Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are devoted to elevating the art of precision manufacturing to new heights. In a dynamic fusion of traditional craftsmanship and state-of-the-art innovation, we champion a new era of unrivaled excellence. Our unwavering pursuit of perfection ensures that each creation is a masterpiece of exquisite artistry. By leveraging cutting-edge technologies and maintaining our steadfast commitment to quality, we set ourselves apart, delivering outstanding, intricately engineered components that embody the zenith of precision and artistry. With unparalleled expertise in precision engineering, we set the benchmark for component excellence across the industry. Our remarkable agility and sophisticated finesse guarantee unmatched quality throughout all facets of our operations, solidifying our reputation as pioneers and leaders in the industry. As innovators at the forefront of technology, we redefine standards in the design and deployment of groundbreaking intelligent automation equipment. Our visionary solutions seamlessly integrate into a wide array of industries, expertly addressing the distinct challenges of various applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, establishing unprecedented standards of excellence in the field.
- SemiconductorsWith our critical, high-value components, we are leading the charge in driving advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially shaping the future landscape of energy solutions.
- AutomotiveBy providing indispensable components, we spearhead innovation within the automotive industry. Our advancements support the development of intelligent and electric vehicles, revolutionizing the future of mobility.
Main Products
- Our expertly crafted non-standard customized components exemplify excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are synonymous with excellence, driven by an extraordinary fleet of over 300 of the industry's most sophisticated and advanced machinery units. This illustrious and innovative assembly catapults us to the zenith of industrial innovation, ensuring our leadership in both adaptability and precision. By consistently delivering groundbreaking solutions, we set and perpetuate the industry standard for excellence, continuously striving for unmatched precision and unparalleled quality. These Top-Tier Branded Units: The Foundation of Our Excellence Our pioneering machinery units are the bedrock of our precision-focused manufacturing operations, forming the indispensable infrastructure that bolsters our steadfast production standards. With these state-of-the-art tools, we are in a constant state of refinement, perpetually enhancing and elevating our manufacturing processes to achieve consistently superior and transformative results. With our unrivaled top-tier machines, we seamlessly execute intricate and demanding machining tasks across diverse industries, achieving unmatched precision and efficiency. Our vast capabilities ensure unwavering compliance with the most rigorous quality standards, while delivering bespoke customization that not only meets but consistently exceeds the distinctive expectations of our valued clients, surpassing their highest aspirations.
- Celebrating an esteemed 20-year legacy, our journey is deeply rooted in a profound reservoir of manufacturing expertise intricately interwoven with profound technical knowledge and process mastery. This seamless synergy guarantees not just superior quality but also groundbreaking innovation. We are empowered to consistently deliver extraordinary products that transcend expectations and redefine the very standards of industry excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality and Innovation
High-Precision Inspection Equipment: Ensuring Flawless Accuracy, Consistency, and Excellence
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the ever-evolving realm of technological advancement where precision is paramount, we transcend ordinary industry standards through our superior methodologies. We proudly lay the groundwork for exceptional quality benchmarks, setting groundbreaking norms that influence each stage of our production journey. Our steadfast dedication to excellence shines through in each meticulously designed step, guaranteeing that our materials are as sophisticated as the advanced techniques we utilize.
Every raw material that enters our state-of-the-art warehouse is subject to a rigorous evaluation, establishing unparalleled standards in quality assurance. Our comprehensive approach includes meticulous chemical composition analysis and stringent assessments of physical properties. Suppliers must provide a Certificate of Origin, supported by a verified Declaration of Conformity, ensuring that our cutting-edge medical machining services use only the finest materials. This demanding validation process reinforces the integrity of materials, perfectly in line with our resolute dedication to supreme quality.
Uncompromising In-Process Quality Control: With an unwavering dedication to meticulous detail and ceaseless vigilance, we relentlessly pursue perfection. This meticulous process ensures our excellence standard is consistently met-and often exceeded-across every production phase.
Throughout the intricate machining process, each component is subjected to thorough scrutiny to ensure dimensions and tolerances are precisely aligned with our stringent specifications. This proactive inspection protocol is vital in detecting and intercepting potential defects, effectively preventing any non-conforming parts from proceeding. Through this diligent methodology, we significantly minimize the risk of producing substandard goods, consistently maintaining outstanding quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework stands as the foundation of immaculate excellence, highlighting unmatched precision and thoroughness.
The First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly pinpointing and resolving potential production challenges from the start. This proactive approach ensures that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is crucial in reducing quality risks, guaranteeing our products consistently achieve the highest standards and reflecting our steadfast commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses assessments of dimensions, visual appeal, performance, and adherence to customer-specific requirements. This exhaustive inspection underscores our steadfast dedication to quality, ensuring each delivered part aligns with our exacting standards, offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of innovation in the refined realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with an esteemed reputation for unparalleled excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)