Technical Specification
| Type | KR90A |
| Torque | 90 KN.m |
| Max. diameter | 1200 mm |
| Max. drilling depth | 36 m |
| Speed of rotation | 6~30 rpm |
| Max. crowd pressure | 90 kN |
| Max. crowd pull | 120 kN |
| Main winch line pull | 80kN |
| Main winch line speed | 75 m/min |
| Auxiliary winch line pull | 50kN |
| Auxiliary winch line speed | 40 m/min |
| Stroke(crowd system) | 3500 mm |
| Mast inclination(lateral) | ±3° |
| Mast inclination(forward) | 4° |
| Max. operating pressure | 34.3 MPa |
| Pilot pressure | 3.9 MPa |
| Travel speed | 3 km/h |
| Traction force | 122 kN |
| Operating height | 12705 mm |
| Operating width | 2890mm |
| Transport height | 3465 mm |
| Transport width | 2770 mm |
| Transport length | 11385mm |
| Overall weight | 24 t |