Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embrace a steadfast dedication to unparalleled excellence, transforming our craftsmanship into an exquisite art form. Our relentless quest for perfection propels us to excel in both the meticulous discipline of precision and the pioneering science of manufacturing innovation. Our expertise shines as a guiding beacon of unmatched precision, illuminating the prestigious landscape of high-end component manufacturing. Pioneering at the forefront of innovation, we define the benchmark in designing and engineering revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a diverse spectrum of industries, skillfully addressing a wide array of needs with precision applications, including:
- Medical and Biotech: Crafting meticulously engineered, exceptionally precise components and groundbreaking solutions tailored to shape the future landscape of medical technology.
- Semiconductors: Enhancing chip production and related essential equipment through indispensable core components, raising industry standards.
- New Energy: Playing an instrumental role in the sustainable transformation of pioneering energy equipment.
- Automotive: Providing essential components that drive innovation within the automotive sector, fostering the growth and evolution of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving pivotal sectors such as medical, automation, semiconductor, and automotive industries with exceptional precision and distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by a remarkable fleet comprising over 300 of the industry's top-tier machinery units. This exceptional collection guarantees our position as leaders in innovation and adaptability, supporting a wide and versatile range of equipment categories across various industrial fields. These premium branded machinery units serve as the cornerstone of our exacting manufacturing processes. Our expansive capabilities empower us to address the complex and demanding machining needs of diverse industries with remarkable precision and efficiency. We consistently adhere to the highest quality standards, offering bespoke customization that is artfully designed to meet the unique requirements of our esteemed clientele, elevating expectations with every endeavor.
- With a distinguished 20-year heritage, we draw from a rich well of manufacturing experience, seamlessly integrated with in-depth technical proficiency and robust process strengths. This assures the delivery of exceptional quality and pioneering innovation. Our longstanding expertise enables us to reliably deliver outstanding 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
Meticulous and Rigorous Incoming Material Inspection: Setting the Gold Standard in Precision and Quality
Within our cutting-edge warehouse, each raw material is subjected to a thorough and rigorous evaluation that elevates quality assurance to new heights. Our meticulous scrutiny includes detailed chemical composition analyses and comprehensive physical attribute examinations. We uphold the highest standards by mandating suppliers to furnish a Certificate of Origin and a stamped Declaration of Conformity. This process ensures that only the finest materials make the cut for our precision-driven medical machining services. Our stringent validation guarantees the integrity and purity of materials, consistently surpassing our elevated precision and quality benchmarks.
In-Process Quality Control: Striving for Perfection at Every Turn
Throughout the intricate machining journey, each component is meticulously examined to confirm its dimensions and tolerances meet our stringent specifications. Our rigorous inspection protocol is ever vigilant, intercepting any potential defects to prevent non-conforming parts from advancing. This diligent approach significantly mitigates the risk of subpar products, ensuring that extraordinary quality is meticulously upheld at every pivotal stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Pioneering Preventive Excellence
Our First Article Inspection (FAI) procedure is the bedrock of our quality strategy, skillfully identifying and resolving production challenges from the outset. This proactive approach ensures issues are addressed before transitioning to mass production, facilitating a smooth flow of flawless production. Our comprehensive FAI process is crucial for minimizing quality risks, consistently meeting the highest standards, and emphasizing our unwavering commitment to excellence throughout every phase of production.
Thorough and Detailed Final Inspection: The Ultimate Quality Guardian
Before any product leaves our premises, it undergoes a meticulous and exhaustive final inspection that covers dimensions, visual appeal, performance, and tailored customer requirements. Our comprehensive inspection process is a testament to our steadfast dedication to quality, ensuring each piece dispatched adheres to our stringent standards, thus delivering only the finest 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)