Eco Agitation System
Energy saving and cost reducing
Due to a lox drive output and a robust spur gear, the Eco Agitation System for our Eco-HK wood chip boilers is a highly efficient fuel extraction system. Save up to 67% of energy and further lower your electricity costs. The generous dimensions are suitable for G50 wood chips and the new wood chip inlet blade ensures optimal material supply. The Eco Agitation System is a robust, low maintenance and cost-effective addition to many of our biomass heating systems, meeting the high standards of Hargassner products.


- friction loss
- low efficiency

+ low friction loss
+ high efficiency
Lowest energy consumption

Up to 67% energy savings
Z-shaped bicameral rotary valve

100% burn-back protection
Modular system

Planning flexibility, from 400 to 2000 mm, easy transport and assembly
Eco-RA extraction system

Extremely robust, durable, failsafe, low maintenance
3 blade system

Special spring blade layout: up to Ø 4m
Power-saving gear ratio 1:16
4 blade system

Special spring blade layout: Ø 4,5 to 5 m
Power-saving gear ratio 1:25
Patented no load disc

Disc remains unmoved until springs are placed under the disc. Half the effort - no hollow space.
New wood chip inlet blade

Optimal material supply. More material in the auger shaft. Less force needed.
New conveying shaft and auger

No more material jam. Generous dimensions, suitable for G50 wood chips. Progressive incline of the auger shaft.