Abstract: In a sample preparation system for iron and steel samples, a grinding machine (1) with a stamping device (2) and/or a cutting machine (3), as well as transport devices (7 to 12), form a modular structural unit for the input, output and transfer of samples. In this case it is possible to connect the stamping device (2) having an integrated robot (20), a sandblasting unit (26), an inductive heating station (27), a sample crusher (25) and a plurality of stamping machines (28, 29, 30) for lollypop samples, and the cutting machine comprising a rotating clamping chuck (31) and an adjustable cutting grinding wheel (32) for cylindrical and conical samples, to a grinding machine (1), which forms the central module and contains a rough and a fine grinding device (18, 20), a cooling device (19) and a clamping device (14) for the samples, and which grinding machine (1) has a dust removal connector (13) for the central removal of dust.