Classification & Storage

Storage silos

Kopar engineers and delivers material storage silos in volumes up 2000 m3 together with all necessary loading and unloading accessories. Each silo is CE-marked according to EN1090-1 and Kopar is able to deliver silos and steel structures up to execution class 4.

We have over 40 years of experience about different materials and their characteristics which guarantees that we can engineer right storage solution even for the most difficult bulk materials.

Standard sizes:
20 m3
30 m3
60 m3
100 m3
150 m3
200 m3
300 m3
500 m3
1000 m3
2000 m3


EMJET – silo filters

Proper silo filtration is essential to guarantee trouble free operation both when filling the storage silo and when unloading it. Kopar has a specially designed heavy-duty filter family designed for the pneumatic conveying solutions where amount of air to be vented from the silo can vary a lot momentarily which sets high demands for the filter.

Kopar solution is to use bag house filter with pulsed air cleaning system which is automated and operates usually based on the pressure difference over the filter bags. Filter bags are designed to be easily changeable and they can be provided in several materials depending on the application. Filters can also be trace heated and insulated if necessary.

Standard sizes:
EMJET 10 (m2)
Larger sizes on request


Dry unloading system

When material needs to be unloaded from the storage silo into the tank truck, Kopar steady feeding and dust free unloading system is excellent solution. Main components of the Kopar system are fluidized silo bottom, rotary feeder and dust free loading spout. Whole system is automated and truck driver can easily operate it with remote control.

Loading capacity:
75 m3/h
100 m3/h


Wet unloading system

When material is fed from the storage silo into an open pit truck there is always a problem with dusting and consequently, air pollution in the loading area and during the transportation. In order to avoid dusting, material needs to be wetted to an appropriate moisture level.

Main component in our solution is the wetting screw which is a double spiral paddle mixer with regulated water spraying system. Other parts of the system are fluidized silo bottom and rotary feeder. Entire system is automated so that the truck driver can easily remotely operate the system.

Loading capacity:
75 m3/h
100 m3/h


Rotor and roll crushers

There are two main types of crushers in the Kopar product range. The rotor crushers are usually used in first stage acting as a pre-crusher followed by the roll crusher used for the primary crushing stage producing the needed end-product.

Kopar crushers are suitable in crushing materials that are cloddy or lumpy but still relatively easily degradable to make them suitable for further processing. Typical materials to be crushed are for example waste heat boiler slag, dust lumps and bottom ash.

Maximum capacity varies depending on the material characteristics. For detailed information for your needs, please contact us!

Rotor crushers
Capacity: 0-60 t/h (typical)
Standard models:
KRRC 600, one or two stages
KRRC 800, one or two stages
KRRC 1200, one or two stages
Particle size in max: 250 mm (typical)
Particle out: 25-10 mm (typical)

Roll crushers
Capacity: 0-60 t/h (typical)

Particle size in max: 30 mm (typical)
Particle out: 20 to 3 mm (typical)
Standard models:
KRLC 600

KRLC 800
Particle size in: 30 mm (typical)
Particle out: 20 to 3 mm (typical)


Drum screens

Kopar has a reliable and compact solution for screen sand from the bottom ash stream which is then to be circulated back to the power boiler. As the fuels burned in boilers contains more and more impurities challenges are generated for the bottom ash screening. Therefore, Kopar has put focus in developing robust easy operational equipment which is simple to maintain.

Combination of both mechanical and pneumatic cleaning together with unique screen drum changing method, Kopar drum screen is well suited for challenging conditions.


Rotary valves and feeders

Rotary valves and feeders are critical equipment in many processes through various heavy industries. Function of the rotary feeder can be dosing, material flow controlling, or they can act as an airlock to prevent process disturbances caused by unwanted air flows.

Kopar rotary feeders are well known in heavy industries with hundreds of functional installations. Kopar equipment has especially been granted about being very tight both outwards from the process but also inwards. Steady dosing capacities can be achieved ranging from tens of litres to hundreds of tons per hour, depending on your needs and the application.

Capacity: 0-300 t/h (typical)

Operational temperature: up to 300 degrees (typical)

Standard sizes:
Rotary valves
RV 200-200
RV 250-300
RV 300-300
RV 300-350
RV 380-350
RV 400-450
Rotary feeders


Contact us for more information