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LiebherrDeep foundation
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Deep FoundationAttachmentsDouble rotary drivesDBA 250

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.

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  • Rotary drive I (casing) - max. torque - 0 - 250 kNm

  • Rotary drive I (casing) - max. speed - 0 - 30 U/min

  • Rotary drive II (auger) - max. torque - 0 - 109 kNm

  • Rotary drive II (auger) - max. speed - 0 - 42 U/min

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Attachment recognition
The automatic attachment recognition also records performance figures of the respective attachment.
Rotary drive I (casing) - max. torque
0 - 250 kNm
Rotary drive I (casing) - max. speed
0 - 30 U/min
Rotary drive II (auger) - max. torque
0 - 109 kNm
Rotary drive II (auger) - max. speed
0 - 42 U/min
Double rotary drilling
Double rotary drilling combines continuous flight auger drilling with a continuous casing.

  • Operating weight - 72.6 - 78.5 t

  • Max. torque - 300 kNm

  • Max. crowd force - 320 kN

  • Engine power - 600 kW

  • Pile driving with vibrator slim design, max. pile length - 22.0 m

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