Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment to excellence is more than a mere duty; it is a fervent passion that fuels our devotion to the intricate artistry and rigorous precision of advanced manufacturing. Our unparalleled expertise shines brightly in the world of high-end component fabrication, guiding us towards the zenith of meticulous precision. We are at the forefront of innovation, designing and producing groundbreaking intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively meeting diverse needs and applications, including:
- Medical and Biotech: Offering meticulously engineered high-precision components and forward-thinking solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Enabling chip production and its related equipment by providing essential core components that are vital for the industry's advancement.
- New Energy: Contributing to the vigorous and sustainable progress of pioneering energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, facilitating the evolution of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 world-renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to expertly fulfill the intricate machining needs of diverse industries with unrivaled precision and efficiency, ensuring each project meets the highest standards of excellence.
- With a rich history spanning two decades, we harness substantial production experience combined with significant technical and process expertise, ensuring exceptional quality and forward-thinking innovation. This commitment elevates us as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material entering our state-of-the-art warehouse undergoes an exhaustive and unwavering examination process, ensuring only top-tier quality is maintained. Our comprehensive analysis rigorously evaluates the chemical composition and delves into a meticulous inspection of the physical properties. To uphold our unparalleled commitment to superior quality, we require every supplier to present a Certificate of Origin along with a stamped Declaration of Conformity. This sophisticated verification process guarantees that only the finest materials are selected for use in our high-precision medical CNC machining services. Our rigorous authentication ensures these materials align perfectly with the highest standards of integrity and purity, embodying our steadfast dedication to quality excellence.
Intensive In-Process Quality Assurance
In the realm of our intricate machining operations, every component is subjected to meticulous scrutiny, ensuring dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent, ongoing inspection protocol is ingeniously designed to identify potential defects at the earliest opportunity, effectively preventing non-conforming parts from advancing further. This vigilant oversight is crucial in reducing the risk of substandard products, securing superior quality at each production phase, and maintaining exceptional standards throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy essential for proactively identifying and resolving potential production challenges early on, preventing issues from escalating as production scales up. The comprehensive and precise nature of our FAI process is essential in mitigating quality risks, ensuring our products consistently meet the pinnacle of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we consistently attain and even exceed the most rigorous quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product embarks on its journey from our cutting-edge facility, it undergoes a meticulous and exhaustive final inspection. This process thoroughly assesses dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection process is a testament to our relentless pursuit of quality, ensuring that every part dispatched from our facility adheres to our exacting standards. We are unwavering in delivering only the highest quality products to our esteemed customers, cementing 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 evolved into a beacon of expertise in the realm of high-precision basic component machining. With an unwavering commitment to groundbreaking innovation over the past two decades, we have delved deeply into technical research, establishing ourselves as pioneers in the sphere of precision engineering. We have amassed a treasure trove of technical expertise, earning a stellar reputation in the market that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving incredibly tight tolerances and impeccable surface finishes. This makes us the preferred choice in the medical sector, where precision and quality are paramount.
With four strategically located production bases in the vibrant hubs of Shenzhen and Guiyang, driven by a dedicated workforce of over 400 skilled employees, Donghui has crafted a formidable and vertically integrated industry chain. This innovative chain seamlessly weaves together research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with outstanding efficiency and exceptional quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, continually maintaining 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)