Product application
At the forefront of precision manufacturing, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is more than just a company; it's a beacon of artistry and scientific excellence. Our fervent passion drives us to perfect the intricate art of precise component creation, blending craftsmanship with cutting-edge technology. Harnessing unrivaled expertise, we illuminate the industry of high-end component fabrication, leading the charge towards unparalleled precision and craftsmanship in every creation. Pioneers of Innovation: We are at the vanguard of developing and producing revolutionary intelligent automation equipment. Our avant-garde solutions span a vast array of industries, expertly tackling a spectrum of applications such as:
- Medical and Biotech Industry: Elevating the realm of medical technology with our exquisitely engineered high-precision components and revolutionary solutions, setting the bar for the highest quality standards.
- Semiconductor Industry: Providing essential core components that drive success in chip production and its associated equipment, we empower the industry with our indispensable contributions.
- New Energy Sector: Leading the charge in the sustainable and groundbreaking development of advanced energy equipment, propelling eco-conscious technological advancements.
- Automotive Industry: Supplying critical components that energize innovation in the automotive world, we actively support the evolution of smart and electric vehicle technology.
Main Products: Crafting Excellence Across Industries
- Our specialty lies in producing non-standard customized components, expertly catering to the medical, automation, semiconductor, and automotive industries. We ensure precision without compromise, delivering superior quality that stands unmatched.
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 navigate and masterfully address a comprehensive spectrum of equipment categories. This remarkable capability empowers us to skillfully fulfill the intricate and diverse machining needs of a multitude of industries with unparalleled precision, efficiency, and excellence.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees not only exceptional quality but also forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Examination
Every single raw material entering our state-of-the-art warehouse is subjected to a thorough and detailed examination process. Our meticulous evaluations encompass a comprehensive analysis of the chemical composition, paired with an in-depth assessment of the physical properties. We maintain an unwavering dedication to ensuring quality by mandating that each supplier provides a Certificate of Origin and a verified Declaration of Conformity. This strict protocol guarantees that only the finest materials are chosen for our high-precision medical machining services. Our rigorous authentication procedures certify that these materials uphold the highest standards of integrity and purity, perfectly reflecting our relentless commitment to quality.
Rigorous In-Process Quality Assurance
In the realm of our intricate and precise machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our continuous and diligent inspection protocol is strategically crafted to detect potential defects at the earliest possible stage, thus preventing non-conforming parts from advancing to subsequent phases. This vigilant approach is crucial in minimizing the risk of substandard products, guaranteeing superior quality at each production stage, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is an essential strategic initiative, vital for identifying and resolving potential production challenges early on. This proactive approach prevents issues from developing into mass production dilemmas. The comprehensive and precise nature of our FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the highest standards of excellence. This steadfast dedication to quality permeates every facet of the production cycle, ensuring that we not only meet but exceed the most rigorous quality benchmarks.
Thorough and Meticulous Final Inspection
Before any product departs from our facility, it undergoes an exhaustive and detailed final inspection. This rigorous process evaluates dimensions, visual appearance, performance, as well as any specific customer requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring each and every part dispatched from our facility aligns with our exacting standards. We are unwavering in our mission to deliver only the highest quality products to our valued customers, thereby upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon its foundational roots formed in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of expertise in the realm of high-precision basic component machining. With a steadfast commitment to innovation over the past two decades, we have immersed ourselves in comprehensive technical research, positioning ourselves as pioneering leaders in precision engineering. We have cultivated a wealth of technical expertise, establishing a distinguished market reputation that distinguishes us as industry leaders. Our unmatched capabilities in precision medical machining services consistently deliver exceptionally tight tolerances and flawless surface finishes, making us the top choice in the medical sector.
With four strategically located production bases in the vibrant hubs of Shenzhen and Guiyang, powered by an enthusiastic and devoted workforce of over 400 highly skilled employees, Donghui has constructed a robust and vertically integrated industrial chain. This seamless chain interlaces research and development, production, and delivery, ensuring we not only meet but exceed the diverse needs of our customers with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are equipped to handle the most intricate and demanding machining tasks, sustaining 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)