Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embody an unwavering commitment to excellence, transforming our craftsmanship into an exquisite art form. Our relentless dedication to perfection fuels our pursuit of mastery in the meticulous art of precision and the innovative science of manufacturing excellence. Our expert craftsmanship stands as a beacon of unrivaled precision, illuminating the path to excellence in the prestigious arena of high-end component manufacturing. Leading the charge at the forefront of technological advancement, we set the benchmark in designing and engineering revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a wide array of industries, adeptly addressing diverse needs with precision applications, including:
- Medical and Biotech: Crafting precisely engineered, highly accurate components and pioneering solutions designed to revolutionize the future of medical technology.
- Semiconductors: Enhancing chip production and essential equipment with indispensable core components that drive performance and innovation.
- New Energy: Playing a pivotal role in the sustainable advancement and evolution of innovative energy equipment.
- Automotive: Delivering vital components that spearhead innovation within the automotive industry, fostering the evolution of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving key sectors such as medical, automation, semiconductor, and automotive industries with unparalleled distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an extraordinary fleet of more than 300 of the most advanced machinery units in the industry. This elite collection ensures that we uphold a vast and dynamic array of equipment categories, empowering us to remain at the forefront of innovation and adaptability across diverse industrial landscapes. These premium branded machinery units form the backbone of our precision-focused manufacturing. Empowering us to meet the multifaceted and challenging machining demands of diverse industries with outstanding precision and efficiency, our extensive capabilities guarantee adherence to the utmost quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique requirements of our distinguished clientele, consistently elevating their expectations with every project.
- With an illustrious 20-year legacy, we possess a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise equips us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Unleashing Unmatched Precision Beyond Industry Standards
Within the cutting-edge confines of our advanced warehouse, every raw material is subjected to an exhaustive and meticulous evaluation process, setting unprecedented standards for quality assurance excellence. Our detailed approach incorporates thorough analysis of chemical compositions in tandem with an extensive review of physical attributes. Adhering to the pinnacle of standards, we mandate suppliers to furnish a Certificate of Origin along with a stamped Declaration of Conformity. This protocol ensures that only world-class materials are selected for our precision-focused medical machining services. This stringent validation process guarantees the purity and integrity of materials, consistently meeting and surpassing our elevated benchmarks for precision and quality.
Rigorous In-Process Quality Control: Embarking on a Quest for Perfection
Throughout the complex machining process, each component undergoes thorough scrutiny to ensure its dimensions and tolerances adhere to our stringent specifications. Our rigorous inspection protocol remains ever-vigilant, intercepting potential defects to prevent non-conforming parts from progressing. This attentive approach significantly reduces the risk of inferior products, ensuring that exceptional quality is meticulously maintained at every essential production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unrivaled Excellence
Our First Article Inspection (FAI) procedure is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before scaling to mass production, securing a seamless flow of flawless production. Our extensive FAI process is crucial for minimizing quality risks, ensuring our offerings consistently meet the highest standards, underscoring our unwavering commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a comprehensive and intricate final inspection. This meticulous evaluation covers dimensions, visual appeal, performance, and custom customer requirements. Our exhaustive inspection process is a testament to our unwavering commitment to quality, ensuring that each dispatched piece meets our stringent standards, thereby delivering only top-tier products to our esteemed clientele.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., has passionately dedicated itself to mastering the art and science of high-precision component machining. Over the past two decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging machining tasks, cementing our prestigious reputation for excellence and 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)