... it adopts double crank mechanism. The length of ram storke can be adjusted by power.The machine ... tool and workpiece.MODELBA5063Max. Slotting Length of ram630mmNumber of ram strokes (per min)8, 12, 20, 30r. ... travel of table800mmRange of table longitudinal and transverse feeds ram storke0.10, 0.20, 0.32, 0.54 ... , 1.30mm/perRange of table rotary feed deg per ram storke3, 6, 936, 1612, 24, 29deg/perDiameter ...