The Alpha® Vacuum Hold Down System is a clamp-free restraining system utilizing compressed air. Alpha® converted the idea of a vacuum suction hold down system commonly used with CNC machinery and utilized a unique technology called Air Driven Vacuum Pump to create the Vacuum Hold Down System. This new technology converts pneumatic air commonly available for polishing applications into a vacuum system. It is a very simple system, easy to operate and much more cost-effective than expensive vacuum pump systems.The Vacuum Hold Down System is particularly useful when performing sink cutouts, polishing with the Alpha® Edgecrafter, profiling with a router, and other applications where clamping is necessary. Traditional clamps can rust and wear out over time and often need to be re-positioned during operations; the Vacuum Hold Down System possesses none of those shortcomings. As long as the worktable and work piece are flat non-porous materials, the Vacuum Hold Down System can provide an extremely strong bond to hold the work piece in place. While 5 suction cups are included in the set, the unit can accommodate a sixth cup and one, some or all cups can be used at a time. Use one cup alone for working small pieces, as when trimming tile or use all the cups for larger pieces.The system can operate with commonly available air compressors able to put out 90 PSI, the required optimum air pressure. The set includes: 1-Air Vacuum Processor Unit, 5-suction cups and 5-6’ air hoses.