Machine Description
75
5.7 Cutting Drum Unit
In the chopper unit the crops are cut to a set chop length.
Design
The chopping drum unit consists of a cutting drum housing in which the chopping drum is
mounted.
The chopping drum is a closed cylindrical body, on which the chopping blades are arranged in a
V-shape. Each chopping blade is screwed to the chopping drum with three hexagon head
screws.
Fig. 26
Drum base
The base of the chopper unit can be adjusted to optimise the crop flow and is spring-mounted
so that it can move downward when material accumulates in the crop flow.
Cutting blades
The chopping blade (1) is available in two versions: Grass and maize blades, which differ in
terms of blade geometry.
The chopping blades can be adjusted to the counterblade and replaced using the fastening
screws.
Counterblade
The counterblade (2) is available in two versions, which differ in terms of the type of overlay
welding/geometry.
The counterblade can be adjusted with the grinding control unit at the front left of the machine.
Cutting length
By means of the chopping drum, the crops are cut to a defined value.
The chop length depends on the number of cutting blades on the chopping drum and the intake
speed.
VariLOC gearbox
Optionally, a VariLOC gearbox can be mounted on the machine to extend the possible cutting
length range.
The VariLOC gearbox is only approved for the chopping drums MaxFlow
28
und MaxFlow
36
with complete set of blades in the maize.
Grinding device
The grinding device grinds the chopping blades of the chopping drum using a grinding stone
which is moved back and forth by the rotating chopping drum. The grinding stone is readjusted
automatically with every grinding cycle.
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