dantheman,
I have a very similar sander which I bought many years ago. It was branded by "Machinemart" under their "Clarkes" label and I guess they are all far eastern generics.
It is a very useful machine for general use as well as modelling. It is one purchase my wife approves of as I sharpen all her kitchen knives (she has about 20!) on it.
However, I do find the horizontal belt runs off and I have to wedge it into position as the adjustment and stops are inadequate.
Roger in France