Willing to work with existing compressed air in various diameters ranging from 6  mm diameter up to 320 mm diameter. There are various models cylinders, some with ISO and some with standards specified by the manufacturer. Within the product range of Automation Yeruham pistons can be found in various ISO standards, pistons short stroke (pancakes), cylinders anti- rotating gudies, rotary cylinders, rodles cylinders. In addition to a variety mentioned also used cylinders made of stainless steel.