help needed to find dust extraction specs for a 4sider

[timbatrader]

I am setting up a machine at work a used 4sider converted to make bee box ends it puts in the rebates and handles to precut shook's I need to rig up dust extraction to it using a collection of old cyclone's fans etc. from our junk heap what I am looking for is some information and links to where I can find the speed and volume of air needed for a typical 5 head 4sider and horse power required to drive a Richardson paddle fan with a 14 inch inlet any help much appreciated