Pellets storage systems

Pellet
Bag Silo

Bag Silo GWTS & GWT MAX

The bag silo represents a ready-made storage space solution made of high-quality and dustproof separator fabric with a steel pipe frame, where the air escapes through the filter fabric. Hargassner offers a range of different types and sizes of bag silos for pellets – from 2 to 8.2 t storage capacity.
You choose between a fixed (GWTS) or “growing” (GWT-MAX) solution.

Pellet bag silos can be placed in boiler rooms (depending on building regulations), adjoining rooms and buildings. If it is installed outdoors, it must be placed on a surface that is guaranteed to remain stable and also given an all-over casing that protects it from UV radiation and moisture.

MAXimum volume up to 7.6 tons, MAXimum space utilization, MAXimum operational safety
=> with minimum space requirement

Pellet boiler with bag silo GWT-MAX

For storage capacities of 2.9-8.2 t pellets

The “growing” GWT-MAX bag silo has an elastic base element with tension springs. If it is filled, the base suspension elements at the side drop due to the weight of the pellets. This enables the silo to be filled to a maximum. If the silo is emptied, the base is pulled upwards. This ultimately creates a four-sided sloping floor for complete emptying. If required, several bag silos can also be connected together with a changeover unit.

Pelletsanlage mit Gewebetank GWT-MAX | Hargassner

Pellet system with bag silo GWTS

For storage capacities from 2–6,5 t

The stable GWTS bag silo is equipped with point extraction. The four-sided sloping floor guarantees complete emptying. If required, several bag silos can also be connected together with a changeover unit.

Pelletsanlage mit Gewebetank GWTS | Hargassner

Flood protection cover for GWT-MAX

Our flood protection cover is effective against both floods and groundwater up to a height of approx. 1.5 m. This water-repellent cover is available for all GWT-MAX types and can be retrofitted at any time. The cover is mounted on the underside of the bag silo in the unfilled state and fastened to the tension springs.

Pellet Gewebetank Hochwasserschutzfolie | Hargassner

Your benefits

Advantages of a bag silo

Minimum space requirements
Quick and easy to install
Existing room, can be used without conversion measures (electricity, water etc.)
Dust-tight, durable and antistatic filter fabric
Pellets are protected against condensation

Up to 20 m distance between storage & boiler room
When using steel pipes instead of the
suction hose up to 30 m
Flood protection cover optional
Outdoor installation possible

Steel suction tube system for pellets

Expert tip on the bag silo

For suction line lengths over 20 m, we recommend an installation with steel pipe systems instead of a pellet suction hose. This increases the maximum suction length by another 10 m, so distances up to 30 m can be achieved.

Technical Data

Type	Volume	Width	Depth	Height
GWT MAX 160 x 200	2,9 – 3,8 t	168 cm	208 cm	195-250 cm
GWT MAX 200 x 200	3,6 – 5,0 t	208 cm	208 cm	195-250 cm
GWT MAX 160 x 250	3,6 – 5,0 t	168 cm	258 cm	195-250 cm
GWT MAX 200 x 250	4,4 – 6,0 t	208 cm	258 cm	195-250 cm
GWT MAX 250 x 250	5,6 – 7,6 t	258 cm	258 cm	195-250 cm
GWT MAX 250 x 250 XL	8,2 t	258 cm	258 cm	280 cm
GWTS 160 x 160	2,0 – 2,5 t	168 cm	168 cm	195-250 cm
GWTS 200 x 200	3,1 – 3,8 t	208 cm	208 cm	195-250 cm
GWTS 200 x 250	3,7 – 4,6 t	208 cm	258 cm	195-250 cm
GWTS 250 x 250	4,4 – 5,7 t	258 cm	258 cm	195-250 cm
GWTS 250 x 250 XL	6,5 t	258 cm	258 cm	280 cm