Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to refining the art of precision manufacturing. Where timeless craftsmanship meets groundbreaking innovation, we herald a new era of unmatched excellence. Our relentless pursuit of perfection ensures each creation is a testament to flawless artistry. By leveraging the latest technologies and maintaining our unwavering quality standards, we set ourselves apart, delivering exceptional, intricately engineered components that epitomize the pinnacle of precision and craftsmanship. With unparalleled expertise in precision engineering, we set the gold standard for excellence in components. Our extraordinary agility and sophisticated finesse guarantee unrivaled quality across every element of our operations, solidifying our status as industry pioneers and leaders. As pioneers of innovation, we redefine the benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across diverse industries, expertly addressing the unique challenges of various applications, such as:
- 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 this field.
- SemiconductorsBy supplying critical, essential components, we drive advancements in chip fabrication and related equipment, greatly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in fostering the innovative and sustainable evolution of next-generation energy equipment, making crucial contributions 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 stand as the epitome of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that endures through time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a truly extraordinary fleet of over 300 of the industry's most sophisticated machinery units. This extensive and cutting-edge arsenal not only solidifies our leadership in innovation and adaptability but also consistently establishes the industry benchmark for excellence. We are passionately committed to delivering groundbreaking solutions, always striving for unmatched precision and exemplary quality that redefine and elevate industry standards. These Top-Tier Branded Our pioneering machinery units serve as the cornerstone of our precision-driven manufacturing process, forming the essential backbone that upholds our unwavering production standards. These state-of-the-art instruments empower us to continuously refine and elevate our manufacturing methods. This ensures that we consistently achieve outstanding results with remarkable reliability and consistency. Leveraging our high-caliber machines, we expertly manage complex and demanding machining tasks across a myriad of industries, achieving unmatched precision and efficiency. Our extensive capabilities guarantee strict adherence to the highest quality standards while offering bespoke customization that not only fulfills but consistently surpasses the unique needs of our esteemed clients, greatly exceeding their loftiest expectations.
- With a prestigious 20-year legacy, we draw upon a rich tapestry of manufacturing experience intricately woven with profound technical expertise and process mastery. This harmonious synergy ensures not only superior quality but also groundbreaking innovation, empowering us to consistently deliver extraordinary products that surpass expectations and redefine the industry's 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 a world where precision and innovation are the pillars of success, we don't just meet the industry's standards-we redefine them with our unmatched methodologies. We lay the foundation for exceptional quality, setting transformative benchmarks that resonate throughout every stage of our production journey.
Each raw material destined for our cutting-edge warehouse undergoes a stringent evaluation, setting a new gold standard in quality assurance. Our exhaustive approach encompasses detailed chemical composition analysis and rigorous physical property assessments. Our esteemed suppliers are required to provide a Certificate of Origin, complemented by a certified Declaration of Conformity, to guarantee that only top-tier materials enhance our advanced medical machining services. This meticulous validation process fortifies the purity and integrity of materials, seamlessly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: Driven by an unwavering pursuit of perfection, our commitment to detail and vigilance ensures our excellence standards are not just met but consistently exceeded.
During the intricate machining process, each component is meticulously examined to ensure dimensions and tolerances are precisely in line with our stringent specifications. This proactive inspection protocol is vital in detecting and mitigating potential defects early on, preventing non-conforming parts from progressing. This diligent approach drastically minimizes 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 proactive framework forms the cornerstone of impeccable excellence, showcasing unparalleled 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 outset. By addressing issues before they escalate, our proactive approach minimizes quality risks, ensuring our products consistently meet the highest standards. This reflects our steadfast commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate sentinel of extraordinary quality and precision, ensuring that perfection is delivered every time.
Before any product leaves our premises, it undergoes a meticulous and exhaustive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring that every component delivered meets our exacting standards and delights our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our esteemed 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 propelled by an unwavering zeal for the intricate art and rigorous science of engineering, spanning over two decades of relentless innovation and exceptional precision. We have etched our name in history as pioneers in precision engineering, continuously pushing the boundaries of technical research and setting groundbreaking industry standards, while consistently exceeding expectations with both innovative brilliance and unmatched quality. We have masterfully cultivated an unparalleled level of technical expertise, establishing ourselves as market leaders with a stellar reputation for unmatched excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication has solidified our status as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and esteem, making us the premier name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and dynamic locales of Shenzhen and Guiyang, and bolstered by an impressive team of over 400 highly skilled specialists, Donghui has meticulously engineered a comprehensive, vertically integrated industry chain. This seamless chain connects cutting-edge research and development, top-notch production, and impeccable delivery. Our operations ensure that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and demanding machining tasks, strengthening 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)