The gravity roll lowering unit is used to change the level between the roll infeed and outfeed points.
- The difference in height must be between 2 and 4 metres.
- Length: about 2 metres.
- Roll diameter between 90 mm and 140 mm.
- The length of the cut can be between 95 and 260 mm.
Adjustment of the roll guides is manual and takes place from a single point for the entire lowering unit.
Accumulation of product on the chute is possible, it obviously depends on the position of the unit along the line and with respect to other machines.
Essentially the machine does not need its own space, but as for the elevators, it is advisable to leave a free space upstream and downstream. This space should be at least equal to the length of the sum of the products that the upstream machine sends into the line during a stop in phase.
The chute, together with an elevator, may be used to create a passage way for persons and vehicles beneath the roll conveyor line.
In virtue of the “S”-shaped layout, the flow of production lowers but does not change direction.