Classification & Storage / Dry unloading system

Dust-free discharging

Kopar’s dry unloading system assures an entirely automated, steady and dust-free unloading.

Interested? Contact:
Niemensivu Jussi

Jussi Niemensivu

Engineering Manager

+358 50 387 0189‬

Fine-graded bulky materials are typically stored in feeding, intermediate, end or other silos. From the silos, the granular material can be conveyed mechanically or pneumatically at the site or unloaded into trucks for transportation and usage at other destinations. 

Most of the bulky materials stored in silos are dry and, thus, dusty. Due to health, safety, and environmental issues, their handling must be dust-free. This is where our dry unloading system comes in handy.

The dry material is removed from the silo into a tank truck/closed container, which transports the material to another destination for later use. A sealed system allows completely dust-free handling. 

Suitable usage cases of our dry unloading system

  • All ashes – bottom ash, fly ash, filter ash, dusts
  • Minerals like calcite, lime, magnesite
  • Agricultural products like potato starch

Technical specifications of the dry unloading system

Unloading capacity ranges up to (m3/h)


2. fakta

3. fakta

Designed for effortless use

Closed system design

Compared to our wet unloading system, dry unloading offers a closed solution to prevent any dusting. The system typically consists of: 

  • fluidized silo bottom
  • manual service slide gate
  • pneumatic knife gate valve
  • rotary feeder
  • motor-driven flexible loading chute/dust free loading sprout.
Kopar service and maintenance

Easy operation

The entire dry unloading system is designed in-house at Kopar. As the system is fully automated and operated remotely with a control system, the tank truck driver can handle the removal operation alone.

Safe unloading

Dust removal from the bellows is done directly to the silo filter, in which case a separate filter in the loading bellows is not needed. Dust-free operation ensures the safety of the user.

Kopar Service Manager

You have a challenge that needs solving?

Let us help! Contact us for more information about our products and services.