Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently devoted to perfecting the art of precision manufacturing. Where age-old expertise meets the forefront of innovation, we usher in a new chapter of unmatched excellence. Our unyielding pursuit of flawlessness ensures every masterpiece is a testament to impeccable artistry. By leveraging the latest technological advancements and steadfastly upholding our exacting quality standards, we set ourselves apart, providing exceptional, intricately engineered components that epitomize the zenith of precision and craftsmanship. With unparalleled prowess in precision engineering, we set the gold standard for component excellence. Our extraordinary agility and sophisticated finesse guarantee unparalleled quality in every aspect of our operations, cementing our status as industry pioneers and leaders. As trailblazers of innovation, we redefine benchmarks in the design and delivery of groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate into a multitude of industries, expertly tackling the unique challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components, and transformative solutions spearhead the forefront of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsWith our pivotal and essential components, we lead the charge in driving advancements in chip fabrication and associated equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a vital role in the innovative and sustainable advancement of next-generation energy equipment, critically contributing to the future landscape of energy solutions.
- AutomotiveBy providing indispensable components, we lead the charge in automotive industry innovation. Our contributions propel the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components are the gold standard of excellence. Serving essential 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 powered by a remarkable array of over 300 of the industry's most sophisticated and advanced machinery units. This vast and innovative collection propels us to the vanguard of innovation, ensuring our leadership in precision and adaptability. By consistently delivering trailblazing solutions, we establish the gold standard for excellence, perpetually striving for unmatched precision and outstanding quality. These Top-Tier Branded Our pioneering machinery units are the keystone of our precision-focused manufacturing operations, composing the vital infrastructure that supports our unwavering production standards. With these cutting-edge tools, we continually refine and enhance our manufacturing processes to achieve consistently superior outcomes. With our top-tier machines, we adeptly execute complex and demanding machining tasks across a diverse range of industries, achieving unparalleled precision and efficiency. Our extensive capabilities ensure steadfast compliance with the most rigorous quality standards while offering bespoke customization that not only meets but consistently exceeds the unique aspirations of our esteemed clients, fulfilling their loftiest expectations.
- Celebrating a prestigious 20-year legacy, we draw from a vast reservoir of manufacturing expertise intricately woven with deep technical knowledge and process mastery. This seamless synergy guarantees not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver exceptional products that exceed 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 the cutting-edge world where precision is paramount, we redefine industry benchmarks with our unparalleled methodologies. Our commitment to excellence establishes revolutionary standards across every production stage, ensuring our materials mirror the sophistication of our techniques. Embodying unwavering dedication, each meticulously crafted step enhances our reputation for world-class quality.
Each raw material entering our state-of-the-art warehouse undergoes a rigorous evaluation, setting new standards in quality assurance. Our approach includes thorough chemical composition analysis and comprehensive assessments of physical properties. Suppliers are required to provide a Certificate of Origin along with a verified Declaration of Conformity, guaranteeing that only top-tier materials are employed in our cutting-edge medical machining services. This stringent validation process ensures the integrity of materials, perfectly aligning with our unwavering dedication to exceptional quality.
Uncompromising In-Process Quality Control: Through meticulous attention to detail and relentless vigilance, we pursue perfection with unwavering dedication. This rigorous process ensures our standards of excellence are consistently met-and often surpassed-through every phase of production, underscoring our steadfast commitment to quality.
Throughout the intricate machining process, every component is subjected to exhaustive scrutiny to ensure dimensions and tolerances adhere to our rigorous specifications. This proactive inspection protocol is essential in detecting and intercepting potential defects, effectively preventing non-conforming parts from advancing. This diligent approach dramatically reduces the risk of producing substandard goods, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Serving as the foundation of immaculate excellence, our preventative framework showcases unmatched precision and thoroughness.
The First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly identifying and addressing potential production challenges from the outset. This proactive approach ensures issues are resolved before they escalate into production hurdles. Our comprehensive FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. It reflects our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, safeguarding the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and compliance with customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, offering our esteemed customers products of the highest caliber.
Packaging & Shipping
Company Profile
In the renowned year of 2009, though our roots reach back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a shining beacon of innovation in the sophisticated domain of high-precision component machining. Our illustrious journey has been fueled by an unwavering passion for the delicate artistry and rigorous science of engineering, encompassing more than twenty years of relentless innovation and exceptional precision. We have indelibly etched our name as true pioneers in the realm of precision engineering, tirelessly pushing the frontiers of technical research and setting revolutionary industry standards. We continually surpass expectations, offering innovation and unparalleled quality that stand second to none. We have meticulously cultivated a superior level of technical prowess, establishing ourselves as market leaders with a revered reputation for unmatched excellence. Our expertise in precision medical machining services stands unrivaled, consistently achieving the most stringent tolerances and delivering impeccable surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us lasting trust and high regard, making us the foremost authority for top-tier machining solutions.
With four strategically positioned production facilities, situated in the dynamic and vibrant 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 seamless chain expertly connects groundbreaking research and development, exceptional production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are exquisitely designed to tackle 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)