"ST 220"  
AUTOMATIC UNLOADER FOR TRAVERTINE BLOCK-CUTTER


This machine is fully automatic. It works in perfect synchrony with the block-cutter. It employs a sucker panel to pick up the just-sawn workpiece from the block-cutter and carry it to a belt conveyor connected with the cross-cutting machine. The unloader can handle any type of travertine, even if there are broken spots in the workpieces. In fact the machine is equipped with a powerful air pump that guarantees vacuum power to suckers even when only a single sucker is covered when none of the other ones are touching the workpiece and consequently all are sucking in air. The only limitations that apply to workpieces regard thickness, a maximum of 50 mm, and height, a minimum of 220 mm. All machine movements are performed by hydraulic cylinders. These are powered by a hydraulic unit with braked start-up and stop, guaranteeing smooth movements without suddenly stressing and vibrating the machine. The type of the hydraulic fluid employed, and the characteristics of the hydraulic unit, are all selected to ensure perfect operation in extremely hot, cold and damp working conditions.