Attach to a compressed air source, the compressed air with fill a cylinder which in turn, will push a metal plate down onto the can crushing it. The cylinder must have a surface area of a little over 6 inch squared, for the compressed air to act on, therefore, at in incoming air pressure of 160 psi (lb per square inch), with 6 inch squared = 36 square inches, 160 lbs * 36 square inches = 5,760 lbs of crushing force. Product details claim 6,000 lbs of force, therefore the surface area must be slightly greater, around 6.12 inches squared
