Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embrace an unwavering commitment that transcends mere duty. Our work is fueled by an intense passion for the exquisite art and intricate science of precision manufacturing. Our unparalleled expertise lights the way in the field of premium component fabrication, setting the standard for meticulous accuracy. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide range of industries, meeting diverse application needs, including:
- Medical and Biotech: We deliver meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, consistently maintaining the highest quality standards.
- Semiconductors: We empower chip manufacturing and its related equipment by providing essential core components critical to industry success.
- New Energy: We actively participate in the robust and sustainable progress of innovative energy equipment, advancing eco-friendly technological advancements.
- Automotive: We supply vital components that drive innovation in the automotive sector, supporting the advancement of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched 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, empowering us to expertly handle a wide range of equipment categories. This robust capability allows us to adeptly meet the complex machining demands of various industries with unmatched precision and efficiency.
- 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Inspection Protocol
Every single raw material entering our well-managed warehouse is subject to an exhaustive and stringent examination process. Our meticulous assessment involves a rigorous evaluation of the chemical makeup and a comprehensive inspection of the physical properties. We uphold an unwavering commitment to quality by requiring each and every supplier to furnish a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous criterion ensures that only the finest materials are handpicked for our high-precision medical machining services. Our thorough authentication process guarantees that these materials align with the highest standards of integrity and purity, perfectly reflecting our unwavering dedication to quality excellence.
Thorough and Intensive In-Process Quality Assurance
Within our intricate and precise machining operations, every single component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent, continuous inspection protocol is strategically designed to intercept any potential defects early on, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is key in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining excellence throughout the entire manufacturing process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a cornerstone strategy that is crucial for identifying and rectifying potential production challenges at an early stage. This proactive approach effectively prevents issues from escalating into mass production hurdles. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, guaranteeing our products consistently achieve the pinnacle of standards. This dedication to excellence permeates every facet of the production cycle, ensuring that we consistently meet and exceed the highest quality benchmarks.
Meticulous and Thorough Comprehensive Final Inspection
Before any product leaves our meticulously managed facility, it undergoes a comprehensive and thorough final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility adheres to our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, upholding our esteemed 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 that empowers us to consistently achieve excellence. Our stellar market reputation distinguishes us as industry leaders in precision medical machining services. Our capabilities are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes. This dedication makes us the unrivaled choice in the medical sector, where precision is paramount.
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 seamless integration of research and development, production, and delivery ensures that we not only meet but exceed the diverse needs of our customers. Our state-of-the-art facilities are capable of handling the most intricate and demanding machining tasks, supporting our unwavering commitment to 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)