ERVIN loading tables are AFFORDABLE and made of the utmost quality, giving you the best value in the industry. All cutting tables come with a 1 year warranty. The basic structure supports steel-made shafts with transporting wheels. The wheels are moved by chain operated by motors and inverter. Hydraulic system for the arms tilting, vacuum pump and electric system are aside the machi... https://www.ervinsales.com/glass-machinery-products/Automatic-Glass-Loading-Machine-Bi-Side.html