The C100 from Rayco is an awesome machine. It actually has 2 radiators. One on the back and one up top. I heard you can have the back one completely blocked and still run all day! I wouldn't recommend it though. It's built like a tank and the mulcher head is nice. Rayco is actually making there own rotor now with more tooth options.
/ A Mulching Machine that is up to the task of mulching?
The Rayco C100 is an awesome machine. It actually has 2 radiators. One on the back and one up top. I heard that you can still run all day if the rear is totally blocked. They also are making their own rotors now with many tooth options.