Bc-/bc-. the bc- is our newest brush crusher to join the line. it maintains the same precision grabbing action, but with additional fits, and now has the amazing option to add additional top and bottom.Circa 's rock crusher running on kubota bsu pto. this machine original was belt driven. a pto adapter is welded to the flywheel center hub... this was a request by one of our customers who cuts granite blocks for monuments and other decorative stone. the 10 x16 jaw crusher was used to crush these 8 thick slabs of granite as a.