Combines S Cubed Rotors

[Bundy]

As I remember, the s3 rotors started on the 86_96 machines (not 100% but). The original rotors on the TR 70's _ 85's _95's the rotor had lenght long rasp bars on opposite sides of the rotor. Been a while but it was something like that. Best way to tell is open up the side panel and have a look. If the rasp bars are short and rap around the rotor in a spiral patern then a pretty high chance it is s3.

 

[JHEnt]

The old rotor was used up untill the TR85_TR95 machines. These used cylinder bars mounted in 2 pairs straight in line with the rotor body. The 1st series of S-cubed rotors used the same rotor core but had short rasp bars mounted in pairs but staggered in sets of 3 making a spiral around the rotor core. The early ones had the rasp bars bolted to a mount that then bolted to the rotor core. The second generation S-cubed rotor has a formed rotor body that has the mounting lugs made into it that the rasp bars bolt to. In other words the rasp bar will bold directly to the rotor not to a mount. The second generation also have threaded places to attach agitator tines to the separtor section of the rotor. The older S-cubed required bolting a agitator skin onto the rotor core. These skins cost alot more. The 2nd generation S-cubed started toward the later half TR86_TR96 production. I think somewhere around 1989-1990 area. Basically the later S cubed have many fewer areas for dirt to build up to make them out of balance and are less expensive to do basic rasp bar or sparator maintenence to than the early S cubed rotor. Performace wise the S-cubed is much better handling material than the old rotrs were. The spiraled rasp bars spread the load better as the rotor spun. Basically keeping the rotor evenly loaded throughout rotation where the old rotor with its straight rasp bar was loaded part of the time then without a load. This meant more stress on the drives and more of a surge in hp requirements to do the job.