Pressurized-medium system, which includes - a pressurized-medium source, - a double-acting actuating cylinder, which includes a feed line and a return line, - a directional control valve for controlling the actuating cylinder, - pressurized-medium conductors connected from the pressurized-medium source through the directional control valve to the actuating cylinder and back, - a booster cylinder, which is fitted between the directional control valve and the actuating cylinder, and - a pressure-controlled sequence valve fitted between the directional control valve and the booster cylinder and connected to the booster cylinder in such a way that, when the pressure increases in the feed line of the actuating cylinder over the setting value of the pressure-controlled sequence valve, changes its position, feeding the pressurized medium to the booster cylinder and from there to the actuating cylinder, in order to increase the operating power of the actuating cylinder automatically, - a pressure-controlled check valve arranged in the feed line to prevent the increased pressure from escaping to the feed line when the pressure-controlled sequence valve has changed its position, - a pressure-controlled rapid-travel valve, which is arranged between the directional control valve and the actuating cylinder for recirculating the pressurized medium from the return line of the actuating cylinder to the feed line in order to increase the work velocity, in such a way that, together with the pressure-controlled sequence valve and the booster cylinder, three velocity and power ranges (P1, P2, P3) are formed in the pressurized-medium system, characterized in that: - the pressure-controlled check valve is located between the double-acting cylinder and the pressure-controlled rapid-travel valve; - the pressure-controlled rapid-travel valve the pressure-controlled sequence valve and the pressure-controlled check valve are arranged in the same valve block; - the directions of the work strokes of the actuating cylinder and the booster cylinder are arranged to be opposite to each other; and in that - the actuating cylinder and the booster cylinder are arranged essentially parallel to each other and are attached to each other. - a pressurized-medium source, - a double-acting actuating cylinder, which includes a feed line and a return line, - a directional control valve for controlling the actuating cylinder, - pressurized-medium conductors connected from the pressurized-medium source through the directional control valve to the actuating cylinder and back, - a booster cylinder, which is fitted between the directional control valve and the actuating cylinder, and - a pressure-controlled sequence valve fitted between the directional control valve and the booster cylinder and connected to the booster cylinder in such a way that, when the pressure increases in the feed line of the actuating cylinder over the setting value of the pressure-controlled sequence valve, changes its position, feeding the pressurized medium to the booster cylinder and from there to the actuating cylinder, in order to increase the operating power of the actuating cylinder automatically, - a pressure-controlled check valve arranged in the feed line to prevent the increased pressure from escaping to the feed line when the pressure-controlled sequence valve has changed its position, - a pressure-controlled rapid-travel valve, which is arranged between the directional control valve and the actuating cylinder for recirculating the pressurized medium from the return line of the actuating cylinder to the feed line in order to increase the work velocity, in such a way that, together with the pressure-controlled sequence valve and the booster cylinder, three velocity and power ranges (P1, P2, P3) are formed in the pressurized-medium system, characterized in that: - the pressure-controlled check valve is located between the double-acting cylinder and the pressure-controlled rapid-travel valve; - the pressure-controlled rapid-travel valve the pressure-controlled sequence valve and the pressure-controlled check valve are arranged in the same valve block; - the directions of the work strokes of the actuating cylinder and the booster cylinder are arranged to be opposite to each other; and in that - the actuating cylinder and the booster cylinder are arranged essentially parallel to each other and are attached to each other. - the pressure-controlled check valve is located between the double-acting cylinder and the pressure-controlled rapid-travel valve; - the pressure-controlled rapid-travel valve the pressure-controlled sequence valve and the pressure-controlled check valve are arranged in the same valve block; - the directions of the work strokes of the actuating cylinder and the booster cylinder are arranged to be opposite to each other; and in that - the actuating cylinder and the booster cylinder are arranged essentially parallel to each other and are attached to each other.