The WEKA SR75 Core Drilling Machine is an extremely powerful, water-cooled SR motor of 7500W, with 15 speeds, a stable construction thanks to a fully metal housing, gear transmission with oil bath lubrication, overload clutch, and oil pump.
This SR75 achieves the maximum possible performance from the 400 Volt power supply and no longer uses carbon brushes. The SR75 has three mechanical gears and operates with 5 electronic gears per mechanical gear. These can be changed during drilling using pressure buttons. The SR75 is the ideal machine for very large drilling diameters.