Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is not just a responsibility; it is a passionate quest for the exquisite artistry and meticulous science of precision manufacturing. We are driven by an unwavering zeal for achieving flawlessness, elevating each component to the apex of craftsmanship and excellence, ensuring that every creation is a masterpiece in precision engineering. Our exceptional expertise radiates brilliantly in the domain of high-end component fabrication, setting new standards of precision and extraordinary excellence that chart a path of innovation and superior quality. Leading the charge in innovation, we specialize in engineering groundbreaking intelligent automation equipment. Our cutting-edge solutions adeptly serve a wide array of industries, precisely meeting a diverse range of application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Unrivaled Precision: Delivering meticulously crafted, ultra-high-precision components and avant-garde solutions for revolutionary medical devices, consistently maintaining the premium quality synonymous with our esteemed brand.
- Semiconductors: Catalyzing Technological Breakthroughs: Empowering the semiconductor sector with essential core components vital for chip manufacturing and associated equipment, ensuring smooth operations and fostering groundbreaking innovation.
- New Energy: Leading the Charge in Sustainable Innovation: Actively contributing to the sustainable enhancement of cutting-edge energy equipment, driving forward eco-friendly technological advancements.
- Automotive: Powering the Future of Mobility with Innovation: Supplying critical components that are pivotal in advancing innovation within the automotive industry, significantly contributing to the evolution of smart and electric vehicles.
Main Products: Mastery in Customization
- We excel in the art of crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and superior quality, ensuring that each product is tailored to perfection.
Why choose us
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Core Advantages
- A Fleet of Excellence Redefining Standards Our operations proudly showcase an extraordinary assortment of over 300 leading-edge renowned and trusted machines, each meticulously maintained and state-of-the-art,enabling us to masterfully address a comprehensive spectrum of equipment categories with supreme expertise. This unique capability empowers us to skillfully fulfill the intricate machining needs of diverse industries, ensuring unparalleled precision and efficiency that exceed expectations.
- With a legacy of excellence that spans over two decades, we harness our vast production expertise combined with outstanding technical prowess and in-depth process knowledge. Our unwavering commitment ensures not only superior quality but also innovative foresight, establishing us as true pioneers and leaders in the field of precision engineering.
State-of-the-Art Production Equipment for Optimal Performance
High-Precision Inspection Equipment Ensuring Impeccable Accuracy
Quality Ensurance
Exceptional Evaluation of Incoming Materials: A Testament to Quality
Every raw material that enters our distinguished facility is subject to a comprehensive and stringent evaluation process designed to uphold our extraordinary quality standards. This meticulous assessment includes a thorough analysis of chemical composition alongside a detailed inspection of physical properties. As part of our unwavering commitment to excellence, suppliers are required to provide both a Certificate of Origin and a duly stamped Declaration of Conformity. This ensures that only materials of exceptional integrity and purity are selected for our precision-driven medical machining needs. Our rigorous protocol is seamlessly aligned with our dedication to delivering unmatched quality, echoing our promise of perfection.
Meticulous In-Process Quality Control: Ensuring Precision at Every Step
In our state-of-the-art machining operations, every component is subjected to meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our strict specifications. Our diligent and continuous inspection protocol effectively identifies potential defects at an early stage, preventing non-conforming parts from advancing further in the process. This vigilant approach is essential in mitigating the risk of substandard goods, assuring superior quality at each stage, and maintaining excellence throughout the entire process. This demonstrates our unwavering commitment to quality and perfection.
Strategic and Proactive First Article Inspection (FAI): A Pillar of Quality Assurance
Our First Article Inspection (FAI) serves as a crucial strategic initiative that plays a pivotal role in the early identification and resolution of potential production issues. This proactive methodology ensures that any challenges are efficiently addressed before escalating into significant production concerns. The precision and comprehensiveness of our FAI significantly reduce quality risks, ensuring that our products consistently meet the highest industry standards. Our steadfast commitment to excellence permeates the entire production cycle, allowing us to consistently surpass even the most stringent quality benchmarks, thereby solidifying our reputation for superior quality.
Thorough and Exhaustive Final Inspection: The Last Line of Defense
Before products leave our esteemed facility, they are subjected to an exhaustive and rigorous final inspection process. This meticulous evaluation assesses dimensions, appearance, performance, and any customer-specific requirements. Our thorough inspections epitomize our relentless dedication to quality, ensuring that 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, thereby maintaining our sterling reputation for excellence and reliability in the industry.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. carries a profound heritage from 2002, standing as a beacon of excellence in high-precision component machining. For over two decades, our unwavering commitment to pioneering innovations has secured our position at the cutting edge of technical research, establishing us as leaders in the world of precision engineering. We have reached exceptional heights of technical excellence, solidifying our esteemed market presence and marking us as unparalleled leaders in the industry. Our unrivaled precision medical machining capabilities deliver incredibly tight tolerances and impeccable surface finishes, cementing our status as the foremost partner for the medical sector.
With four expertly positioned production bases situated in the vibrant hubs of Shenzhen and Guiyang, supported by a distinguished team of over 400 highly skilled professionals, Donghui has skillfully developed a comprehensive and vertically integrated industry ecosystem. This intricately connects research and development, production, and delivery, allowing us to consistently exceed our customers' diverse needs with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously designed to handle the most complex and challenging machining tasks, upholding our celebrated reputation for excellence and forward-thinking 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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