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metricimperial
  • Diameter - 520 - 1,840 mm

  • Casing inside diameter - 540 - 1,910 mm

  • Pilot - Round shank chisel

  • Range of application - For lifting and removing boulders.

  • Casing - cased

  • Equipment - Kelly box 200 mm

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VariantsBoulder extractor Ø 520 casedBoulder extractor Ø 650 casedBoulder extractor Ø 700 casedBoulder extractor Ø 780 casedBoulder extractor Ø 900 casedBoulder extractor Ø 970 casedBoulder extractor Ø 1060 casedBoulder extractor Ø 1180 casedBoulder extractor Ø 1370 casedBoulder extractor Ø 1650 casedBoulder extractor Ø 1840 cased
Diameter (mm)5206507007809009701,0601,1801,3701,6501,840
Casing outside diameter (mm)6207508008801,0001,0801,1801,3001,5001,8002,000
Casing inside diameter (mm)5406707208009201,0001,1001,2221,4201,7201,910
Weight (kg)4655966216647317798419191,0531,2781,439
Max. torque (kNm)350350350480480480480480480480480
Article no.
  • Operating weight - 59.4 t

  • Max. torque - 180 kNm

  • Kelly drilling, max. drilling depth - 34.5 m

  • Kelly drilling, max. drilling diameter - 1,500 mm

  • Operating weight - 52.8 t

  • Max. torque - 200 kNm

  • Kelly drilling, max. drilling depth - 34.5 m

  • Kelly drilling, max. drilling diameter - 1,500 mm

  • Operating weight - 69.3 - 79.9 t

  • Max. torque - 252 kNm

  • Kelly drilling, max. drilling depth - 53.2 m

  • Kelly drilling, max. drilling diameter - 3,300 mm

  • Operating weight - 71.1 - 82.1 t

  • Max. torque - 252 kNm

  • Kelly drilling, max. drilling depth - 53.2 m

  • Kelly drilling, max. drilling diameter - 3,300 mm

  • Operating weight - 73.6 - 84.6 t

  • Max. torque - 297 kNm

  • Kelly drilling, max. drilling depth - 70.8 m

  • Kelly drilling, max. drilling diameter - 3,400 mm

  • Operating weight - 75.5 - 85.5 t

  • Max. torque - 297 kNm

  • Max. crowd force - 320 kN

  • Kelly drilling, max. drilling depth - 70.8 m

  • Kelly drilling, max. drilling diameter - 3,400 mm

  • Scope of delivery - Box 15 pc.

  • Type - Kelly box

  • Range of application - Kelly drilling tools

  • Type - Kelly box

  • Range of application - Kelly drilling tools