Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment goes beyond mere responsibility; it is driven by a fervent passion for the exquisite artistry and meticulous science of precision manufacturing. Our unparalleled expertise serves as a beacon in the realm of high-end component fabrication, guiding us towards the pinnacle of meticulous precision and excellence. We are at the forefront of pioneering the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a myriad of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and innovative technologies for cutting-edge medical devices, continuously upholding the highest standards of quality.
- Semiconductors: Empowering the production of chips and related equipment by providing indispensable core components essential for the industry's success and advancement.
- New Energy: Actively engaging in the robust and sustainable development of pioneering energy equipment, propelling eco-friendly technological progress.
- Automotive: Supplying critical components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, consistently 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, 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 expertise combined with immense technical and process acumen. This guarantees not only exceptional quality and forward-thinking innovation but also distinguishes us as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulously Detailed Incoming Material Examination
Every raw material that enters our warehouse undergoes a comprehensive and rigorous examination process designed to ensure impeccable quality. We delve deep into the material's chemical composition and perform an extensive inspection of its physical attributes. Our unwavering dedication to quality mandates that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This critical measure ensures that only the highest caliber materials are chosen for our precision medical machining services. Our stringent authentication process safeguards the integrity and purity of these materials, ensuring they meet and often exceed the most demanding standards, reflecting our relentless commitment to excellence.
Rigorous In-Process Quality Assurance
Throughout our highly detailed machining operations, each component undergoes meticulous scrutiny to guarantee that dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent inspection protocol is strategically implemented to detect and address potential defects at the earliest stages, effectively preventing non-conforming parts from advancing further in the process. This vigilant strategy is crucial in significantly reducing the risk of inferior products, ensuring exceptional quality at every production phase, and consistently upholding our standard of excellence.
Strategically Executed First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, vital for identifying and addressing production challenges at the inception stage. This proactive measure is instrumental in averting issues from proliferating during mass production. The thoroughness and precision of our FAI process are critical in mitigating quality risks, ensuring our products consistently achieve the zenith of industry standards. This unwavering commitment to excellence is woven into every production phase, guaranteeing that we not only meet but consistently exceed the most stringent quality benchmarks.
Thorough and Exhaustive Final Inspection
Every product dispatched from our facility is subjected to an exhaustive and meticulous final inspection. This rigorous process assesses dimensions, aesthetic appeal, performance, and any specific customer requirements. Our all-encompassing inspection regimen is a testament to our unyielding dedication to quality, ensuring that each component we deliver meets our demanding standards. We are unwavering in our resolve to deliver only the utmost quality products to our esteemed customers, thereby reinforcing our 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 emerged as a bastion of unparalleled expertise in high-precision basic component machining. With an unwavering dedication to relentless innovation over the past two decades, we have delved deep into pioneering technical research, establishing ourselves as trailblazers in the realm of precision engineering. We have amassed a remarkable wealth of technical expertise, earning an illustrious market reputation that distinguishes us as an undisputed leader in the industry. Our cutting-edge capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice and trusted partner in the medical sector.
With four strategically located production bases in the bustling industrial hubs of Shenzhen and Guiyang, powered by an impressive and dedicated workforce of over 400 exceptionally skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This seamless chain effortlessly weaves together advanced research and development, meticulous production, and efficient delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled, superior quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our esteemed 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)