Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond mere duty; it is fueled by an unwavering zeal for the art and exacting science of precision manufacturing. Our unparalleled proficiency serves as a beacon in the sphere of high-end component manufacturing, shedding light on the journey towards impeccable precision. We are at the forefront of innovation in the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to meet the needs of a myriad of industries, effectively fulfilling diverse applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and breakthrough solutions for cutting-edge medical devices, steadfastly upholding the highest quality standards.
- Semiconductors: Fortifying chip production and its related machinery by delivering essential core components that are vital to the industry's progress.
- New Energy: Contributing to the robust and sustainable progress of innovative energy equipment, advancing eco-friendly technological innovation.
- Automotive: Supplying essential components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in non-standard customized components, extensively servicing the medical, automation, semiconductor, and automotive industries, ensuring exceptional precision and top-tier quality.
Why choose us
Core Advantages
- A Fleet of Excellence Unleashed Our operations proudly showcase an extraordinary assortment of over 300 renowned machines.This formidable lineup allows us to address a comprehensive spectrum of equipment categories with mastery and finesse. Our capabilities enable us to fulfill the intricate machining needs of diverse industries, delivering unmatched precision and efficiency that truly sets us apart.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, distinguishing 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 that crosses the threshold into our warehouse is not just another item on a checklist; it's a cornerstone of our promise of excellence. Each entry undergoes an exhaustive, uncompromising examination process that scrutinizes every detail. Our analyses are thorough, assessing chemical compositions and performing a comprehensive physical property inspection. We demand Certificates of Origin and stamped Declarations of Conformity from all suppliers, ensuring only premier materials are chosen for our high-precision medical machining services. This rigorous authentication process is not just about meeting standards; it's about surpassing them. By maintaining the utmost integrity and purity, we align with our unwavering commitment to delivering unparalleled quality.
Intensive In-Process Quality Assurance
In the realm of precise machining, every component is not merely checked but meticulously scrutinized to ensure each dimension and tolerance doesn't just meet, but surpasses, our stringent specifications. Our continuous inspection protocol is a sophisticated strategy designed to catch potential defects in their infancy, halting them before they can affect later stages of production. This vigilant, proactive approach is crucial to minimizing the risks of substandard goods, ensuring that superior quality isn't just a goal but a consistent reality throughout the production journey.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a strategic pillar crucial for the early identification and resolution of potential production challenges. This forward-thinking approach prevents complications from snowballing into full-scale production issues. The thoroughness and precision of our FAI process are vital in minimizing quality risks, ensuring our products not only meet but consistently soar to the zenith of industry standards. This commitment to excellence permeates every facet of the production cycle, ensuring we not only meet but exceed the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before a product makes its journey from our facility, it must pass through a final inspection of meticulous thoroughness. This rigorous evaluation checks dimensions, visual appearance, and performance, meeting every customer-specific requirement. Our comprehensive inspection process is more than a promise; it's a testament to our relentless dedication to quality. Every part that leaves our premises adheres to our stringent standards, reinforcing our reputation for excellence and reliability. We are unwavering in our commitment to deliver only the finest products to our valued customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, and tracing its pioneering roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has proudly risen as a beacon of expertise in the realm of high-precision basic component machining. With an unwavering commitment to cutting-edge innovation spanning over two remarkable decades, we have immersed ourselves in profound technical research, firmly establishing our stature as trailblazers in the field of precision engineering. We have accumulated a vast reservoir of technical expertise, securing a prestigious market reputation that distinguishes us as a commanding leader within the industry. Our unparalleled proficiency in precision medical machining services consistently delivers incredibly precise tolerances and flawless surface finishes, rendering us the go-to choice within the demanding medical sector.
With four strategically located production bases in the vibrant and bustling hubs of Shenzhen and Guiyang, propelled by a dedicated team of over 400 skilled employees, Donghui has masterfully crafted a robust and vertically integrated industry chain. This meticulously structured chain seamlessly integrates research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse and dynamic needs of our esteemed customers with outstanding efficiency and unmatched quality. Our cutting-edge facilities are meticulously equipped to tackle the most intricate and demanding machining tasks, upholding our reputation for excellence and pioneering 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)