Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we stand at the forefront of precision manufacturing, driven by a passionate dedication to excellence. Our legacy of time-honored craftsmanship merges harmoniously with innovation, ushering in a new era of unmatched quality. Our pursuit of perfection makes each creation a masterpiece of precision and artisan skill. By leveraging state-of-the-art technologies and maintaining unwavering quality standards, we carve out a distinctive identity, delivering intricately engineered components that epitomize the zenith of precision and craftsmanship. With unrivaled expertise in precision engineering, we set the benchmark for quality in component manufacturing. Our agility and refined finesse guarantee unmatched excellence at every stage of our operations, affirming our status as industry pioneers and leaders. As innovators at the forefront, we redefine standards in the creation and deployment of groundbreaking intelligent automation equipment. Our cutting-edge solutions integrate seamlessly across diverse industries, expertly addressing the unique challenges of various applications, which include:
- Medical and BiotechOur precision-engineered, ultra-high-precision components and transformative solutions are at the leading edge of advanced medical technologies, establishing new benchmarks of excellence in this vital field.
- SemiconductorsSupplying vital components, we are at the heart of advancements in chip fabrication and associated equipment, significantly boosting efficiency and innovation within the semiconductor industry.
- New EnergyWe play a crucial role in the evolution of next-generation energy equipment, significantly contributing to sustainable innovation and shaping the future landscape of energy solutions.
- AutomotiveProviding essential components, we lead innovation in the automotive sector. Our contributions are pivotal in advancing intelligent and electric vehicle technologies, defining the future of mobility.
Main Products
- Crafted with expertise and precision, our non-standard customized components embody excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched 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 driven by a remarkable fleet of over 300 of the industry's most advanced machinery units. This extensive, cutting-edge collection guarantees our leadership in innovation and adaptability. By consistently providing groundbreaking solutions, we set the industry benchmark for excellence, always striving toward unprecedented precision and exemplary quality. Premier Equipment Selection Our pioneering machinery units are the bedrock of our precision-focused manufacturing process, forming the critical infrastructure that supports our unwavering production standards. Through these state-of-the-art tools, we continually refine and enhance our manufacturing methods to achieve outstanding results consistently. Harnessing the power of our elite machinery, we expertly handle intricate and challenging machining tasks across a wide range of industries with unrivaled precision and speed. Our expansive capabilities ensure unwavering adherence to the highest quality standards, while our bespoke customization services elevate client satisfaction by not only meeting but consistently surpassing their highest expectations, redefining industry standards.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience intricately blended with deep technical expertise and process mastery. This harmonious synergy guarantees not only outstanding quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new 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
Exquisite and Exacting Incoming Material Inspection: In today's fast-paced world of innovation and precision, our approach surpasses industry expectations. We don't just meet standards; we redefine them with unparalleled methodologies. Our commitment to quality is the benchmark, setting revolutionary standards that resonate through every stage of production.
Every raw material entering our state-of-the-art warehouse undergoes stringent evaluation, establishing an unmatched benchmark in quality assurance. Our comprehensive approach includes detailed chemical composition analysis and rigorous physical property assessments. Suppliers must provide a Certificate of Origin and a verified Declaration of Conformity, ensuring only the finest materials are used in our cutting-edge medical machining services. This meticulous validation process fortifies the integrity and purity of materials, aligning perfectly with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With an unyielding dedication to detail and relentless vigilance, we pursue perfection with unwavering devotion. This meticulous process ensures that our standards of excellence are not only met but are often exceeded.
Throughout the intricate machining process, every component undergoes thorough scrutiny to ensure dimensions and tolerances align precisely with our stringent specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, preventing any non-conforming parts from progressing further. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, ensuring exceptional quality is consistently maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the foundation of immaculate excellence, exemplifying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards, and reflecting our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate protector of exceptional quality and precision, ensuring the delivery of perfection.
Before any product departs from our facility, it is subjected to a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes thorough assessments of dimensions, visual appeal, performance, and customer-specific requirements. This comprehensive inspection emphasizes our steadfast dedication to quality, ensuring that every delivered part meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of excellence in the sophisticated realm of high-precision component machining. Our illustrious journey has been fueled by an unwavering passion for the intricate art and rigorous 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, consistently advancing technical research and setting groundbreaking standards in the industry, while continually surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an extraordinary level of technical prowess, securing our place as market leaders with a prestigious reputation for unsurpassed excellence. Our expertise in precision medical machining services is unrivaled, consistently attaining the strictest tolerances and delivering flawless surface finishes. This dedication fortifies our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and esteem, making us the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This seamless chain bridges cutting-edge research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are expertly designed to handle the most intricate and demanding machining tasks, reinforcing our esteemed 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)