Woltman 55 DR

  • Impressive torque
  • Powerful pull down
  • Tier IV engine available
  • optional Man lift and movable cabin
  • 250 kNm torque

Woltman offers a wide range of drilling rigs.

Most of these purpose build rigs are especially designed for high torque drilling methods like displacement drilling and big diameter CFA.

No excavator or crawler crane is used as undercarriage which has made it possible to guarantee the highest possible stability and low centre point of gravity. All Woltman rigs have a solid and strong undercarriage which is hydraulically extendable and is fitted with wide track plates. The winches of the Drilling rigs are fully synchronized in pull-up and pull-down operation. Lots of accessories available to enable multipurpose operation.

Mai multe informații:


+40 314 253 800

Ron van Dam


  • Metric
  • Imperial
Operational Specifications
Recommended Rotary head PVE PVE RH-25
Max. torque on leader kNm 250 ton/m 28.1
Leader length std (max.) mtr 24,8 (27,8) ft 81.4 (91.2)
Max. drill depth mtr 23 (26) ft 75.5 (85.3)
Max. diameter mm 1.000 inch 39
Pull up force ton 50 lbs 110,231
Pull down force ton 20 lbs 44,092
Operational weight RH-8 ton 63 lbs 138,891
Max. oil flow ltr/min 520 g/min 137
Max. pressure bar 320 psi 4,641
Transport weight excl. rotary head ton 57 lbs 125,663
Transport weight w/o counterweight ton 53,2 lbs 117,286
Transport weight incl. RH-8 ton 63 lbs 138,891
Total counterweight ton 6,9 lbs 15,212
Rig specifications
Engine Caterpillar C-13
Engine output kW 350 HP 475
Hydraulics Bosch Rexroth
Hydraulic system Openloop