I'm curious as well. I'm getting ready to take the plunge but not as a business though it might as well be. Where I live, there's no rentals available. I picked up a Terex PT-100F at an auction with 2000 hrs on it. Previous owner passed away in the middle of changing the engine. Missing parts etc but I got it dirt cheap. I've spent almost a year rebuilding it and now am looking for a mulcher.
Like I said, I'm not going to operate a business but I have 200 acres, about half wooded that are over crowded needing thinning, edges that need pushed back to reclaim pasture and a 10 acre patch that used to be pasture now thick with cedars ranging from 10 to 50 feet.
I couldn't afford to hire someone so I'm going to mulch it myself. I'm a cheapskate so I already got the CTL cheap and can do my own maintenance. I'm in the middle of nowhere so after research, the drum mulchers make a pretty finished product and don't throw as much as far but they are more expensive to maintain so I'm planning on going with a disc mulcher instead. They are faster, break down less and cheaper to buy. I have about $15k in my CTL after all my repairs. I'm hoping to get a Diamond 60" piston pump disc for under $18k. (I just missed 2 recently)
I'm just trying to figure how much I'm going to be spending on repairs etc. I can't find much info, especially on the disc mulchers. Seems like teeth are the only thing anyone talks about as far as maintenance unlike the drum guys who say 1000 hours and you have to do bearings etc.
I'm also wondering if I could run knives on the top and outside of the disc but run carbides on the bottom. This way I can cut trees, suck them in the top like usual where they basically explode but then the carbides on the bottom would last longer for back dragging, taking down the stumps etc.
I'm just afraid I'm going to get in over my head and might be better off selling the CTL and accept the land has been like this for years before I got it and stay solvent.