Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to the art of precision manufacturing. Where time-honored craftsmanship meets cutting-edge innovation, we usher in a new era of unparalleled excellence. Our relentless pursuit of perfection ensures every creation is a testament to impeccable artistry. By leveraging the latest technologies and adhering to our unwavering quality standards, we distinguish ourselves, delivering exceptional, intricately engineered components that epitomize 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 unparalleled quality across every aspect of our operations, establishing us 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, masterfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsSupplying critical and essential components, we drive advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation in 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 spearhead 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 are the epitome of excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endure 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 sophisticated and cutting-edge machinery units. This vast and innovative collection catapults us to the pinnacle of ingenuity, cementing our leadership in adaptability and precision. Consistently delivering transformative solutions, we define the industry benchmark for excellence, eternally striving for unmatched precision and superior quality. These Top-Tier Branded Our revolutionary machinery units stand as the foundation of our precision-driven manufacturing operations, creating the vital infrastructure that supports our unwavering production standards. With these advanced tools, we constantly refine and elevate our manufacturing processes to achieve results that are consistently outstanding. With our top-tier machines, we masterfully execute intricate and demanding machining tasks across a broad range of industries, delivering unmatched precision and efficiency. Our extensive capabilities guarantee unwavering adherence to the most rigorous quality standards while offering customized solutions that not only meet but consistently exceed the unique expectations of our esteemed clients, surpassing their loftiest aspirations.
- Celebrating a distinguished 20-year legacy, we draw from a rich reservoir of manufacturing expertise intricately interwoven with profound technical knowledge and process mastery. This seamless blend ensures not only superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver exceptional 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 the dynamic world of cutting-edge innovation, precision reigns supreme, and we go beyond industry norms with our exceptional methodologies. We proudly set the stage for premier quality benchmarks, establishing groundbreaking standards that influence every stage of our production journey. Our unwavering commitment to excellence is echoed in each step, ensuring our materials are as refined as our methods, pioneering a new realm of precision.
Each raw material entering our state-of-the-art warehouse undergoes a stringent evaluation process that sets a new benchmark in quality assurance. Our holistic approach encompasses meticulous chemical composition analysis and rigorous assessments of physical properties. Suppliers are required to provide a Certificate of Origin, along with a verified Declaration of Conformity, to ensure that only the highest quality materials are utilized in our innovative medical machining services. This exacting validation process fortifies the integrity of materials, seamlessly aligning with our unwavering dedication to superior quality and reliability.
Uncompromising In-Process Quality Control: Driven by a steadfast commitment to meticulous detail and relentless vigilance, we strive for perfection with unwavering dedication. This scrupulous process ensures that our standard of excellence is consistently met-and often surpassed-across every phase of production, reinforcing our commitment to delivering only the best.
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 critical 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 standards at every stage of production, ensuring unparalleled excellence.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the foundation of immaculate excellence, demonstrating unparalleled precision and thoroughness in every detail.
The First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach guarantees that issues are addressed before they can escalate into production hurdles. Our comprehensive FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, and reflecting our unwavering 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 with every product.
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 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, a testament to our commitment to perfection and excellence.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although 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)