-friendly technological innovations that pave the way for a greener future.
- Automotive: Supplying crucial components that propel advancements in the automotive industry, supporting the transformative growth of smart and electric vehicles.
Main Products
- We excel in the creation of non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, delivering exceptional precision and outstanding 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.
- With a rich and illustrious history spanning two decades, we harness vast production experience, blending substantial technical acumen with cutting-edge process prowess. This synergy guarantees exceptional quality and forward-thinking innovation, positioning us as unrivaled pioneers in the realm of precision engineering excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptionally Thorough Incoming Material Examination
Every piece of raw material that enters our esteemed warehouse undergoes an exhaustive and rigorous examination. Our comprehensive analyses are unmatched, considering both the intricate chemical composition and a detailed evaluation of physical properties. To ensure that we maintain our uncompromising dedication to quality, we mandate that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This diligent process ensures that only the finest materials are chosen for our precision medical machining services. Through our strict verification procedures, we guarantee that these materials meet the pinnacle of standards for integrity and purity, perfectly reflecting our unwavering commitment to quality excellence.
Rigorous In-Process Quality Assurance
During our sophisticated machining operations, each component is subject to meticulous scrutiny to ascertain that its dimensions and tolerances not only meet but exceed our stringent specifications. Our persistent inspection protocol is strategically engineered to identify potential defects at an early stage, effectively preventing non-conforming parts from advancing into subsequent stages. This vigilant approach is vital in minimizing the risk of inferior goods, ensuring unparalleled quality at every phase of production, and sustaining excellence throughout the entire manufacturing journey.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone of our quality assurance strategy, instrumental in pinpointing and addressing potential production challenges right from the start. This foresight prevents issues from escalating into mass production. The comprehensive and exact nature of our FAI process is crucial in mitigating quality risks, ensuring our products consistently reach the highest levels of excellence. This dedication to superiority permeates every facet of our production cycle, ensuring that we continually meet and surpass the most stringent quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product is dispatched from our facility, it undergoes a meticulous and exhaustive final inspection. This rigorous process evaluates every aspect, including dimensions, visual appearance, performance, and any customer-specific requirements. Our detailed inspection process is a testament to our relentless pursuit of quality, ensuring that every component leaving our facility meets our rigorous standards. We are unwavering in our commitment to delivering only the highest quality products to our valued customers, upholding our esteemed 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 blossomed into a forefront authority 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 elevates us as an unrivaled leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving remarkably tight tolerances and flawless surface finishes, making us the preferred choice within the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, driven by a dedicated workforce of over 400 skilled employees, Donghui has sculpted a robust and vertically integrated industry chain. This chain masterfully intertwines research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, maintaining 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)