No the only difference in the I.S.E. LC-50 is a cast nickel/Iron grind ring and the motor unlike all other I.S.E. has a internal fan
to cool the 1/2 H.P. motor..I have 3 OLD I.S.E. disposer's two I.S.E. 77 one which looks like a smaller batch feed 1970 and the other
is a 1976 model both of them the Model 77 and I have a 1968 I.S.E. 333 which is different than both of them.All my old ones have
a Cast flywheel and Cast grind ring the flywheel has fixed Triangle hammers and a center crusher cone and a rectangle ripper.
The hammers are kitchen shear close to the grind ring and they can grind anything very fast.I never have that problem with
things bouncing around the grind chamber.The I.S.E. LC-50 is no where near as good as the old ones I.S.E.(pre 1977) the inside looks very
close to this old Kenmore of mine with the Cast grind ring.

to cool the 1/2 H.P. motor..I have 3 OLD I.S.E. disposer's two I.S.E. 77 one which looks like a smaller batch feed 1970 and the other
is a 1976 model both of them the Model 77 and I have a 1968 I.S.E. 333 which is different than both of them.All my old ones have
a Cast flywheel and Cast grind ring the flywheel has fixed Triangle hammers and a center crusher cone and a rectangle ripper.
The hammers are kitchen shear close to the grind ring and they can grind anything very fast.I never have that problem with
things bouncing around the grind chamber.The I.S.E. LC-50 is no where near as good as the old ones I.S.E.(pre 1977) the inside looks very
close to this old Kenmore of mine with the Cast grind ring.
