Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation; it is a passionate pursuit of exquisite precision and meticulous craftsmanship that defines our manufacturing ethos. With an unwavering commitment to flawlessness, we elevate each component to the zenith of artistry and excellence. Our unrivaled mastery illuminates the sphere of high-end component fabrication, forging a path to unparalleled precision and extraordinary excellence, setting new benchmarks in the industry. Leading the helm of innovation, we excel in engineering revolutionary intelligent automation equipment. Our cutting-edge solutions expertly cater to a multitude of industries, precisely addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with PrecisionDelivering meticulously engineered, high-precision components and pioneering solutions for groundbreaking medical devices, we consistently uphold the premium quality standards synonymous with our brand's legacy.
- Semiconductors: Driving Technological BreakthroughsEmpowering the semiconductor industry with essential core components vital for chip production and related equipment, ensuring seamless operations and fostering groundbreaking innovation.
- New Energy: Pioneering the Path to Sustainable InnovationVigorously engaging in the sustainable evolution of innovative energy equipment, we propel eco-friendly technological advancements, paving the way for a sustainable future.
- Automotive: Energizing the Future of MobilityDelivering critical components that drive innovation in the automotive sector, we play a pivotal role in the advancement of smart and electric vehicles.
Main Products: Expertise in Customization
- We excel in crafting bespoke, non-standard customized components, extensively servicing the medical, automation, semiconductor, and automotive industries with unmatched precision and superior quality.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, setting new standards of excellence in every project we undertake.
- With a legacy of excellence that spans over two decades, we harness our vast production expertise combined with outstanding technical prowess and process knowledge. Our unwavering commitment ensures not only superior quality but also innovative foresight, establishing us as pioneers in the field of precision engineering. Our reputation for excellence is reinforced by our dedication to pushing the boundaries of what's possible in precision machining, delivering results that consistently exceed expectations.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Evaluation
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material arriving at our esteemed facility is subjected to a rigorous and thorough evaluation process, designed to adhere to our unparalleled quality criteria. This meticulous scrutiny involves a comprehensive analysis of the chemical composition and a detailed inspection of the physical properties. In line with our unwavering commitment to excellence, we mandate that our suppliers furnish a Certificate of Origin alongside a duly stamped Declaration of Conformity. This ensures that only materials of the highest integrity and purity are selected for our precision-focused medical machining. Our stringent protocols are seamlessly aligned with our devotion to delivering extraordinary quality, consistently fulfilling our promise of perfection.
Meticulous In-Process Quality Control
Within our cutting-edge machining operations, each component is subjected to meticulous examination to guarantee that dimensions and tolerances not only meet but surpass our exacting specifications. Our diligent and continuous inspection process is pivotal in identifying potential defects at an early stage, preventing non-conforming parts from progressing in the production line. This vigilant approach is essential in mitigating the risk of subpar products, ensuring premium quality at every phase and maintaining our standard of excellence throughout the process, thereby reflecting our unwavering dedication to superior quality assurance.
Strategic and Proactive First Article Inspection (FAI)
Our strategic approach to First Article Inspection (FAI) plays a crucial role in the early detection and resolution of potential production challenges. This proactive strategy ensures issues are efficiently addressed before they escalate into significant production hurdles. The meticulous precision of our FAI significantly reduces quality risks, ensuring that products consistently uphold the highest industry standards. Our unwavering commitment to excellence permeates the entire production cycle, consistently enabling us to exceed even the most stringent quality benchmarks, and reinforcing our reputation for delivering superior quality.
Thorough and Comprehensive Final Inspection
Before any product departs from our esteemed facility, it undergoes an exhaustive and rigorous final inspection. This comprehensive process meticulously evaluates the dimensions, appearance, performance, and customer-specific requirements. Our thorough inspection procedures exemplify our unwavering dedication to quality, ensuring that every dispatched part conforms to our exacting standards. Our steadfast commitment to delivering only the highest-caliber products to our valued customers underscores our renowned reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, and with roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands tall as a radiant beacon of excellence in the realm of high-precision component machining. For over two decades, our unwavering dedication to pioneering innovations has catapulted us to the zenith of technical research, cementing our status as vanguards in the precision engineering landscape. We have surged to an unparalleled level of technical mastery that reinforces a distinguished market stature, identifying us as the undisputed leaders in the field. Our unparalleled proficiency in precision medical machining guarantees the achievement of remarkably tight tolerances and impeccable surface finishes, securing our position as the foremost partner for the medical industry.
With four strategically situated production bases located in the bustling hubs of Shenzhen and Guiyang, supported by an elite team of over 400 highly skilled professionals, Donghui has expertly crafted a comprehensive and vertically integrated industry chain. This flawlessly intertwines research and development, production, and delivery, enabling us to not only meet but consistently exceed our customers' diverse requirements with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and demanding machining tasks, preserving our esteemed 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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