External Motor Sweep Auger
In accordance with GB17440, which outlines the 'Grain Processing, Storage, and Transportation System Dust Explosion-Proof Safety Regulations', silos in China are classified within the dust explosion-proof Zone 20 environment. Consequently, all electrical apparatus within these silos must adhere to the stringent requirements of this safety zone. Currently, most sweep augers on the market have motors installed inside silos and must be fitted with Zone 20 explosion-proof motors as per regulations. Unfortunately, such motors are not available either domestically or internationally. Therefore, many enterprises resort to using sweep augers equipped with Zone 21 explosion-proof motors, which introduces certain safety risks.
Addressing the safety challenges associated with placing motorized equipment inside silos has become a pivotal technical issue for specialists in the field.
The Hongrui research team offers a cutting-edge solution with the innovative design of our external motor sweep auger. This model effectively mitigates explosion risks while maintaining 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 in Qinhuangdao along the scenic coast of the Bohai Sea, Hongrui Technology boasts excellent transport connectivity. As a comprehensive high-tech enterprise, we have dedicated over two decades to pioneering the field of modern intelligent grain storage and logistics machinery. Hongrui Technology is recognized as a leader, being a 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, underscoring our industry influence and commitment.
Since its inception, Hongrui Technology has championed independent research, embodying professional enterprise spirit, and is committed to securing independent intellectual property rights. Our R&D team, with a profound technical foundation, boasts over 100 invention and utility model patents, highlighting their vast expertise.
Certified under ISO9001, ISO14000, ISO18000, ECPSCS, and CE, Hongrui Technology steadfastly explores uncharted territories in the grain industry. We boldly tackle the complex challenges of bulk material unloading, striving tirelessly to offer customers 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.