Integral = 3-point aka "lift type"Thanks for reply, now if I can figure out what semi-intergal and integral cutters are I will be ok ?
Semi-integral = semi-mount. Uses the lower two arms of the 3 point hitch and has a tail axle.
A 5100E has the power to run a 15' batwing so you are really limited by weight of the cutter rather than the power needed to run it. I wouldn't run a 3 point cutter larger than an 8' unit as they are too heavy otherwise. A semi-mount has little weight on the hitch so you could run a 10' or 14' one just fine.