Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we unveil an unwavering dedication to the pursuit of perfection, where the confluence of meticulous craftsmanship and intricate scientific processes fuels our journey to manufacturing brilliance. Our unrivaled proficiency lights the way to precision, guiding us through the distinguished domain of elite component manufacturing with extraordinary adeptness. As trailblazers in innovation, we redefine standards by crafting and delivering revolutionary intelligent automation equipment. Our avant-garde solutions seamlessly integrate across a diverse array of industries, meeting multifaceted demands in numerous applications, such as:
- Medical and Biotech: Delivering meticulously engineered, ultra-precise components and visionary solutions, tailored for the forefront of medical device innovation.
- Semiconductors: Enhancing chip production and its accompanying equipment with vital components that are essential and irreplaceable.
- New Energy: Playing a pivotal role in the progressive, eco-friendly evolution of cutting-edge energy equipment.
- Automotive: Providing indispensable components that drive innovation in the automotive industry, fostering the progression of smart and electric vehicles.
Main Products
- Created with precision, our bespoke non-standard components are crafted to serve pivotal sectors such as medical, automation, semiconductor, and automotive with unmatched excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations showcase an extraordinary fleet of over 300 of the industry's most advanced machinery units, setting us apart with an extensive and diverse array of equipment categories. This expansive collection empowers us to maintain our leadership in innovation and adaptability, consistently providing state-of-the-art solutions. These Top-Tier Branded machinery units form the backbone of our precision-centric manufacturing. With our high-caliber machines, we masterfully fulfill intricate and demanding machining requirements across diverse industries with exceptional precision and efficiency. Our comprehensive capabilities ensure unwavering adherence to the highest quality standards while offering bespoke customization, meticulously tailored to the unique needs of our valued clients.
- With a distinguished 20-year legacy, we integrate a wealth of manufacturing experience with extensive technical expertise and process strengths, ensuring superior quality and groundbreaking innovation. This enduring expertise allows us to consistently deliver extraordinary products that surpass expectations and set new benchmarks in the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulously Precise Incoming Material Inspection: Our commitment to exceeding industry standards is unwavering, as we employ unmatched precision.
Each piece of raw material entering our secure facility undergoes a thorough and unrivaled assessment, establishing a gold standard in quality assurance. Our detailed process includes an in-depth chemical composition analysis alongside a comprehensive examination of physical properties. Our commitment to excellence demands that every supplier presents a Certificate of Origin and a stamped Declaration of Conformity, ensuring only top-tier materials are incorporated into our advanced medical machining services. This rigorous validation process guarantees material integrity and purity, seamlessly aligning with our steadfast dedication to superior standards.
Rigorous In-Process Quality Control: Our unwavering vigilance and precision in detail fuel our relentless pursuit of perfection.
During the intricate machining process, each component is meticulously inspected to ensure dimensions and tolerances align perfectly with our exacting specifications. This ongoing inspection protocol is crucial in proactively identifying and intercepting any potential defects, thereby preventing non-conformities from advancing. Through this vigilant approach, we significantly reduce the risk of substandard products, ensuring that superior quality is consistently maintained throughout every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of unparalleled excellence and precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production issues from the outset. This proactive approach ensures that challenges are contained before they escalate into major production concerns. This comprehensive FAI process is critical in minimizing quality risks and ensuring our products reach the highest standards, reflecting our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unmatched quality and precision.
Before any product departs our facility, it undergoes a comprehensive final inspection. This rigorous evaluation covers dimensions, visual appearance, and performance, along with customer-specific requirements. This extensive inspection is a testament to our relentless dedication to quality, ensuring every part we deliver meets our stringent standards, thereby providing only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of precision and innovation in the realm of high-precision component machining. Our illustrious journey, driven by an insatiable passion and unwavering dedication to the art and science of engineering, spans over two remarkable decades. We have passionately carved our niche as pioneers in precision engineering, relentlessly pursuing technical research and setting industry benchmarks of unparalleled excellence. We have amassed an unmatched depth of technical expertise, distinguishing ourselves as market leaders with a renowned reputation for exceptional excellence. Our supreme mastery in precision medical machining services consistently meets the most stringent tolerances and delivers impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration.
With four strategically positioned production bases, in the dynamic and thriving hubs of Shenzhen and Guiyang, backed by an inspiring workforce of over 400 highly skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This seamlessly connects research and development, top-tier production, and flawless delivery, ensuring that we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious 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)