Roll barrel
A roller drum is a - today outdated - machine for the surface treatment of metal parts.
Working principle
The principle of operation is very simple: the drum, which is aligned horizontally in contrast to agitators , is filled with the parts to be treated via a flap and then - usually steam-driven - set in a rotation around its horizontal axis. The rotation causes the parts to hit each other and become increasingly bright.
commitment
Today, roller barrels are practically no longer used, because more modern processes such as jet cutting deliver similar or better results at lower costs.
Machines based on the same principle have also been developed and used for other purposes, for example for coating or painting metal or plastic parts.