Adjustable-angle pressure or nip roller comprising an associated process roller, having the following features: - the pressure or nip roller (3, 4) can be adjusted, by means of an adjustment means comprising a force activation unit, between a parked position in which the roller surface (3, ', 4') of the pressure or nip roller (3, 4) assumes a distance from the surface of the process roller, and an operating position in which the roller surface (3', 4') of the pressure or nip roller (3, 4) is held pressed onto the roller surface of the process roller, a material web being guided through between the roller surface (3', 4') of the pressure or nip roller (3, 4) and the roller surface of the process roller, - the adjustment means comprises a displacement means and an angle adjustment means comprising a lever (7.1, 7.2), by means of which the position of the pressure or nip roller (3, 4) is adjustable with respect to the process roller, characterised by the following further features: - the lever (7.1, 7.2) of the angle adjustment means comprises a two-armed lever (7.1, 7.2) that is pivotable about a pivot axle (8.1, 8.2) and comprises two adjustment lever arms (7.1a, 7.1b; 7.2a, 7.2b), - the pressure or nip roller (3, 4) is rotatably mounted on one adjustment lever arm (7.1a, 7.2a), and a stop means (9.2) is provided on the other adjustment lever arm (7.1b, 7.2b), - the displacement means is constructed in such a way that it can adjust the pivot axle of the two-armed lever (7.1, 7.2) with respect to the process roller, and - the angle adjustment means comprises a stop (9.1) which acts at least on one side and which cooperates with the stop means (9.2) provided on one adjustment lever arm (7.1b, 7.2b) in such a way that, when further force is applied by the force activation unit, a contact force acting on the pivot axis (8.1, 8.2) of the two-armed lever (7.1, 7.2) can be generated, by means of which the pressure or nip roller (3, 4) can be pressure-loaded onto the roller surface of the process roller whilst the material web is guided through between the two rollers (3, 4; 2). - the pressure or nip roller (3, 4) can be adjusted, by means of an adjustment means comprising a force activation unit, between a parked position in which the roller surface (3, ', 4') of the pressure or nip roller (3, 4) assumes a distance from the surface of the process roller, and an operating position in which the roller surface (3', 4') of the pressure or nip roller (3, 4) is held pressed onto the roller surface of the process roller, a material web being guided through between the roller surface (3', 4') of the pressure or nip roller (3, 4) and the roller surface of the process roller, - the adjustment means comprises a displacement means and an angle adjustment means comprising a lever (7.1, 7.2), by means of which the position of the pressure or nip roller (3, 4) is adjustable with respect to the process roller, characterised by the following further features: - the lever (7.1, 7.2) of the angle adjustment means comprises a two-armed lever (7.1, 7.2) that is pivotable about a pivot axle (8.1, 8.2) and comprises two adjustment lever arms (7.1a, 7.1b; 7.2a, 7.2b), - the pressure or nip roller (3, 4) is rotatably mounted on one adjustment lever arm (7.1a, 7.2a), and a stop means (9.2) is provided on the other adjustment lever arm (7.1b, 7.2b), - the displacement means is constructed in such a way that it can adjust the pivot axle of the two-armed lever (7.1, 7.2) with respect to the process roller, and - the angle adjustment means comprises a stop (9.1) which acts at least on one side and which cooperates with the stop means (9.2) provided on one adjustment lever arm (7.1b, 7.2b) in such a way that, when further force is applied by the force activation unit, a contact force acting on the pivot axis (8.1, 8.2) of the two-armed lever (7.1, 7.2) can be generated, by means of which the pressure or nip roller (3, 4) can be pressure-loaded onto the roller surface of the process roller whilst the material web is guided through between the two rollers (3, 4; 2).