MAIT HR 420-800 DH
During the Bauma 2019 in Munich (DE) was MAIT presenting this imposing HD 420-800 DH, the biggest rig they are producing.
This rig can be used for drilling, slurry walls and piling. As the rig is erected here, the total weight is around 165 tonnes.
Powered is the rig by a CAT C15 with 540 hp. The rig is equipped with 30 tonne winches.
One track is 6.5 meters long and 1.0 meters wide. The undercarriage is maximum 5.1 meters wide and can be retrackted to a breadth of 3.5 meters. The tracks could also be removed from the undercarriage.
The counterweight has a 4.3 meter tailswing.
The rig was erected with two rotary heads, the lower head drives the outer tube and the upper head drives the internal tube. The lower drive has a maximum torque of 400 kNm and the upper drive has a maximum torque if 280 kNm.
The leader is 22.5 meters long and the total height of the rig is 26.1 meters. The maximum length of the leader is 27.2 meters. The drilled material is guided trough the chutes.