Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the art of precision manufacturing. In a realm where time-honored craftsmanship beautifully intersects with cutting-edge innovation, we proudly herald a new era of unparalleled excellence. Our relentless pursuit of perfection ensures that every piece we create stands as a tribute to impeccable artistry. By harnessing the most advanced technologies and adhering steadfastly to our unwavering standards of quality, we distinguish ourselves by delivering exceptional, intricately engineered components that truly represent the pinnacle of precision and artistry. With unmatched expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse ensure superior quality across every facet of our operations, solidifying our position as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, expertly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the vanguard of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsBy supplying critical and essential components, we drive 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, contributing crucially to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we lead innovation in the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: Setting the Benchmark for Industrial Prowess Our operations are turbocharged by an extraordinary fleet comprising over 300 of the industry's most sophisticated and advanced machinery units. This vast and innovative assembly thrusts us to the pinnacle of innovation, securing our dominance in adaptability and precision. By tirelessly delivering groundbreaking solutions, we set the industry standard for supreme excellence, continually striving for unmatched precision and exceptional quality. Top-Tier Branded Machines: Powering Precision Our pioneering machinery units stand as the bedrock of our precision-focused manufacturing operations, creating the essential foundation that sustains our unwavering production standards. Equipped with these state-of-the-art tools, we incessantly refine and enhance our manufacturing processes to consistently achieve superior outcomes. With our top-tier machinery, we execute intricate and challenging machining tasks with flawless precision and unmatched efficiency across a plethora of industries. Our extensive capabilities ensure steadfast adherence to the most rigorous quality standards while offering bespoke customization that not only meets but consistently surpasses the unique expectations of our esteemed clients, exceeding their loftiest aspirations.
- Celebrating a distinguished 20-year legacy, we draw from a deep reservoir of manufacturing expertise, intricately interwoven with profound technical knowledge and process mastery. This seamless synergy guarantees not only superior quality but also groundbreaking innovation, empowering us to consistently deliver extraordinary products that exceed expectations and redefine industry standards of excellence.
State-of-the-Art Production Equipment: Leveraging Cutting-Edge Technology for Unparalleled Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the fast-paced realm of innovation, where precision is king, we transcend industry expectations with unparalleled methodologies. We proudly lay the foundation for premier quality benchmarks, setting revolutionary standards that influence every stage of our production journey. Our unwavering dedication to excellence is echoed throughout our processes, ensuring our materials are as refined as our methods.
Every raw material entering our cutting-edge warehouse undergoes a stringent evaluation that sets an unprecedented benchmark in quality assurance. Our holistic approach includes meticulous chemical composition analysis and rigorous assessments of physical properties. Suppliers are obligated to provide a Certificate of Origin, paired with a verified Declaration of Conformity, to confirm that only premier materials are used in our avant-garde medical machining services. This exacting validation process fortifies the integrity of materials, perfectly aligning with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: With an unwavering commitment to meticulous detail and relentless vigilance, we strive for perfection with unwavering dedication. This scrupulous process ensures our standard of excellence is consistently met-and often surpassed-across every production phase.
Throughout the intricate machining process, each component undergoes exhaustive scrutiny to ensure dimensions and tolerances are precisely aligned with our stringent specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly reduce the risk of producing substandard goods, consistently maintaining exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the bedrock of immaculate excellence, showcasing unparalleled precision and thoroughness.
The First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the onset. This proactive approach guarantees that issues are tackled before escalating into production hurdles. Our comprehensive FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, and mirroring our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, securing the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation comprises assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every delivered part aligns with our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, though our illustrious journey began in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. was founded as a beacon of excellence in the elite realm of high-precision component machining. Our distinguished odyssey in engineering is fueled by an unwavering passion for the intricate art and science of precision, spanning over two decades of relentless innovation and extraordinary craftsmanship. We have brilliantly forged our reputation as trailblazers in precision engineering, consistently propelling technical research forward and setting groundbreaking standards in the industry. Our legacy is defined by our ability to continuously exceed expectations with our innovative spirit and unparalleled commitment to quality. We have meticulously honed an extraordinary level of technical expertise, establishing ourselves as market leaders with a distinguished reputation for unrivaled excellence. Our proficiency in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances and delivering impeccable surface finishes. This steadfast dedication solidifies our status as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and respect, positioning us as the foremost authority in superior machining solutions.
With four strategically located production facilities, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by an elite team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive and vertically integrated industry chain. This seamless network adeptly unites pioneering research and development, superior production, and impeccable delivery. Our operations ensure that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are exquisitely designed to tackle the most intricate and demanding machining challenges, 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)