Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just make parts; we craft masterpieces. Our dedication to precision is not merely a duty but a passion-a fusion of art and manufacturing excellence. We are driven by an unyielding commitment to brilliance, blending intricate craftsmanship with cutting-edge scientific innovation. With unmatched expertise, we illuminate the path to precision, standing as a beacon of excellence in the prestigious realm of high-end component manufacturing. Our skills are a testament to our dedication, guiding us to deliver unparalleled quality and precision. Leading the charge at the forefront of innovation, we set the standard for excellence in the design and creation of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate into diverse industries, precisely tailored to meet an expansive range of applications, including:
- Medical and Biotech: Crafting meticulously engineered, ultra-precise components and pioneering solutions that shape the future of medical technology.
- Semiconductors: Elevating chip production and critical equipment manufacturing with our essential core components.
- New Energy: Playing a crucial role in the sustainable transformation and innovative development of cutting-edge energy equipment.
- Automotive: Providing key components that fuel innovation in the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard custom components, designed to meet the highest standards of excellence in vital sectors such as medical, automation, semiconductor, and automotive industries.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units form the cornerstone of our precision-focused manufacturing. Empowering us to tackle the multifaceted and demanding machining requirements of diverse industries with exceptional precision and efficiency, our expansive capabilities ensure adherence to the highest quality standards. We offer bespoke customization, meticulously crafted to meet the unique needs of our distinguished clientele, elevating their expectations with every project.
- With an illustrious 20-year legacy, we harbor a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but surpass 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
Exceeding Excellence: Meticulous Incoming Material Inspection Surpassing Industry Norms
In our cutting-edge warehouse, every raw material is subjected to an unmatched level of scrutiny, setting a new benchmark in quality assurance. Our meticulous protocol includes a detailed analysis of chemical composition alongside an exhaustive examination of physical properties. We demand unparalleled excellence, requiring each supplier to present a Certificate of Origin and a fully stamped Declaration of Conformity. This ensures that only the finest materials are selected for our precision-driven medical machining services. Through this stringent verification, we guarantee the purity and integrity of our materials, consistently aligning with our superior standards of quality and precision.
In-Process Quality Control: Relentless Pursuit of Perfection
During the complex machining process, each component is meticulously examined to ensure its dimensions and tolerances adhere strictly to our exacting specifications. Our diligent inspection protocol actively intercepts any potential defects, preventing non-conforming parts from advancing. This vigilant approach dramatically reduces the risk of substandard product production, ensuring the highest quality is maintained at every critical stage of our sophisticated production process.
Proactive First Article Inspection (FAI): An Essential Framework for Excellence
Our First Article Inspection (FAI) process stands as a vital pillar of our operational strategy, adeptly identifying and resolving potential production issues right from the start. This preventive approach ensures that problems are curtailed before reaching mass production, facilitating a flawless production flow. Our all-encompassing FAI process is crucial in minimizing quality risks, guaranteeing our products consistently meet the highest standards, and reflecting our unwavering commitment to excellence throughout the production cycle.
Comprehensive Final Inspection: The Ultimate Quality Safeguard
Prior to any product leaving our premises, it undergoes a thorough and exhaustive final inspection. This rigorous assessment encompasses crucial dimensions, visual appearance, performance metrics, and any specific customer requirements. Our extensive inspection process underlines our relentless dedication to quality, ensuring every dispatched part meets our stringent standards, thereby delivering only the highest quality 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, we have emerged as trailblazers in precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of 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 makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
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)