The invention relates to a roller press (1) for comminuting brittle material to be milled, having at least two milling rollers (2, 3), a machine frame (4) which has at least one upper flange (5) and/or at least one contiguous upper frame element (6), and has at least one lower flange (7) and/or at least one contiguous lower frame element (8), at least one frame head (9) for stabilizing the at least one upper flange (5) or the at least one contiguous, upper frame element (6) when the roller press (1) is open on the head side in order to change the milling rollers (2, 3), wherein the frame head (9) consists of an upper cross member (10) which is supported by way of at least two lateral supports (11, 12) and is connected to the at least one upper flange (5) or the at least one contiguous, upper frame element (6). It is provided according to the invention that the machine frame (4) is closed by way of at least one head piece (13, 14) which can be released completely from the machine frame (4) and the frame head (9).