Given that they sell the cyclone head part separately for DIY mounting as @Blackswanwood has done, I'd be fairly sure you can just detach the head from the cage assembly and plonk it down on top of a suitably sized bin - gravity and any pressure difference generated by the extractor will keep it in place.
This not the same cyclone, but the principle is the same. I currently use a 35-gallon plastic trash can as the collection bin for my DC system. The 19mm plywood lid has a groove routed into the surface that mates with the top of the trash can and is filled with a rubber gasket. It is a simple task to lift the lid, slide the trash can out and empty it.