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.

Worm gear

- friction loss

- low efficiency

Spur gear

+ 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.