Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are ardently committed to reaching the zenith of precision manufacturing. Here, timeless craftsmanship elegantly merges with cutting-edge innovation. Our dedication to unmatched excellence guarantees that every masterpiece we produce shines with impeccable perfection. With a firm commitment to quality and advanced technology, we set ourselves apart by delivering outstanding results through each intricately crafted component. Our unmatched expertise in precision engineering sets a high standard of excellence in component manufacturing. We exhibit extraordinary agility coupled with refined finesse, ensuring superior quality in every dimension of our work. This positions us as leaders within the industry. As pioneers of innovation, we establish the gold standard in conceiving and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a wide array of industries, adeptly tackling the unique challenges of various applications, including:
- Medical and BiotechWith meticulously engineered, ultra-high-precision components, our transformative solutions are crafted at the forefront of advanced medical technologies, setting new unprecedented benchmarks within the field.
- SemiconductorsWe elevate chip fabrication and its related equipment by supplying essential, critical components-fueling extraordinary advancements and efficiencies in the semiconductor sector.
- New EnergyWe are crucially instrumental in driving the innovative and sustainable development of next-generation energy solutions, contributing significantly to the future landscape of energy.
- AutomotiveWe provide vital components that propel innovation within the automotive industry, advancing the development of intelligent and electric vehicles to shape the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and top-tier quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an extraordinary ensemble of over 300 of the industry's most advanced machinery units. This extensive and cutting-edge collection ensures we remain unrivaled in innovation and adaptability. By continuously delivering groundbreaking solutions, we elevate the industry standard for excellence, constantly striving towards unmatched precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units form the backbone of our precision-driven manufacturing process, establishing the foundational infrastructure that sustains our stringent production standards. By harnessing these state-of-the-art tools, we perpetually refine and enhance our manufacturing methodologies to consistently yield remarkable results. By leveraging our sophisticated machines, we adeptly navigate complex and demanding machining requirements across a vast array of industries, attaining an unparalleled level of precision and efficiency. Our broad capabilities guarantee steadfast adherence to the highest quality standards while offering tailored customization that not only fulfills but surpasses the unique needs of our esteemed clients, exceeding their highest expectations.
- With a distinguished 20-year legacy, we draw upon a rich tapestry of manufacturing experience seamlessly intertwined with profound technical expertise and process mastery. This harmonious synergy ensures not only exceptional quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and establish new benchmarks of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the vibrant world of innovation and precision, our methodologies redefine industry standards, consistently surpassing expectations. We proudly set superior quality benchmarks, pioneering revolutionary standards that resonate through every phase of our production journey.
Every raw material entering our state-of-the-art warehouse is subject to exhaustive evaluation, establishing unprecedented standards in quality assurance. Our comprehensive approach encompasses detailed chemical composition analysis alongside exacting physical property assessments. Suppliers must provide a Certificate of Origin and a verified Declaration of Conformity, ensuring only premium materials are utilized in our cutting-edge medical machining services. This meticulous validation process reinforces the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment.
Throughout the intricate machining process, every component undergoes meticulous scrutiny, ensuring dimensions and tolerances precisely meet our stringent specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing non-conforming parts from advancing further. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework stands as the cornerstone of immaculate excellence, embodying unrivaled precision.
The First Article Inspection (FAI) process forms the foundation of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the zenith of standards, embodying our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Since its distinguished establishment in 2009, with proud roots reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a luminary of innovation within the sophisticated world of high-precision component machining. Our illustrious journey, driven by an unwavering commitment to the intricate art and science of engineering, spans over two decades of relentless innovation and masterful precision. We have expertly carved our path as pioneering leaders in precision engineering, persistently pushing the boundaries of technical research and setting unprecedented benchmarks in the industry, consistently surpassing expectations in both innovation and quality. We have meticulously cultivated an exceptional standard of technical acumen, positioning ourselves as industry frontrunners with a sterling reputation for unrivaled excellence. Our unparalleled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes that solidify our standing as the foremost choice in the medical sector. Our precision and unwavering reliability continue to earn steadfast trust and admiration, making us the preferred name for high-quality machining solutions.
With four strategically positioned production bases, nestled within the dynamic and vibrant hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly skilled professionals, Donghui has meticulously developed a comprehensive, vertically integrated industry chain. This chain seamlessly interlinks cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently 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 undertake even the most complex and demanding machining tasks, reinforcing our esteemed 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)