Normally, one central could equipped with two working station, there are two sanding mouth at one working station.  

Also, we could design the working station according to the actual ground condition.

One central station working drawing:

Main machine:
Power supply:3HP 380V 50Hz
Working current:7.2A
power:3.0KW
air flow:420m3/h
air pressure:-220mbar
Dust collect can capacity:60L
Supply Air pressure:0.6-0.8Mpa

Working station:
Dust collect mouth:2 pcs
Sander hanger:2 pcs
Anti water 220V 1phase socket:2 pcs
Power switch:1 pcs
Distance start function: yes
Distance turn off function:yes
Air supply value(oil & water separator): 1 pcs
Power switch:220V/50Hz/16A
Water proof socket:220V/50Hz/10A

Equipped with 9 pcs of sanding mouth and and 200 pcs sanding paper