The motor can be mounted on the left or on the right with a differentiated resisting torque for stopping in high abutment and low abutment.

First, the turret stop rotates so that when making the first pass, the depth limiter sets the high stop.

Cross chaining occurs when the chain is on a big slant.

Another advantage is that it is easy to adjust the scoop volume : the position of the top stop just has to be changed.