Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently dedicated to the art and science of precision manufacturing. In a realm where traditional craftsmanship harmoniously blends with state-of-the-art innovation, we are proud to usher in a new era marked by extraordinary excellence. Our unyielding pursuit of perfection ensures that each of our creations is a masterpiece of impeccable artistry. By leveraging cutting-edge technologies and adhering to our steadfast commitment to quality, we set ourselves apart, delivering exceptional components that epitomize the ultimate in precision engineering and artistic craftsmanship. Boasting unparalleled expertise in precision engineering, we define the gold standard of component superiority. Our extraordinary agility and refined sophistication guarantee unmatched quality across every aspect of our operations, reinforcing our status as industry innovators and leaders. As visionary pioneers, we redefine industry benchmarks through our revolutionary intelligent automation equipment design and delivery. Our innovative solutions integrate seamlessly across diverse sectors, expertly tackling the unique challenges of various applications, such as:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and groundbreaking solutions spearhead advancements in medical technologies, setting new, unparalleled standards of excellence in this critical field.
- SemiconductorsBy providing essential, critical components, we propel forward advancements in chip fabrication and related technologies, significantly enhancing efficiency and pioneering innovation within the semiconductor industry.
- New EnergyWe are instrumental in the groundbreaking and sustainable evolution of next-generation energy equipment, playing a critical role in shaping the future landscape of energy solutions.
- AutomotiveSupplying indispensable components, we are at the forefront of innovation in the automotive industry, advancing the development of intelligent and electric vehicles that redefine the future of mobility.
Main Products
- Our expertly crafted non-standard, customized components are the epitome of precision and excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we deliver unbeatable precision and superior quality that endures over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an extraordinary fleet comprising over 300 of the industry's most sophisticated machinery. This vast assemblage of cutting-edge units ensures our dominance in both innovation and adaptability. Consistently delivering groundbreaking solutions, we set the gold standard in the industry for unparalleled precision and exceptional quality, continuously pushing the boundaries of what's possible. These Top-Tier Branded Our pioneering machinery units serve as the cornerstone of our precision-focused manufacturing process, establishing the essential framework that upholds our unwavering production standards. With these state-of-the-art tools, we perpetually refine and elevate our manufacturing techniques, guaranteeing consistently outstanding outcomes. Through our high-caliber machines, we execute intricate and challenging machining tasks across diverse industries with unparalleled precision and efficiency. Our expansive capabilities ensure stringent compliance with top-tier quality benchmarks while providing tailored customization that not only fulfills but consistently surpasses the unique demands of our valued clients, exceeding their highest expectations.
- Celebrating a prestigious 20-year legacy, we draw from a rich well of manufacturing experience intertwined with profound technical expertise and mastery of processes. This harmonious synergy ensures not only exceptional quality but also pioneering innovation. We empower ourselves to deliver extraordinary products that surpass expectations and 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
Exquisite and Exacting Incoming Material Inspection: In our rapidly evolving world where precision is key, we surpass the industry's highest expectations with our innovative methods. By setting unparalleled quality benchmarks, we are revolutionizing standards that reverberate through every phase of our production journey.
Each raw material entering our advanced warehouse is subjected to a rigorous evaluation, setting a new standard in quality assurance. Our thorough approach involves detailed chemical composition analysis and stringent physical property assessments. Suppliers must provide a Certificate of Origin with a verified Declaration of Conformity, ensuring only premium materials are used in our cutting-edge medical machining services. This meticulous verification fortifies the integrity and purity of our materials, aligning seamlessly with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: Our relentless pursuit of perfection is marked by an unwavering attention to detail. This meticulous process ensures our standards of excellence are consistently achieved and often exceeded.
Throughout the complex machining process, each component is meticulously scrutinized to ensure dimensions and tolerances are perfectly in line with our stringent specifications. This proactive inspection protocol plays a crucial role in identifying and addressing potential defects, preventing non-conforming parts from moving forward. By implementing this diligent strategy, we significantly minimize the risk of producing inferior products, ensuring that exceptional quality is maintained throughout every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the bedrock of immaculate excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the very beginning. This preemptive approach guarantees that issues are addressed before they escalate into production hindrances. Our extensive FAI process is vital in minimizing quality risks, ensuring our products consistently meet the highest standards, and reflecting our steadfast commitment to excellence throughout every stage of production.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of outstanding quality and precision, ensuring the delivery of flawless perfection.
Before any product leaves our facility, it undergoes an exhaustive and meticulous comprehensive final inspection. This intensive evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part adheres to our stringent standards and provides our esteemed customers with the highest caliber products.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was established as a luminary in the refined domain of high-precision component machining. Our prestigious journey has been fueled by a relentless passion for the nuanced art and exacting science of engineering, spanning more than two decades of unyielding innovation and extraordinary precision. We have brilliantly etched our name as pioneers in precision engineering, perpetually advancing technical research and establishing groundbreaking standards in the industry, continually surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an extraordinary level of technical prowess, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our expertise in precision medical machining services is second to none, consistently achieving the strictest tolerances and delivering impeccable surface finishes. This dedication confirms our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and regard, 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 chain seamlessly connects cutting-edge research and development, superior production, and impeccable delivery. Our operations guarantee we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are exceptionally designed to handle the most intricate and demanding machining tasks, bolstering 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)