Two hydraulic motors are available for the MG41 gearbox, HR16-MG41, 16 cc and HR25-MG41, 25 cc.
In combination with different Spindle Units a great range of speeds can be covered.
All motors are mounted to the MG41 Gearbox with a quick release coupling. The motors are reversible for easy winding on and off of big diameter drill bits.
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Spindle rpm with spindle units ST2 and ST3 :
Pentpak 25 +
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1:st gear
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2:nd gear |
3:rd gear |
4:th gear |
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25 cc motor + ST2: |
120 rpm |
195 rpm |
335 rpm |
530 rpm |
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25 cc motor + ST3: |
250 rpm |
395 |
680 |
1080 |
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Pentpak 20/15 +
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1:st gear
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2:nd gear
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3:rd gear
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4:th gear
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25 cc motor + ST2: |
65 rpm |
100 rpm |
175 rpm |
280 rpm |
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25 cc motor + ST3: |
130 rpm |
210 rpm |
360 rpm |
570 rpm |
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16 cc motor + ST2: |
100 rpm |
160 rpm |
275 rpm |
425 rpm |
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16 cc motor + ST3: |
205 rpm |
325 rpm |
560 rpm |
890 rpm |
Torque with spindle units ST2 and ST3 :
Pentpak 25 +
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1:st gear
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2:nd gear |
3:rd gear |
4:th gear |
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25 cc motor + ST2: |
1010 Nm |
630 Nm |
370 Nm |
230 Nm |
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25 cc motor + ST3: |
490 Nm |
310 Nm |
180 Nm |
115 Nm |
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Pentpak 20/15 +
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1:st gear
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2:nd gear
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3:rd gear
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4:th gear
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25 cc motor + ST2: |
1010 Nm |
630 Nm |
370 Nm |
230 Nm |
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25 cc motor + ST3: |
490 Nm |
310 Nm |
180 Nm |
115 Nm |
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16 cc motor + ST2: |
865 Nm |
540 Nm |
315 Nm |
200 Nm |
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16 cc motor + ST3: |
420 Nm |
265 Nm |
155 Nm |
100 N |