Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless dedication is not just a responsibility; it is an impassioned journey toward the extraordinary blend of art and science that defines precision manufacturing. Fueled by an unwavering pursuit of perfection, we transform every component into a masterpiece of unmatched excellence. Our unparalleled expertise redefines the realm of high-end component fabrication, leading the way to unrivaled precision and extraordinary excellence. As trailblazers in the creation and production of revolutionary intelligent automation equipment, our state-of-the-art solutions adeptly serve a myriad of industries, meeting diverse application needs with precision and efficacy, such as:
- Medical and Biotech: Elevating Healthcare with Precision: Delivering meticulously crafted, high-precision components and cutting-edge solutions for transformative medical devices, consistently upholding the exceptional quality standards synonymous with our brand of excellence.
- Semiconductors: Catalyzing Technological Advancements: Empowering the semiconductor industry with essential core components critical for chip production and related technology, ensuring smooth success and promoting innovation.
- New Energy: Leading the Charge in Sustainable Innovation: Actively engaging in the sustainable advancement of pioneering energy equipment, propelling eco-conscious technological innovations forward.
- Automotive: Fueling the Future of Mobility: Supplying essential components that drive innovation in the automotive sector, playing a crucial role in the development 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.
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.
- Boasting a rich heritage spanning two decades, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. harnesses extensive production expertise, seamlessly merged with remarkable technical and process acumen. Our unwavering commitment guarantees not only exceptional quality but also visionary innovation, firmly anchoring us as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Evaluation
Every raw material that graces our esteemed Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is meticulously subjected to an exhaustive and stringent evaluation process, ensuring it aligns with our superior standards of excellence. Our detailed assessments span an in-depth analysis of both the chemical composition and an exhaustive inspection of physical properties. We resolutely maintain our commitment to excellence by requiring every supplier to provide a Certificate of Origin and an officially stamped Declaration of Conformity. This exacting protocol guarantees that only materials of the utmost integrity and purity are selected for our specialized medical machining services. Our thorough authentication process seamlessly harmonizes with our unwavering dedication to delivering unparalleled quality.
Precision In-Process Quality Assurance
Throughout our advanced machining operations, every component undergoes rigorous scrutiny to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is expertly crafted to identify potential defects at an early stage, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is vital in mitigating the risk of substandard goods, thereby ensuring superior quality at each stage of production and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a foundational strategic initiative, crucial for the early identification and resolution of potential production challenges. This proactive methodology ensures that any issues are effectively addressed before they evolve into significant mass production concerns. The comprehensive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the zenith of industry standards. This unwavering commitment to excellence permeates every aspect of the production cycle, ensuring we not only meet but consistently exceed the most stringent quality benchmarks.
Exhaustive and Comprehensive Final Inspection
Before any product departs from our prestigious facility, it undergoes a thorough and comprehensive final inspection. This evaluation meticulously assesses dimensions, visual appearance, performance, and any specific customer requirements. Our detailed inspection process epitomizes our unwavering dedication to quality, ensuring every part dispatched from our facility meets our exacting standards. We remain steadfast in our mission to deliver only products of the highest caliber to our esteemed customers, upholding our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2009, with its illustrious origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ascended as a beacon of excellence in the domain of high-precision component machining. For more than two decades, our relentless dedication to groundbreaking innovation propels us to the forefront of technical research, establishing our reputation as trailblazers in the field of precision engineering. We have attained an extraordinary level of technical proficiency, solidifying a distinguished market presence and marking us as vanguards in the industry. Our unrivaled expertise in precision medical machining consistently delivers remarkably tight tolerances and flawless surface finishes, reinforcing our position as the preferred partner for the medical sector.
With four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by an exceptional team of over 400 highly skilled professionals, Donghui has meticulously constructed a comprehensive, vertically integrated industry chain. This sophisticated integration of research and development, production, and delivery enables us to surpass our customers' varied requirements with remarkable efficiency and unparalleled quality. Our avant-garde facilities are engineered with precision to manage the most intricate and challenging machining tasks, upholding our revered reputation for excellence and pioneering 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)
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