Different metering rollers are available for sow-
ing different grain sizes and seed quantities. The
rollers are selected according to the table in the
section entitled “calibration test”.
The metering rollers are classified according to
the output per revolution.
Rollers for all types of grain
Metering rollers
When working on the metering unit, it
must always be ensured that the com-
ponents are absolutely airtight. Leaks
lead to metering errors.
When assembling the metering unit,
the mating surfaces must be sealed,
and the housing must not be subject to
tension when being attached.
Metering unit
The HORSCH metering unit comprises of only a
few individual components and can be disman-
tled without tools.
Metering unit
Emptying outlet with rubber sealing strip
Housing
Drive motor
Side cover for pressurised hopper with scraper plate
Side cover for pressurised hopper with rape brushes
Side cover for standard tank with rape brushes
Roller
Side cover with roller bearing
1.
2.
3.
4.
5.
6.
7.
8.
No.
Size
cm³
Colour
Recess
ø mm
Depth
mm
No. of
reces-
ses
1
30
dark blue
20
9
16
2
40
red
22
10
16
3
70
black
20
10
32
4
100
blue
24
11
30
5
160
black
30
15
24
6
250
black
-
-
-
7
500
honey
-
-
-
8
800
metal
-
-
-
4
3
5
1
2
8
6
7
4
3
5
1
2
8
6
7
