Automatic sole working machine with changeable heads to perform the following operations:
1)Grooving and channel on trimmed soles
2)Cutting one or two visible grooves in trimmed soles
3)Hollowing out compound soles; one sole has the bottom thickness
and other the welt thickness. So, you obtain simultaneously a sole 
with insole and welt.
4)Removing the welt around the heel seat 
5)Marking and ornament
6)Bending the trim for jourdan processing
7)Double channel for goodyear work 
8)Channel and sole ornament silmultaneously
With slackening of speed on the top and on the heel and with
possibility to have tables and transports on different sizes