Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we elevate dedication beyond mere duty; it is a passionate devotion to the art and intricate science of precision manufacturing that defines us. Our unparalleled expertise acts as a beacon in the elite sphere of component fabrication, guiding the way with pinpoint accuracy and meticulous precision. We are at the forefront in creating and advancing extraordinary intelligent automation equipment. Our avant-garde solutions serve a vast array of industries, skillfully meeting various applications, including:
- Medical and Biotech: Delivering impeccably crafted high-precision components and cutting-edge solutions for the most advanced medical devices, ensuring the highest standards of excellence.
- Semiconductors: Propelling chip manufacturing and its essential machinery by providing vital core components that are indispensable to the industry's groundbreaking success.
- New Energy: Committed to the dynamic and sustainable development of pioneering energy equipment, driving forward environmentally-friendly technological innovation.
- Automotive: Supplying crucial components that spearhead innovation within the automotive realm, supporting the evolution of intelligent and electric vehicles.
Main Products
- We are experts in non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, guaranteeing unrivaled precision and premium 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 remarkable capability empowers us to adeptly fulfill the intricate machining needs of diverse industries with unmatched precision and outstanding efficiency. Our commitment to excellence ensures that each piece of equipment operates at peak performance, facilitating seamless production and consistent quality.
- With a rich history spanning two decades, we leverage extensive production experience combined with substantial technical and process prowess. This synergy guarantees exceptional quality and forward-thinking innovation, firmly establishing us as pioneers in the realm of precision engineering. Our dedication to pushing the boundaries of what is possible in precision machining continuously sets us apart in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Verification
Every piece of raw material entering the sanctum of our warehouse undergoes a scrupulous and rigorous examination process. This includes a meticulous evaluation of its chemical composition alongside an exhaustive inspection of its physical properties. We are fiercely dedicated to maintaining our high standards of quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the crème de la crème of materials is deemed fit for our high-precision medical machining services. Our thorough authentication process certifies that these materials stand up to the loftiest standards of integrity and purity, resonating with our unwavering fidelity to excellence.
Meticulous In-Process Quality Assurance Execution
Within our sophisticated and finely-tuned machining operations, each component is subjected to meticulous scrutiny to ensure that its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent and ongoing inspection protocol is ingeniously crafted to detect potential defects at an early stage, thereby averting non-compliant parts from advancing to successive phases. This vigilant strategy is crucial in mitigating the risk of subpar goods, ensuring impeccable quality at each juncture of production, and sustaining our commitment to excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is a cornerstone strategy pivotal for identifying and addressing potential production challenges at the earliest possible moment. This forward-thinking methodology prevents these challenges from blossoming into full-blown mass production issues. The meticulous and precise nature of our FAI process is instrumental in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This relentless pursuit of excellence permeates every facet of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Comprehensive and Detailed Final Product Inspection
Before any product departs our esteemed facility, it is subjected to a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual aesthetics, performance, and any specific customer requirements. Our comprehensive inspection process stands as a testament to our unyielding dedication to quality, ensuring that every part leaving our facility adheres to our exacting standards. We remain resolute in delivering only the finest quality products to our esteemed customers, reinforcing 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, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, 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 effortlessly weaves together 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 equipped to handle the most intricate and demanding machining tasks, 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)