External Motor Sweep Auger
In alignment with the standards set forth by GB17440, detailing the "Grain Processing, Storage, and Transportation System Dust Explosion-Proof Safety Regulations," silos are designated as dust explosion-proof Zone 20 environments in China. This classification mandates that any electrical equipment within these silos must adhere to the stringent requirements designed for Zone 20 environments. Currently, the majority of conventional sweep auger motors on the market are installed inside the silo, necessitating the use of dust explosion-proof Zone 20 motors in compliance with these regulations. However, there is a notable absence of suitable Zone 20 motor products both domestically and internationally. Consequently, many companies resort to employing sweep augers equipped with dust explosion-proof Zone 21 motors, thereby incurring potential safety risks.
Addressing the safety challenges associated with placing equipment outfitted with electric motors inside silos has emerged as a critical technical issue for experts in this domain.
The innovative research team at Hongrui Technology has developed a groundbreaking solution with the design of the external motor sweep auger. This pioneering product not only mitigates explosion risks but also ensures operational efficiency, setting a new standard in safety and performance.
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
Founded in 1996 at the picturesque coastal city of Qinhuangdao by the Bohai Sea, Hongrui Technology benefits from excellent transportation links. The company stands as a comprehensive high-tech enterprise, deeply rooted in the innovative fields of modern intelligent grain storage and logistics machinery, boasting over two decades of dedicated industry involvement. As a specialized enterprise, Hongrui Technology holds a prestigious position 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.
Since our inception, Hongrui Technology has steadfastly committed to independent research and the spirit of professionalism. With a focus on securing independent intellectual property rights, our R&D team possesses extensive technical expertise and a substantial technical foundation, successfully acquiring over 100 invention and utility model patents.
Hongrui Technology is a proud holder of multiple certifications, including ISO9001 Quality Management System, ISO14000 Environmental Management System, ISO18000 Occupational Health and Safety Management System, ECPSCS Product After-Sales Service System, and CE Certification. Our relentless exploration into the grain industry's uncharted territories and our bold approach to solving the challenges of bulk material unloading underscore our commitment to delivering unparalleled value to our customers with top-notch 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.