Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate commitment beyond mere duty, fueled by an ardent passion for the art and science of precision manufacturing. Our dedication is a harmonious blend of creativity and expertise, crafting solutions that redefine excellence. In the realm of high-end component fabrication, our unparalleled expertise shines as a beacon, guiding the way to achieve meticulous precision. We are the architects of innovation, crafting components with unmatched accuracy and attention to detail. As visionaries in intelligent automation, we are at the forefront of developing groundbreaking equipment that revolutionizes industries. Our cutting-edge solutions are designed to address a wide array of applications, ensuring efficiency and innovation in sectors such as:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and innovative solutions tailored for state-of-the-art medical devices, consistently upholding the highest quality standards in the industry.
- Semiconductors: We empower chip production and related equipment by supplying crucial core components, essential for the industry's continuous success and technological advancement.
- New Energy: We are actively engaged in the dynamic progression of innovative energy equipment, championing sustainable and eco-friendly technological advances.
- Automotive: We provide vital components that drive innovation in the automotive sector, supporting the evolution of smart and electric vehicles with cutting-edge solutions.
Main Products
- Our specialization lies in non-standard customized components, serving the medical, automation, semiconductor, and automotive industries. We ensure precision and superior quality, setting new benchmarks for excellence in every product delivered.
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. Experience the flawless execution of complex tasks that meet the highest standards of modern industry demands.
- 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, setting us apart as pioneers in the realm of precision engineering. Our groundbreaking methodologies ensure that every product is crafted to perfection, leaving a lasting impact in the world of precision medical CNC machining.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Examination of Incoming Materials
Every raw material that graces our warehouse undergoes a comprehensive and meticulous examination process. Our meticulous analyses encompass an evaluation of the chemical composition and a thorough inspection of physical properties. We hold an unwavering dedication to quality by requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This guarantees that only the finest materials are chosen for our high-precision medical machining services. Our rigorous authentication process ensures that these materials uphold the highest standards of integrity and purity, aligning perfectly with our steadfast commitment to quality excellence.
Intensive In-Process Quality Assurance Protocols
Within our intricate and precise machining operations, each component is meticulously scrutinized to guarantee its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent, continuous inspection protocol is strategically crafted to detect potential defects early, preventing non-conforming parts from reaching subsequent phases. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at every production phase, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI) Initiative
Our First Article Inspection (FAI) process acts as a cornerstone strategy integral to identifying and resolving potential production challenges at an early stage. This proactive measure prevents issues from escalating into mass production problems. The exhaustive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and even surpass the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection Process
Before any product departs from our facility, it undergoes a meticulous and thorough final inspection. This process rigorously assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless dedication to quality, ensuring that every part dispatched from our facility meets our stringent standards. We remain steadfast in delivering only the highest 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 garnered an extensive wealth of technical expertise, earning a stellar market reputation that distinguishes us as a leader in the industry. Our capabilities in precision medical machining services are unparalleled, 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 seamlessly blends 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 designed to handle the most intricate and demanding machining tasks, cementing 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)