Semi-automatic pneumatic machine for slicing various types of cold cuts: ham, coppa, bacon, mortadella, speck, etc. The machine can also trim other types of meat cuts (neck, pancetta, etc.) with the meat being inserted and removed by hand. The blade attachment mechanism enables the user to replace the blades quickly to change the meat cut format. The sharpness of the blades, along with a fast and precise descent of the top of the ham, ensures extremely precise cuts of meat. A range of accessories make this machine functional and easy to use.