Page 2 - Hydraulic Rotor.ppp

New Hydraulic Rotor System for difficult non free flowing

bulk material with hydraulic adjustable working of the

massive steel arms

Advantages of this system:
● Working pressure (pre-tension) of arm activation is adjustable by
varying the hydraulic pressure (dependent upon the bulk
material). Pressure adjustment is possible at any time from the
outside.
● The rotor arms are made of solid material and are 100% reliable
over the operating time and maintenance-free. All parts working in
the bunker are robust and without hooks and claws.
● The discharge devices are extremely reliable and are characterized
by low energy consumption and maintenance.
● Thanks to the patented Saxlund design, no hydraulic oil can get
into the product.

Functional principle:
First the rotor is set rotating by a planetary gear drive unit (0,5–3 min-1)
whereby the rotor arms, in order to keep the starting moment low, first
remain pressure-free.
After some seconds the rotor arms are driven out hydraulically and
brought to the working pressure. The rotor arms then cut their way
through the material towards the bunker wall. They bring the loosened
material over the discharge openings, fall chutes or other discharging
devices in the bunker floor.

This action causes the column of material in the bunker to be broken
down and slides Through. If the resistance of the material is temporarily
greater than the set working pressure, the rotor arms can retract as
necessary under the control of the pressure limit valve. A mechanical
overload is excluded.