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The double rotary drive distinguishes with its slim design. The inner continuous flight auger is driven independently from the casing by two separate rotary drives.

metricimperial
  • Rotary drive I (casing) - max. torque - 0 - 220 kNm

  • Rotary drive I (casing) - max. speed - 0 - 17 U/min

  • Rotary drive II (auger) - max. torque - 0 - 105 kNm

  • Rotary drive II (auger) - max. speed - 0 - 37 U/min

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Rotary drive I (casing) - max. torque
0 - 220 kNm
Rotary drive I (casing) - max. speed
0 - 17 U/min
Rotary drive II (auger) - max. torque
0 - 105 kNm
Rotary drive II (auger) - max. speed
0 - 37 U/min
  • Double rotary drilling

  • Operating weight - 99.0 - 111.1 t

  • Max. torque - 347 kNm

  • Kelly drilling, max. drilling depth - 77.5 m

  • Kelly drilling, max. drilling diameter - 4,100 mm

  • Operating weight - 115.5 - 133.2 t

  • Max. torque - 450 kNm

  • Kelly drilling, max. drilling depth - 95.0 m

  • Kelly drilling, max. drilling diameter - 4,500 mm