Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not merely a responsibility; it is a passionate quest for the harmonious blend of exquisite artistry and the meticulous science inherent in precision manufacturing. Driven by an unyielding passion for perfection, we elevate each component to the zenith of craftsmanship and excellence. Our unmatched expertise illuminates the domain of high-end component fabrication, pioneering a path to unsurpassed precision and remarkable excellence. Leading the charge in innovation, we specialize in developing revolutionary intelligent automation equipment. Our cutting-edge solutions masterfully cater to a diverse array of industries, precisely addressing varied application requirements, including:
- Medical and Biotech: Transforming Healthcare with Precision: Delivering meticulously engineered, high-precision components and advanced solutions for pioneering medical devices, consistently maintaining the high-quality standards synonymous with our brand.
- Semiconductors: Catalyzing Technological Advancements: Empowering the semiconductor industry with critical core components essential for chip production and associated equipment, ensuring seamless operations and fostering innovation.
- New Energy: Leading the Charge Toward Sustainable Innovation: Actively contributing to the sustainable progression of innovative energy equipment, driving eco-friendly technological advancements.
- Automotive: Powering the Future of Mobility: Delivering vital components that energize innovation within the automotive industry, playing a pivotal role in the evolution of smart and electric vehicles.
Main Products: Mastery in Customization
- We excel in creating bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors with unparalleled precision and exceptional quality.
Why choose us
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Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, empowering us to masterfully address a comprehensive spectrum of equipment categories. This capability allows us to adeptly fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring each project is executed to perfection.
- With a legacy of excellence spanning over two decades, we leverage our vast production expertise seamlessly intertwined with outstanding technical prowess and process knowledge. Our unwavering commitment ensures not only superior quality but also innovative foresight, forging our position as trailblazers in the field of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Evaluation
Every raw material entering our distinguished facility undergoes a comprehensive, stringent evaluation to meet our extraordinary quality standards. Our meticulous evaluations involve in-depth analysis of chemical composition and detailed inspection of physical properties. Upholding our commitment to excellence, we require suppliers to provide a Certificate of Origin and a duly stamped Declaration of Conformity, ensuring only materials of exceptional integrity and purity are chosen for our precision-driven medical machining. This rigorous protocol aligns seamlessly with our dedication to delivering unmatchable quality, echoing our promise of perfection.
Meticulous In-Process Quality Control
In our advanced machining operations, every component undergoes meticulous scrutiny to ensure dimensions and tolerances exceed our strict specifications. Our diligent, continuous inspection protocol effectively identifies potential defects early, preventing non-conforming parts from advancing further. This vigilant approach is vital in reducing the risk of substandard goods, ensuring superior quality at each stage and maintaining excellence throughout the process, demonstrating our unwavering commitment to quality.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a crucial strategic initiative pivotal for early identification and resolution of potential production issues. This proactive methodology ensures challenges are efficiently addressed before escalating into significant production concerns. The comprehensive precision of our FAI reduces quality risks, ensuring products consistently meet top industry standards. This commitment to excellence pervades the entire production cycle, ensuring we consistently surpass even the most stringent quality benchmarks, solidifying our reputation for superior quality.
Thorough and Exhaustive Final Inspection
Before products leave our esteemed facility, they undergo exhaustive, rigorous final inspection. This process meticulously evaluates dimensions, appearance, performance, and customer-specific requirements. Our thorough inspections epitomize our relentless dedication to quality, ensuring every part dispatched adheres to our exacting standards. We are steadfast in our mission to deliver only the highest-caliber products to our valued customers, maintaining our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is a hallmark of excellence in high-precision component machining, thriving since its roots in 2002. For over two decades, our unwavering commitment to cutting-edge innovation has catapulted us to the pinnacle of technical advancement, solidifying our status as pioneers in the precision engineering landscape. We have elevated our technical mastery to unprecedented heights, reinforcing our esteemed market reputation and distinguishing us as indisputable leaders in the industry. Our unrivaled proficiency in precision medical machining guarantees the achievement of incredibly tight tolerances and impeccable surface finishes, firmly positioning us as the medical sector's preferred partner.
With four strategically positioned production facilities situated in the bustling hubs of Shenzhen and Guiyang, supported by a premier team of over 400 highly skilled professionals, Donghui has expertly developed a comprehensive and vertically integrated industry chain. This seamlessly integrates research and development, production, and delivery, empowering us to not just meet but consistently exceed our customers' diverse demands with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously designed to address the most complex and challenging machining tasks, maintaining our celebrated reputation for excellence and innovative leadership.
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)
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