Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are resolutely committed to achieving unparalleled excellence. Our fervent dedication to mastering both the intricate science and the fine art of manufacturing forms the backbone of our drive towards producing superior products. Our exceptional expertise lights the way in precision, guiding us through the prestigious domain of top-tier component manufacturing with unrivaled skill and mastery. As trailblazers of innovation, we establish the gold standard in crafting and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly span across a multitude of industries, adeptly meeting a wide array of demands in diverse applications, including:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and visionary solutions designed for the forthcoming era of medical devices.
- Semiconductors: Enhancing chip production and its associated equipment with vital components that are as critical as they are indispensable.
- New Energy: Playing a pivotal role in the innovative and sustainable progression of next-generation energy equipment.
- Automotive: Delivering crucial components that drive innovation within the automotive industry, supporting the development of intelligent and electric vehicles.
Main Products
- Expertly crafted with precision, our bespoke non-standard components serve essential sectors such as medical, automation, semiconductor, and automotive with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly feature an unrivaled fleet of over 300 of the industry's most sophisticated and advanced machinery units. This powerful arsenal of equipment categories allows us to maintain a significant edge in innovation and adaptability, consistently providing groundbreaking solutions that meet and exceed industry standards. These Top-Tier Branded machinery units form the very core and backbone of our precision-driven manufacturing processes. Leveraging our high-caliber machines, we skillfully address complex and demanding machining requirements across a broad spectrum of industries. Our operations are characterized by remarkable precision and efficiency, ensuring unwavering adherence to the most stringent quality standards. We offer bespoke customization options, meticulously crafted to meet the unique needs and aspirations of our esteemed clients.
- Boasting a prestigious 20-year legacy, we draw upon a rich reservoir of manufacturing experience seamlessly intertwined with profound technical expertise and process strengths. This formidable combination guarantees not only superior quality but also groundbreaking innovation. Our enduring expertise enables us to consistently deliver exceptional products that not only meet but often 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
Meticulous and Rigorous Incoming Material Inspection: Exceeding industry standards is our norm, as we employ unrivaled precision in every assessment.
Each raw material entering our secure warehouse undergoes a comprehensive evaluation process that sets a new benchmark in quality assurance. Our meticulous analysis delves into chemical composition and thoroughly examines physical properties. We demand a Certificate of Origin and a stamped Declaration of Conformity from every supplier, ensuring that only the finest materials are incorporated into our advanced medical machining services. This rigorous authentication guarantees material integrity and purity, perfectly aligning with our steadfast commitment to superior quality standards.
Rigorous In-Process Quality Control: Our keen vigilance and meticulous attention to detail propel us relentlessly toward perfection.
During the intricate machining process, each component is meticulously scrutinized to guarantee precise dimensions and tolerances that align with our stringent specifications. This ongoing inspection is pivotal in intercepting potential defects proactively, preventing any non-conforming parts from advancing. Through this vigilant approach, we significantly reduce the risk of producing substandard goods, ensuring that superior quality is consistently maintained throughout every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of impeccable excellence and precision.
Our First Article Inspection (FAI) process is the foundation of our quality strategy, adeptly identifying and resolving potential production challenges at the outset. This proactive approach ensures that potential issues are contained before escalating into mass production concerns. Our comprehensive FAI process is essential in minimizing quality risks, ensuring that our products consistently reach the pinnacle of standards, reflecting our unwavering commitment to excellence at every stage of the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unmatched quality and precision.
Before any product leaves our facility, it undergoes an exhaustive final inspection, scrutinizing dimensions, visual appearance, performance, and customer-specific requirements. This rigorous assessment is a testament to our relentless dedication to quality, ensuring each part meets our exacting standards, thus delivering 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)