Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are devoted to achieving the zenith of precision manufacturing, where the art of timeless craftsmanship intertwines seamlessly with groundbreaking innovation. Our unwavering pursuit of excellence guarantees that each creation is a masterpiece, radiating with impeccable perfection. By steadfastly committing to the highest standards of quality craftsmanship and advanced technology, we set ourselves apart by delivering outstanding results in every intricately crafted component. Our unrivaled expertise in precision engineering establishes a new benchmark for excellence in component manufacturing. With remarkable agility and sophisticated finesse, we ensure unparalleled quality in every aspect of our work, solidifying our position as industry leaders. As pioneers of innovation, we define the ultimate standard in the design and delivery of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a wide range of industries, effectively addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are crafted to lead the way in advanced medical technologies, setting new and unprecedented benchmarks within the field.
- SemiconductorsWe enhance chip fabrication and related equipment by supplying critical, essential components-driving exceptional advancements and increased efficiency within the semiconductor industry.
- New EnergyWe are instrumental in advancing the innovative and sustainable development of next-generation energy equipment, actively contributing to shaping the future landscape of energy solutions.
- AutomotiveWe supply vital components that propel innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles and shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize the zenith of excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we provide unparalleled precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are energized by an extraordinary assembly of over 300 top-tier machinery units, placing us at the forefront of industrial innovation and adaptability. This expansive, cutting-edge arsenal ensures our steadfast leadership in setting industry benchmarks for excellence. Continuously delivering revolutionary solutions, we maintain our unwavering commitment to unparalleled precision and superior quality. These Top-Tier Branded Our pioneering machinery units are the bedrock of our precision-focused manufacturing process, forming the critical infrastructure that reinforces our unwavering production standards. By utilizing these state-of-the-art tools, we perpetually enhance and advance our manufacturing techniques to consistently deliver exceptional results. Through our high-performance machines, we masterfully handle intricate and demanding machining projects across diverse industries, achieving unprecedented levels of precision and efficiency. Our vast capabilities ensure strict adherence to the highest quality standards while providing tailored customization that not only meets but exceeds the specific needs of our esteemed clients, far surpassing their loftiest expectations.
- With a distinguished 20-year legacy, we draw upon a vast wellspring of manufacturing experience seamlessly integrated with exceptional technical expertise and process mastery. This perfect blend guarantees not only remarkable quality but also groundbreaking innovation. We empower ourselves to consistently deliver exceptional products that surpass expectations and set new standards 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 dynamic arena of innovation and precision, our approach not only meets but exceeds the industry's highest expectations. We take pride in establishing unmatched methodologies and pioneering superior quality benchmarks that revolutionize and resonate across every stage of our production journey.
Every raw material arriving at our cutting-edge warehouse is subjected to a thorough evaluation, establishing unparalleled standards in quality assurance. Our all-encompassing strategy involves detailed chemical composition analysis and demanding physical property assessments. Suppliers are required to provide a Certificate of Origin along with a verified Declaration of Conformity, guaranteeing that only the finest materials contribute to our advanced medical machining services. This meticulous validation process upholds 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 dedication to precision, we pursue perfection with steadfast commitment and meticulous attention to detail.
Throughout the intricate machining process, every component is subjected to meticulous scrutiny, ensuring dimensions and tolerances conform precisely to our rigorous specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework stands as the cornerstone of immaculate excellence, embodying unparalleled precision and foresight.
The First Article Inspection (FAI) process is the foundation of our quality strategy, adeptly identifying and resolving potential production challenges from the very beginning. This forward-thinking approach ensures issues are addressed before they escalate into mass production obstacles. Our thorough FAI process is indispensable in mitigating quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality, precision, and meticulousness.
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 thorough inspection underscores our steadfast dedication to quality, ensuring every part delivered meets our exacting standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with origins stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a shining beacon of ingenuity in the sophisticated domain of high-precision component machining. Our illustrious journey, fueled by an unwavering zeal for the intricate artistry and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly carved our place as pioneers in precision engineering, perpetually advancing the frontiers of technical research and setting groundbreaking benchmarks within the industry. Consistently exceeding expectations in innovation and quality, we stand as true stalwarts in the field. We have meticulously cultivated an exceptional caliber of technical expertise, positioning ourselves as market vanguards with a sterling reputation for unparalleled excellence. Our unrivaled prowess in precision medical machining services meets the most exacting tolerances, delivering flawless surface finishes, solidifying our status as the preeminent choice in the medical sector. Our unwavering precision and steadfast reliability continue to earn the trust and esteem of our clientele, making us the go-to name for high-quality machining solutions that inspire confidence and satisfaction.
With four strategically located production bases, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and bolstered by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain. This network seamlessly combines cutting-edge research and development, superior production capabilities, and impeccable delivery processes. Our operations ensure that we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and demanding machining tasks, reinforcing our revered reputation for excellence and pioneering innovation that sets us apart in the industry.
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)