Overall the TLB line from Kubota is fairly decent, but I can see some areas where the machine would benefit greatly if just a bit more robust.
I知 sure convinced themselves that the TLB line is commercial duty, but that痴 controlled condition test lab, vs real world abuse.
I would think that for $55K another manufacturer could offer an M59 sized TLB that could outperform the M59. The M59 has a few areas where there just is not enough meat in the thing. Adding just another 600-1,00lbs of metal in the right spots would make it a true industrial commercial machine. For what Kubota is asking, the machine could be a bit more robust.
Some parts of the frame, the loader and bucket are going to take a beating with a few thousand hours of use. The pin diameters and bearing areas of the pivot points are going to get hammered out to fast from heavy use. It would not take much to put in grease seals to hold the grease & minimize contaminants, A 12.5" wide tire in front would be nice for flotation. Guards and Sid plates are too thin.
When you drop that much coin for a machine, you hope that the thing is built for the long haul.
For landowner farm and small commercial work, a Full size TLB is too heavy in soft ground and Mud, so a machine in the 10,000 lb range definitely has a place.
