Geonex Rotary Heads are engineered for DTH-Drilling. Design is compact and strong engineered for both horizontal and vertical drilling. Rotary head can be mounted straight to feed carriage or as an option, there is also possibility for tilt function with cuttings collector. Speed switching valve option and different motor sizes also enables drilling of large diameter range. Rotary head has in-built air swivel with large hole through.Download datasheet
Applications for Geonex GR 50
HZR610 horizontal drilling rig
The GR 50 rotary head is compatible with the HZR610 horizontal drilling rig.
Vertical drilling and micro piling rigs
The rotary head is engineered for both horizontal and vertical drilling applications.
Anchoring and special drilling rigs
The GR50 can be attached to a variety of special drilling rigs from different brands.
Geonex GR 50
|Weight kg (lb)||650(1433)|
|Length (with out threads adapter) mm (ft in)||520 (1’ 8,5”)|
|Width mm (ft in)||580 (1’ 11”)|
|Height mm (ft in)||615 (2’ 7/32”)|
|Thread connection (can be specified according to customer needs)||Api Reg 3 1/2”F, Api Reg 4 1/2”F, Api Reg 6 5/8" F, Hex heads|
|Max oil flow lpm (gpm)||300 (119)|
|Max pressure Bar (psi)||250 (3625)|
|Hydraulic motor size cm3/r (cid)||min. 200 (12) max. 630 (24)|
|Max rotation torque, slow gear Nm (ftlb)||min. 14000 (10325) max. 55000 (40565)|
|Max rotation speed, slow gear r/min||min. 57 max. 14|
|Max rotation torque, fast gear Nm (ftlb)||min. 9300 (6860) max. 37500 (27660)|
|Max rotation speed, fast gear r/min||min. 85 max. 21|
|OPTION||Speed switching valve|
|OPTION||Sliding cuttings collector|
|OPTION||Different sub savers|