Let's throw out some suggestions:
1: They are not original factory fuses"
2: Some maintenance guy, or ??? only had 35 amp fuses??
3: What size is the fuse block??? 30/60 amp?
4: Does this machine have more than 1 motor?
5: What's the nameplate for? Whole machine??
6: Why are there 60 amp fuses in the main, if the plate says 21.5?
If the "factory" intended 21.5 amp max, usually a 30 amp fuse block would be installed. If the fuse block is 60 amp, then maybe the nameplate is incorrect.

Or perhaps the machine was modified, rebuilt, butchered, and none of the info you read was correct. Did you determine the cause of the blown fuse??

Further info or discussion at your convenience.

HotLine1
John


John