Series YDR200 - YDR200K
Large by-pass diameter up to 200 mm with adjustable stroke and various drive combinations, either two rotaries or one rotary and one drifter.
Rotation speed up to 64 rpm
Rotation torque up to 260000 Nm
Combined weight up to 6350 kg
Sonic Drills
Series YSD600 - YSD20K
High capacity with low power requirement
Higher production rates as with percussion
Lower noise level for inner city works
Less drill pipe wear
Vibration frequency up to 4000 cpm
Rotation speed up to 96 rpm
Rotation torque up to 31600 Nm