O&K Excavators

The table below shows drum cutters and motor sizes recommended for each excavator, depending on whether one or two pump flow is available.
Model Engine
power
Operating
weight
Oil flow Recom.
cutter
Recom. motor
displacement
Recom. motor
displacement
  kW t l/min ER series One pump
flow
Double pump
flow

Double pump flow is not always available on excavators as standard.  In some cases, modifications are required to obtain double pump flow.  If you are unsure of the hydraulic flow available, contact your local excavator dealer.

Erkat cannot guarantee that the information contained on this page is correct or be held responsible for the consequences of any actions that may arise through the use of this information.

Model Engine
power
Operating
weight
Oil flow Recom.
cutter
Recom. motor
displacement
Recom. motor
displacement
RH 1.17 13.3 1.7 2x19.2 ER 50 - 2
RH 1.21 13.3 2.0 2x21.6 ER 50 1 3
RH 1.29 20.5 2.9 2x38 ER 100 1 3
RH 1.35 26.5 3.5 2x43 ER 50 4 4
        ER 100 2 4
RH 1.48 34.6 4.5 2x57 ER 100 4 4
MH 2.5 53 9.0 150 + 50 ER 250 4 -
MH 4.5 61 14.0 2x124 ER 600 1 2
MH City 61 15.0 2x126 ER 600 1 2
        ER 650 - 2
RH City 61 16.0 2x126 ER 600 1 2
        ER 650 - 2
RH 4.5 63 15.0 2x121 ER 600 1 2
        ER 650 1 3
MH 3.5 67 12.0 150 + 53 ER 250 4 -
        ER 600 1 2
RH Plus 71 17.0 2x121 ER 600 1 2
        ER 650 1 3
RH 5.5 85 20.0 2x170 ER 600 2 -
        ER 650 3 3
        ER 1500 - 1
MH 5 Compact 90 19.0 2x170 ER 600 2 -
        ER 650 3 3
MH Plus 94 17.0 2x145 ER 600 2 2
        ER 650 1 3
MH 5.6 106 20.0 2x175 ER 600 2 -
        ER 650 3 3
        ER 1500 0 1
RH 6.5 113 22.0 2x195 ER 650 3 3
        ER 1500 0 1
RH 8.5 135 26.0 2x230 ER 1500 2 3
RH 9.5 148 30.0 2x255 ER 1500 3 3
RH 12.5 195 40.0 2x285 ER 1500 3 3
        ER 2000 1 3
RH 16.5 195 44.0 2x285 ER 1500 3 3
        ER 2000 1 3
RH 23,5 235 51.0 765 ER 2000 3 -
        ER 3000 2 -
RH 25,5 305 62.0 2x460 ER 3000 3 3
        ER 5500 - 2
RH 70 522 122.0 2x552 ER 5500 - 2

Double pump flow is not always available on excavators as standard.  In some cases, modifications are required to obtain double pump flow.  If you are unsure of the hydraulic flow available, contact your local excavator dealer.

Erkat cannot guarantee that the information contained on this page is correct or be held responsible for the consequences of any actions that may arise through the use of this information.