Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Energized by a formidable fleet of over 300 industry-leading, advanced machinery units, our operations are a testament to innovation and adaptability. With this avant-garde array of equipment, we continuously set the standard for excellence, pushing the boundaries of precision and quality. Our relentless pursuit of groundbreaking solutions ensures we remain at the pinnacle of industrial innovation, steadfastly leading the charge in achieving unmatched precision and superior quality. These Top-Tier Branded At the heart of our manufacturing prowess lies our cutting-edge machinery, the backbone of our precision-focused process. These state-of-the-art tools form the essential infrastructure that upholds our rigorous production standards. By leveraging this sophisticated equipment, we fine-tune our manufacturing strategies, consistently delivering results that reflect our commitment to exceptional quality and precision. By harnessing our high-caliber machines, we execute complex and demanding machining requirements with unparalleled precision and efficiency across diverse industries. Our expansive capabilities ensure unwavering adherence to the highest quality standards, while offering personalized customization meticulously crafted to exceed the distinct needs of our esteemed clients, surpassing even their loftiest expectations.
- With a prestigious 20-year legacy, we draw from a deep reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process acumen. This perfect blend guarantees not only superior quality but also pioneering innovation, empowering us to deliver extraordinary products that not only exceed expectations but redefine industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: At the cutting edge of innovation and precision, we shatter industry standards by deploying unmatched methodologies. We craft the zenith of quality benchmarks and redefine standards at every juncture.
Every raw material that enters our state-of-the-art warehouse undergoes a rigorous evaluation process, establishing a new echelon in quality assurance. Our comprehensive approach includes thorough chemical composition analysis and precise physical property assessment. We mandate that our suppliers provide a Certificate of Origin and a verified Declaration of Conformity, ensuring only the finest materials are used in our advanced medical machining services. This meticulous validation process safeguards the integrity and purity of materials, perfectly aligned with our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unparalleled attention to detail fuel our pursuit of perfection with unwavering focus.
Throughout the intricate machining journey, each component is scrutinized to ensure that dimensions and tolerances align precisely with our stringent specifications. This continuous inspection protocol is pivotal in proactively detecting and halting potential defects, thus preventing the escalation of any non-conforming parts. Through this diligent strategy, we significantly reduce the risk of producing subpar goods, ensuring that exceptional quality is consistently maintained across every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of impeccable excellence and unrivaled precision.
Our First Article Inspection (FAI) process is the linchpin of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are mitigated before they snowball into mass production obstacles. This all-encompassing FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the apex of standards and embodying our steadfast commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unmatched quality and precision.
Before any product departs our facility, it undergoes an exhaustive and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring every part delivered meets our exacting standards and provides our esteemed customers with products of the highest quality.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with origins tracing back to a formative 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a beacon of excellence in the meticulous realm of high-precision component machining. Our storied journey, driven by a profound dedication to the craftsmanship and science of engineering, extends over two decades of unwavering innovation and precision. We have skillfully mastered our niche as trailblazers in precision engineering, continually pushing the frontiers of technical research and establishing new, unrivaled industry benchmarks. We have cultivated a supreme level of technical mastery, distinguishing ourselves as frontrunners with an esteemed reputation for unparalleled excellence. Our unmatched expertise in precision medical machining services consistently adheres to the strictest tolerances, delivering impeccable surface finishes. This fortifies our status as the preferred choice in the medical sector, where our precision and consistency continue to earn unwavering trust and admiration.
With four strategically positioned production bases, in the dynamic and thriving locales of Shenzhen and Guiyang, supported by a remarkable team of over 400 highly skilled employees, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that seamlessly unites research and development, elite production, and flawless delivery. This ensures we consistently meet and exceed the diverse needs of our clients with impressive efficiency and unparalleled quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding 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)