External Motor Sweep Auger
In strict adherence to GB17440's 'Grain processing, storage, and transportation system dust explosion-proof safety Regulations', Chinese silos are categorized as dust explosion-proof 20 zone environments. Consequently, electrical equipment within these silos must comply with the specified safety standards. Conventionally, sweep auger motors are housed inside silos, necessitating the use of motors certified for dust explosion-proof 20 zones. Unfortunately, such motors are unavailable both domestically and internationally, compelling many companies to resort to sweep augers with dust explosion-proof 21 zone motors, thus introducing potential safety risks.
The technical challenge of mitigating safety risks from equipment with electric motors installed inside silos has become a pressing concern for industry experts.
The innovative Hongrui research team presents a groundbreaking solution: the external motor sweep auger. This design not only mitigates explosion risks but also optimizes 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
Established in 1996 along the scenic Bohai Sea coast in Qinhuangdao, Hongrui Technology stands as a pioneering force in the realm of grain storage and logistics solutions, benefiting from an advantageous transportation network. As a high-tech and dedicated enterprise, Hongrui has been at the forefront of modern intelligent grain storage and logistics machinery for over two decades. We proudly serve as a director unit for the Silo and Bulk Grain Transportation Branch of the China Port Association and the Grain, Oil and Food Intelligent Equipment Branch under the China Grain and Oil Association's umbrella.
Since its inception, Hongrui Technology has championed independent research and a professional ethos, emphasizing the pursuit of proprietary intellectual property rights. Our R&D team, equipped with vast technical expertise, boasts over 100 patents in inventions and utility models, underscoring our commitment to innovation.
With certifications such as ISO9001 for quality management, ISO14000 for environmental management, ISO18000 for occupational health and safety, ECPSCS for after-sales service, and CE certification, Hongrui Technology relentlessly pioneers new dimensions in the grain industry. We courageously tackle the challenges of bulk material unloading, striving to deliver unmatched value and service excellence 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.