upgrading to industrial pneumatic sanding tools - any recommendations?

We have burned the best of electrical ROS. We got tired of this and purchased a 2 HP compressor with the sanding accessories. We got the stick on type of disk and purchased the sanding disks at the local auto parts. We found it cheaper to buy a large roll of sanding disks. The electrical power cord has to be size 10 of better. In conclusion for continuos use we have found the pneumatic much better. It produces much more dust and for indoor use a dust collector is a must. What we have done is to locate the compressor far away from the work station. The addition of an a water/line bleeder is needed. Should the temperature vary too much in your shop an air dryer and line insulation may be required. Conversely if your shop and your compressor are always at ambient temperature you have no problem. A voltage of 220V is much better for constant usage.

The HP rating of a compressor varies from one manufacturer to another. Sears are advertising a 6HP compressor. If you are upgrading to an industrial pneumatic system a survey of your needs is a good thing. It will served for sizing your compressor requirement.

Right on. Consumer compressor mfgrs. lie, lie, lie about their Hp. You can only trust industrial compressors for Hp. When in doubt, compare the output. After all, that's what you are interested in. Compare the cfm at a certain pressure (typically 90 psi). Or, compare amperages of the motor, another good indicator.