Characteristics:
a.Automatically controlled by computer..
b.From film roll to final bag, one process.
c.Servo motor, easy to adjust the bag length and the production speed.
d.Automatic film feeding, tension automatically controlled by torque motor.
e.Automatically stop when film feeding blocks or bags jam.
f.High efficiency, save manpower and time.
g.Equipped with heat sealing and cold cutting device. 
http://www.sanbimachine.com/