Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond duty; it's a fervent pursuit of the exquisite craftsmanship and intricate science that define precision manufacturing. Fueled by an endless drive for perfection, we elevate every component into a testament of unmatched artistry and superior quality. Our unmatched proficiency sets a new standard in the realm of high-end component fabrication, charting a course towards unparalleled precision and remarkable excellence. At the cutting edge of innovation, we are leaders in designing and manufacturing transformative intelligent automation equipment. Our pioneering solutions span multiple industries, delivering precision and efficiency tailored to diverse application demands, including:
- Medical and Biotech: Innovating Healthcare with Precision: Crafting expertly designed, precision-engineered components and advanced solutions for groundbreaking medical devices, consistently upholding the premium quality synonymous with our excellence.
- Semiconductors: Accelerating Technological Progress: Supporting the semiconductor industry with essential core components critical for chip manufacturing and associated equipment, ensuring flawless performance and sparking innovation.
- New Energy: Pioneering Sustainable Progress: Actively contributing to the sustainable evolution of innovative energy equipment, propelling eco-friendly technological advancements.
- Automotive: Advancing the Future of Transportation: Supplying critical components that fuel advancements in the automotive industry, playing a pivotal role in the development of smart and electric vehicles.
Main Products: Expertise in Customization
- We specialize in crafting tailored, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors with exceptional precision and top-tier 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 world-renowned state-of-the-art 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, delivering unparalleled precision, efficiency, and reliability.
- With a rich heritage spanning two decades, we harness our extensive production expertise, seamlessly merged with exceptional technical and process acumen. Our unwavering commitment guarantees not only superior quality but also groundbreaking innovation. This dedication firmly establishes us as pioneers in the realm of precision engineering, setting new standards and pushing boundaries.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Superior Incoming Material Evaluation
Every raw material entering our esteemed facility is meticulously subjected to a comprehensive and stringent evaluation, ensuring it meets our extraordinary standards of quality. Our scrupulous assessments involve an in-depth analysis of chemical composition and a detailed inspection of physical properties. We steadfastly guarantee excellence by requiring each supplier to offer a Certificate of Origin and a duly stamped Declaration of Conformity. This rigorous protocol ensures that only materials of the highest integrity and purity are selected for our precision-driven medical machining services. Our exacting authentication process perfectly aligns with our commitment to delivering exceptional quality.
Meticulous In-Process Quality Assurance
Throughout our sophisticated machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection protocol expertly identifies potential defects early, effectively preventing non-conforming parts from advancing further. This vigilant approach is crucial in mitigating substandard goods, thereby guaranteeing superior quality at every production stage and upholding excellence throughout the entire process.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a vital strategic initiative for the early identification and resolution of potential production issues. This proactive methodology ensures any challenges are efficiently addressed before escalating into significant mass production concerns. The comprehensive and precise nature of our FAI process is essential in reducing quality risks, ensuring our products consistently achieve the pinnacle of industry standards. This unwavering commitment to excellence permeates every facet of the production cycle, ensuring that we not only meet but consistently surpass the most stringent quality benchmarks.
Comprehensive and Rigorous Final Inspection
Before any product departs our esteemed facility, it undergoes an exhaustive and rigorous final inspection. This meticulous evaluation process assesses dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection process epitomizes our relentless dedication to quality, ensuring every part dispatched from our facility adheres to our exacting standards. We remain steadfast in our mission to deliver only products of the highest caliber to our valued customers, upholding our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2009, yet with a heritage reaching as far back as 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon in the world of high-precision component machining. For more than two decades, our steadfast dedication to cutting-edge innovation propels us to the forefront of technical research, fortifying our role as trailblazers in the realm of precision engineering. We have attained an exceptional degree of technical proficiency that reinforces our prestigious market leadership, distinguishing us as frontrunners in the industry. Our unrivaled expertise in precision medical machining consistently delivers remarkably tight tolerances and flawless surface finishes, establishing us as the preferred partner for the medical sector.
With four strategically positioned production bases within the bustling centers of Shenzhen and Guiyang, and bolstered by a distinguished team of over 400 highly skilled professionals, Donghui has meticulously constructed a comprehensive and vertically integrated industry chain. This seamlessly blends research and development, production, and delivery, empowering us to surpass our customers' diverse needs with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously designed to tackle the most complex and demanding machining tasks, preserving our esteemed reputation for excellence and innovation at the forefront of the industry.
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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