External Motor Sweep Auger
In adherence to China's GB17440 'Grain Processing, Storage, and Transportation System Dust Explosion-Proof Safety Regulations', silos are classified as a dust explosion-proof 20 zone environment. Consequently, electrical equipment within these silos must comply with strict dust explosion-proof 20 zone standards. Currently, most conventional sweep augers feature motors installed inside the silo, necessitating the use of such compliant motors. Unfortunately, both domestically and globally, dust explosion-proof 20 zone motors are unavailable. Companies are compelled to rely on sweep augers with motors rated for dust explosion-proof 21 zones, presenting inherent safety risks.
This issue highlights the critical need for innovative solutions to prevent safety hazards when installing electric motor-equipped machinery within silos, a pressing technical challenge for experts in this field.
The Hongrui research team proudly introduces an innovative solution: the external motor sweep auger. This cutting-edge design not only minimizes explosion risks but also maintains exceptional operational efficiency.
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
Established in 1996 along the picturesque coast of the Bohai Sea in Qinhuangdao, Hongrui Technology stands as a comprehensive high-tech company. With its strategic location offering easy access to transportation, our company has been a trailblazer in modern intelligent grain storage and logistics machinery for over two decades. A distinguished leader in the industry, Hongrui Technology is an integral part of the China Port Association's Silo and Bulk Grain Transportation Branch and the China Grain and Oil Association's Grain, Oil and Food Intelligent Equipment Branch. We are committed to driving innovation and excellence.
Since its inception, Hongrui Technology has embraced a philosophy centered on independent research and professional expertise, dedicated to advancing our intellectual property rights. Our R&D team boasts a wealth of technical expertise, underpinned by a profound technical foundation, having secured over 100 invention and utility model patents.
Our commitment to excellence is reflected in our certifications: ISO9001 for quality management, ISO14000 for environmental stewardship, ISO18000 for occupational health and safety, ECPSCS Product After-Sales Service, and CE certification. At Hongrui Technology, we relentlessly pursue innovation in the grain industry, tackling the most challenging issues in bulk material unloading, and delivering unmatched value and service to our customers.

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.