Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are the epitome of extraordinary dedication to crafting excellence, where our artistry in precision becomes a masterpiece. Our unwavering quest for perfection propels us to excel in the intricate artistry of precision machining and the avant-garde innovation in manufacturing science. Our expertise radiates as a guiding light of unparalleled precision in the esteemed realm of high-end component crafting, setting us apart as leaders in this exclusive domain. At the vanguard of innovation, we define the benchmark for designing and engineering pioneering intelligent automation equipment. Our state-of-the-art solutions are designed to seamlessly integrate across a vast spectrum of industries, skillfully meeting a wide array of precision needs, including:
- Medical and Biotech: Meticulously crafting precisely engineered components and groundbreaking solutions, we are at the forefront of pioneering advancements in medical technology.
- Semiconductors: Advancing chip production and auxiliary essential equipment with our indispensable core components, we elevate the sector's capabilities.
- New Energy: Significantly contributing to the sustainable transformation of innovative energy equipment, we play a crucial role in its evolution.
- Automotive: Supplying indispensable components that fuel innovation in the automotive industry, we champion the advancement of intelligent and electric vehicles.
Main Products
- With expert craftsmanship, we deliver non-standard customized components, serving pivotal sectors such as medical, automation, semiconductor, and automotive industries with exceptional distinction and sophistication.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are supported by a remarkable fleet comprising over 300 of the industry's most advanced machinery units. This elite collection ensures we maintain an extensive and dynamic array of equipment categories, empowering us to be at the forefront of innovation and adaptability across diverse industrial fields. These top-tier branded machinery units form the backbone of our precision-driven manufacturing approach. This empowers us to address the complex and demanding machining requirements of various industries with outstanding precision and efficiency. Our expansive capabilities guarantee adherence to the highest quality standards. We offer bespoke customization, meticulously tailored to meet the unique needs of our distinguished clientele, elevating their expectations with every project we undertake.
- With a prestigious 20-year legacy, we possess a profound reservoir of manufacturing experience, seamlessly integrated with deep technical expertise and process strengths. This ensures the delivery of superior quality and pioneering innovation. Our enduring expertise enables us to consistently provide exceptional 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: Surpassing Industry Benchmarks
In our state-of-the-art facility, each raw material undergoes a rigorous and comprehensive evaluation process that sets new standards in quality assurance. Our meticulous approach involves a thorough analysis of chemical compositions and an exhaustive examination of physical attributes. We maintain the highest level of standards by requiring every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This ensures that only the finest materials are selected for our precision-driven medical machining services. This stringent verification process preserves the integrity and purity of materials, consistently meeting and exceeding our elevated benchmarks for quality and precision.
Rigorous In-Process Quality Control: A Relentless Pursuit of Perfection
During the intricate machining process, each component is meticulously inspected to confirm its dimensions and tolerances align with our exacting specifications. Our vigilant inspection protocol adeptly intercepts any potential defects, preventing non-conforming parts from advancing further. This watchful methodology significantly minimizes the risk of inferior goods, ensuring that superior quality is consistently upheld at every critical phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and addressing potential production bottlenecks from the outset. This proactive approach guarantees that issues are addressed before scaling to mass production, ensuring a seamless flow of impeccable production. Our robust FAI process is instrumental in mitigating quality risks, ensuring our products continuously adhere to the highest standards, reinforcing our unwavering commitment to excellence throughout the production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product departs our facilities, it is subjected to an exhaustive and meticulous final inspection. This comprehensive evaluation encompasses dimensions, visual aesthetics, performance, and all specific customer requirements. Our detailed inspection process epitomizes our steadfast dedication to quality, certifying that every dispatched part meets our rigorous standards, thereby providing only the highest quality products to our esteemed and valued 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)