RB 8R - Geothermal Drilling Rig

The small, crawler mounted geothermal drilling rig

The RB 8R is a self-propelled, fully hydraulically operated geothermal drilling rig. It is ideally suited for drilling geothermal boreholes on smaller-sized projects for which ease of transport, mobility and compact dimensions are important factors.
 

Typical drilling systems:

• Overburden drilling with a down-the-hole hammer (with standby compressor) 
• Flush borings (with the use of the installed eccentric screw pump) 
   

Technical Data Depth   (m)   100 (Ø 350 mm) / 150 (Ø 150 mm) Hook load (max. permissible) (kN) 85 Casing installation height  (with extension) (m)   6,0     Feed force   (kN)   30 Pull back (kN) 85 Length of stroke (m) 3,86   Torque   (Nm)   5.200 / 18.200 Rotation speed (1/min) 0 - 146 Free passage (mm) 50 + 155   Weight   (t)   10