... assembly, coining, marking, degating, bending, punching, shearing, staking, crimping, spot welding & clinching. pneumatic machine for cutting This Hydro-Pneumatic ... controls are very simple, the same as for any double acting pneumatic cylinder.The operating stroke ... used on sheet metal joining, punching/piercing, coining/marking/stamping, pressing/compressing/straightening, riveting/crimping/flaring, ...