Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately dedicated to achieving unsurpassed excellence, transforming our craftsmanship into a true art form. Our unwavering pursuit of perfection propels us to excel in the intricate art of precision, while pioneering the science of manufacturing innovation. Our expertise radiates as a guiding light of unparalleled precision, leading the way in the esteemed domain of high-end component manufacturing. At the cutting edge of innovation, we set the benchmark in the design and engineering of revolutionary intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a wide range of industries, skillfully meeting a diverse array of needs with precision applications, including:
- Medical and Biotech: We craft precisely engineered, highly accurate components and pioneering solutions tailored to shape the future of medical technology, ensuring the highest standards of quality and innovation.
- Semiconductors: We elevate chip production and the essential related equipment through indispensable core components, ensuring precision and reliability in every detail.
- New Energy: We are instrumental in the sustainable evolution of innovative energy equipment, playing a vital role in driving forward the future of energy technology.
- Automotive: We supply critical components that spur innovation within the automotive industry, supporting the growth of intelligent and electric vehicles with cutting-edge technology.
Main Products
- Exquisitely crafted non-standard customized components, distinguished in serving key sectors such as the medical, automation, semiconductor, and automotive industries with exceptional precision and excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: The Epitome of Industrial Mastery Our operations are powered by an extraordinary assembly of over 300 of the industry's most sophisticated machinery units. This elite collection is a testament to our commitment to maintaining a vast, dynamic array of equipment categories, ensuring we lead in innovation and adaptability across diverse industrial landscapes. These premium branded machinery units form the core of our precision-driven manufacturing capabilities. Empowering us to tackle the multifaceted and challenging machining demands with exceptional precision and remarkable efficiency, our expansive capabilities uphold the highest quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique aspirations of our distinguished clientele, continually exceeding their expectations with every endeavor.
- With a prestigious 20-year legacy, we possess an extensive reservoir of manufacturing experience, intricately 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, establishing new benchmarks in industry excellence.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Excellence
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Unwavering Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Crafting Precision Beyond Standard Norms
Situated within our state-of-the-art warehouse, each raw material undergoes comprehensive and rigorous scrutiny, establishing a new benchmark in quality assurance excellence. Our detailed process includes extensive analysis of chemical compositions paired with meticulous physical characteristic examinations. We strictly require our suppliers to furnish a Certificate of Origin and a stamped Declaration of Conformity. This rigorous selection ensures only premium materials are chosen for our precision-driven medical machining services. This meticulous validation process guarantees that the purity and integrity of materials not only meet but consistently exceed our high standards for precision and quality, setting a new standard for excellence.
Rigorous In-Process Quality Control: The Relentless Pursuit of Manufacturing Perfection
During the complex machining process, each component is subject to meticulous inspection to verify that dimensions and tolerances align with our stringent specifications. Our vigilant inspection protocol is constantly active, pinpointing any potential imperfections to prevent non-conforming parts from progressing. This diligent vigilance significantly reduces the risk of substandard products, ensuring that exceptional quality is rigorously maintained at every vital stage of production, embodying our relentless dedication to excellence.
Proactive and Comprehensive First Article Inspection (FAI): A Cornerstone of Unmatched Excellence
Our First Article Inspection (FAI) protocol is the cornerstone of our quality strategy, skillfully identifying and resolving potential production challenges at the very start. This proactive methodology ensures issues are tackled before moving to mass production, securing a seamless flow of flawless manufacturing. Our extensive FAI process is crucial for minimizing quality risks, assuring that our products continuously adhere to the highest standards, reflecting our steadfast commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Definitive Guardian of Quality
Before any product departs our facility, it undergoes a detailed and exhaustive final inspection. This comprehensive evaluation scrutinizes dimensions, visual appeal, performance, and specific customer requirements. Our thorough inspection process is a testament to our unwavering dedication to quality, ensuring each product dispatched adheres strictly to our high standards, thereby delivering only top-tier products to our honored and valued clientele.
Packaging & Shipping
Company Profile
Since its esteemed inception in 2009, tracing its visionary roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has whole-heartedly embraced the mastery of high-precision component machining. Over the past two decades, our unyielding pursuit of innovation and excellence has propelled us to the forefront of precision engineering. Through relentless technical exploration and pioneering solutions, we have positioned ourselves as industry leaders, setting benchmarks with unrivaled excellence. Our company prides itself on an extraordinary wealth of technical expertise, establishing ourselves as market leaders renowned for unmatched excellence. Our exceptional proficiency in precision medical machining services not only achieves the most exacting tolerances but also delivers impeccable surface finishes. This expertise positions us as the premier choice within the medical sector, where our precision and dependability are highly valued and indispensable by healthcare professionals and industry specialists.
With four strategically positioned production bases, situated in the vibrant innovation centers of Shenzhen and Guiyang, and driven by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously engineered a robust, vertically integrated industry chain. This seamless integration of research and development, production, and delivery empowers us to consistently fulfill and surpass the diverse demands of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are equipped to undertake the most intricate and challenging machining projects, reinforcing 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)