Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty; it is fueled by an unwavering passion for the intricate art and science of manufacturing. Our expertise is a beacon of precision, illuminating the realm of high-end component fabrication. We are at the forefront of innovation, leading the way in the development and manufacture of state-of-the-art intelligent automation equipment. Our pioneering solutions cater to a diverse array of industries, encompassing a wide range of applications, including:
- Medical and Biotech: Providing high-precision components and innovative solutions for medical devices.
- Semiconductors: Supporting chip manufacturing and related equipment with core components.
- New Energy: Contributing to the efficient and sustainable development of new energy equipment.
- Automotive: Providing critical components to drive innovation in the automotive industry, including intelligent and electric vehicle development.
Main Products
- Non-standard customized components, widely serving the medical, automation, semiconductor, and automotive industries.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations boast an impressive collection of over 300 branded machines, ensuring we cover a vast array of equipment categories. This allows us to adeptly meet the diverse machining requirements across numerous industries with precision and efficiency.
- With a legacy spanning 20 years, we bring a wealth of production experience, coupled with significant technical and process advantages, ensuring top-notch quality and innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Incoming Material Inspection
Raw materials destined for our warehouse undergo an uncompromising series of evaluations, including detailed chemical composition analysis and rigorous physical property testing. Our unwavering commitment to excellence mandates that suppliers provide a Certificate of Origin for each material, accompanied by a stamped Declaration of Conformity. This thorough authentication process ensures that only materials of the highest integrity and purity are utilized in our precision medical machining services.
In-Process Quality Control
Throughout the machining journey, each component is subject to an exacting examination to ensure its dimensions and tolerances adhere to stringent specifications. Our diligent, ongoing inspection protocol is a proactive measure designed to intercept and prevent defects, safeguarding against the progression of non-conforming parts to subsequent stages, and thus minimizing the risk of producing substantial quantities of inferior goods.
First Article Inspection (FAI)
Our First Article Inspection (FAI) represents a foundational strategy aimed at identifying and resolving potential production issues at the outset, averting any escalation to mass production phases and thereby minimizing unnecessary waste. This robust, highly accurate FAI procedure is critical in mitigating quality risks, unwaveringly ensuring that our products consistently uphold the highest standards of excellence.
Comprehensive Final Inspection
Before any of our products make their way to your doorstep, they undergo a meticulous final inspection that rigorously evaluates dimensions, visual appearance, performance, and any specific customer-specified criteria. This all-encompassing inspection guarantees that each part dispatched aligns with our stringent standards, ensuring that only products of the utmost quality are delivered to our valued customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has dedicated itself to the art and science of high-precision basic component machining. With an unwavering commitment 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 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 seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and 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)
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