I think your going to max out at around 1000-1100 bus carts on a hyd drive. Anything with a cross auger or larger corner auger isn't going to have a hyd option. Unverferth builds several 1000bus models available with hyd, the highest speed option needs 3 hyd circuits so you will probably need hi flow hyd on the tractor. I would look at how many combines your trying to service. If you only have two machines doing wheat/canola/soybeans I think you could make it work. But more machines or crops such as barley/oats/corn your going to be unhappy with hyd auger performance.
Thanks for the offer but if we go the cart route I think it will be at least a 1500 bushel cart. If the hydraulic auger is only 200 bushels per minute it would take too long to transfer the grain so we would trade our tractor for one with a PTO.I'll sell you a hyd kit for your grain cart then you can just order one with a pto? It's off a single auger 1000 bu Brandt.
Is that just a gear motor?We have a Brent 1282 cart with hydraulic drive cart on a 450 Quad. Unload capacity is about 200 bushels/minute in wheat, 250 in barley and canola. Mine is hooked up to 2 outlets on the same pump @ 57 gallons. WE were told not to hook to both pumps for hydro motor. Advertised Pto unload speed for my cart is 600 bushels/minute.