Branson SW-200 spin welder, s/n – 200CR0101583
2 hp Apex 6154 servo, 1 degree spindle orientation, 3.4″ stroke, 30″ height adjustment, 315# force, Eason 900X interface, appears excellent, cable damaged, 2001
Spin welders use radial motion and pressure to friction weld plastic part halves. Lower part halves are clamped to the fixed base. Upper part halves are clamped to the upper rotating spindle. Servo drives control upper spindle speed, torque and allow angular control for final part orientation. Air controls feed pressure. Like a drill press, spin welders allow economical plastic joining of cylindrical or spherical parts up to 24″ in diameter.