The new TN-750W energry saving servo motor is the latest in the Titan servo motor line.  It boasts 750W of direct power and 4200SPM at the pulley.  The motor retrofits directly into the footprint of all most every clutch or exsisting servo motor to date.  It comes complete with a servo controller, pitman rod, belt cover and 75mm pulley.  Optional pulley sizes are also avilable. 
 
This servo motor can also be equipped with a Needle positioning sensor to allow the motor to stop with the needle in up or down position.  See