External Motor Sweep Auger
In accordance with GB17440 standards on 'Grain processing, storage, and transportation system dust explosion-proof safety regulations,' silos are classified within China's dust explosion-proof 20 zone environment. Consequently, the electrical equipment in silos must comply with these stringent safety protocols. Currently, most conventional sweep auger motors are installed inside silos, necessitating motors that meet the 20 zone explosion-proof criteria. However, such explosion-proof motors are currently unavailable both domestically and globally. As a result, many companies resort to using 21 zone dust explosion-proof motors, which introduces inherent safety risks.
This challenge has made it imperative to address the safety risks associated with placing equipment with electric motors inside silos, presenting a significant technical hurdle for industry experts.
The Hongrui research team has engineered an innovative solution: an external motor sweep auger that mitigates explosion risks while maintaining operational efficiency, providing safety and reliability.
Product Parameters
Main materials |
carbon steel |
Specifications |
Customized to the size of the grain silo |
Applicable working conditions |
Cleaning the remaining material at the bottom of a shallow round silo after the material (corn, soybeans, wheat, aluminum powder, rapeseed, etc.) finishes self-flowing. |
Applicable materials |
corn, soybean, wheat, rice, etc. |
Applicable silos |
Flat-bottom silo |
Applicable silo diameters |
12-36m |
Clearing capacity |
30-400tph |
Equipment advantages |
Reduce noise,Improve safety |
Our Advantages

Product Description

Company Profile
Liaoning Hongrui Technology Development Co., Ltd., established in 1996 along the scenic Bohai Sea coast in Qinhuangdao, boasts seamless transport links and stands as a comprehensive high-tech enterprise. With a specialization in modern intelligent grain storage and logistics machinery, Hongrui has been at the forefront for over two decades. As the director unit of both the Silo and Bulk Grain Transportation Branch of the China Port Association and the Grain, Oil, and Food Intelligent Equipment Branch of the China Grain and Oil Association, our expertise is unparalleled.
Since its inception, Hongrui Technology has championed independent research with steadfast dedication to a professional enterprise ethos, focusing on intellectual property rights. Our R&D team, rich in technical know-how and depth, has secured over 100 invention and utility model patents.
Hongrui Technology is ISO9001, ISO14000, and ISO18000 certified, with additional ECPSCS Product and CE certifications, underscoring our commitment to quality and safety. Driven by innovation, we continue to explore new frontiers in the grain industry, tackling challenges in bulk material unloading to deliver exceptional value through our products and services.

Packaging & Shipping
Certifications

FAQ
What are the applications of the sweeping equipment?
Our equipment can be used in flat-bottom silo, cone-bottom silo and grain shed silo, for unloading and sweeping the grain bulk materials such as wheat, corn, soybean, bran, soybean-meal, etc.
What kind of trade do you support?
EXW/FOB/CRF/CIF, other forms are available.
What is your installation and after - sales service policy?
We provide remote installation and after-sales service, as well as on-site installation and after-sales service by professional personnel.