We just picked up a used Holzher 1435. It's my first bander and I am now getting familiar with the concept everyone here talks about, which is constantly fussing with them. This machine has a feed roller, and then two passive pressure rollers immediately following it. We got two sets of pressure rollers with the machine. 1 set of tapered, one set of straight. The previous owner says use the straight ones on everything. The tech says use the tapered on everything but thick solid wood. The diameter of the largest end of each tapered roller is the same diameter of the entire straight roller. So, wouldn't the straight roller be best to use for everything since it puts the same pressure on the whole surface than just one edge? Or am I thinking about this wrong?
From contributor K:
The idea is that the tapered rollers are installed one with taper up and one with taper down in order to concentrate pressure at the top and bottom edge of the panel. It all sounds good in theory but I'd go with what the guy who used the thing day in and day out had recommended rather than a tech who (forgive me techs) deals with best case scenarios all the time.