There are 3 models of Angel juicers in the market place. We used to sell just the 5500 but now that the 8500 is available we are supplying the two models 5500 & 8500. Below will explain the difference of the models.
The original stainless steel twin gear is marketed as the 5500 model. The 7500 model is the same as the 5500 except it has a sensor that stops and start the juicer when jammed; whereas with the 5500 model the operator has to press the button. Thus the difference is only the sensor.
In the case of the 8500, there is really a big difference because it uses very high quality surgical stainless steel 316 sus for the gears and the whole juicing front configuration. On top of that it also has the sensor that is in the 7500. The 8500 surgical stainless steel used in the twin gears and the whole front configuration is very expensive. Thus the 8500 model is truly a class of its own (to the people who value quality) as it is the only model that uses the higher quality surgical stainless steel 316 sus gears and juicing filter screens.