This is the very popular CR Onsrud 36210 Inverted Router. It’s their largest model sporting a 36″ throat and a 10 hp 3,600 RPM motor. The spindle is belt driven and runs at 25,000 RPM. There is 3″ of spindle travel that is pneumatically controlled via a foot pedal. While the maximum workpiece/template height is 4″. The table measures 43″ wide and is 31″ deep. Included is a 3/4 hp Gast vaccum pump.