Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion to unmatched excellence transforms our craftsmanship into an exquisite art form. Our unwavering pursuit of perfection propels us to excel in the meticulous finesse of precision engineering and the avant-garde world of manufacturing innovation. Our expertise illuminates the industry with unparalleled precision, guiding the way in the prestigious realm of high-end component manufacturing. Leading the vanguard of innovation, we established the benchmark in designing and engineering groundbreaking intelligent automation equipment. Our advanced solutions seamlessly integrate across diverse industries, adeptly meeting a multitude of needs with precision applications, including:
- Medical and Biotech: Engineering precisely crafted components and pioneering solutions that shape the future of medical technology.
- Semiconductors: Advancing chip production and related essential equipment with indispensable core components.
- New Energy: Playing a critical role in the sustainable evolution of cutting-edge energy equipment.
- Automotive: Delivering essential components fueling innovation in the automotive sector, supporting the ascent of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving crucial sectors like medical, automation, semiconductor, and automotive industries with outstanding distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an extraordinary fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures we uphold a vast and dynamic array of equipment categories, enabling us to remain at the forefront of innovation and adaptability across various 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: Redefining Industry Standards with Incomparable Precision
Within the sophisticated confines of our cutting-edge warehouse, each raw material is subjected to an exhaustive and meticulous evaluation process, setting unprecedented benchmarks in quality assurance excellence. Our comprehensive approach encompasses a detailed analysis of chemical compositions alongside an in-depth examination of physical properties. We uphold the highest standards by mandating suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only premium-quality materials are chosen for our specialized precision-focused medical machining services. This rigorous validation process guarantees the utmost purity and integrity of materials, consistently aligning with and exceeding our elevated benchmarks of precision and quality.
Meticulous In-Process Quality Control: Striving for Unmatched Perfection
Throughout the complex machining journey, each component undergoes a meticulous inspection to ensure its dimensions and tolerances comply with our stringent specifications. Our rigorous inspection protocol remains vigilant, detecting any potential defects to halt the progression of non-conforming parts. This diligent methodology substantially reduces the risk of inferior products, ensuring that superior quality is meticulously upheld at every pivotal stage of production.
Proactive and Thorough First Article Inspection (FAI): A Preventative Framework for Excellence Beyond Compare
Our First Article Inspection (FAI) procedure is the keystone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach guarantees issues are addressed before mass production ensues, ensuring an uninterrupted flow of flawless production. Our comprehensive FAI process is crucial for minimizing quality risks, ensuring our products consistently meet the highest standards, and underscoring our steadfast commitment to excellence throughout the entire production lifecycle.
In-Depth Comprehensive Final Inspection: The Ultimate Judge of Quality
Before any product leaves our premises, it undergoes a thorough and meticulous final inspection. This detailed evaluation encompasses dimensions, visual appeal, performance, and personalized customer specifications. Our exhaustive inspection process is a testament to our unwavering dedication to quality, ensuring each dispatched item meets our strict standards, thereby delivering only the finest 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 glorious decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Our relentless pursuit of technical research and innovative solutions has firmly positioned us as industry pioneers, setting benchmarks of unparalleled excellence that inspire awe across the sector. 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. Our commitment to excellence ensures that we provide not only components but also peace of mind, enabling the healthcare industry to operate at the pinnacle of performance.
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. We pride ourselves on delivering not just products, but comprehensive solutions that drive progress and redefine industry standards.
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)