Hydrostatic linear drive system comprising - a single-action cylinder with a first hydraulically active surface and a first liquid connector, via which the first hydraulically active surface can be loaded with a hydraulic liquid in an extension direction of the cylinder, - a synchronous cylinder with a second and a third hydraulically active surface (13, 14) of matching size, and with a second and third liquid connector (15, 16), it being possible for the second hydraulically active surface to be loaded via the second liquid connector in the extension direction and for the third hydraulically active surface to be loaded via the third liquid connector with the hydraulic liquid in a retraction direction which is opposed to the extension direction, - the first hydraulically active surface of the single-action cylinder being greater than the hydraulically active second or third hydraulically active surface (13, 14) of the synchronous cylinder, - a first hydraulic pump with a first and a second pressure connector (21, 22) for providing a volumetric flow of the hydraulic liquid, the flow direction (23.1, 23.2) of the volumetric flow between the pressure connectors (21, 22) being reversible, - a closed hydraulic circuit which is under preload pressure and comprises the synchronous cylinder and the first hydraulic pump, the first pressure connector being connected to the second liquid connector, and the second pressure connector being connected to the third liquid connector, in each case in a fluid-conducting manner, - an equalizing container for the hydraulic liquid, which equalizing container is open to the surroundings and is connected in a fluid-conducting manner to the first liquid connector of the single-action cylinder, - a first shut-off member in the fluid-conducting connection between the equalizing container and the single-action cylinder, the first shut-off member permitting a throughflow of the hydraulic liquid in both directions, - a second hydraulic pump with a low pressure connector and a high pressure connector configured for the temporary provision of a volumetric flow of the hydraulic liquid, the low pressure connector being connected in a fluid-conducting manner to the equalizing container, and the high pressure connector being connected in a fluid-conducting manner to the first liquid connector of the single-action cylinder, and - a mechanical coupling between the single-action cylinder and the synchronous cylinder. - a single-action cylinder with a first hydraulically active surface and a first liquid connector, via which the first hydraulically active surface can be loaded with a hydraulic liquid in an extension direction of the cylinder, - a synchronous cylinder with a second and a third hydraulically active surface (13, 14) of matching size, and with a second and third liquid connector (15, 16), it being possible for the second hydraulically active surface to be loaded via the second liquid connector in the extension direction and for the third hydraulically active surface to be loaded via the third liquid connector with the hydraulic liquid in a retraction direction which is opposed to the extension direction, - the first hydraulically active surface of the single-action cylinder being greater than the hydraulically active second or third hydraulically active surface (13, 14) of the synchronous cylinder, - a first hydraulic pump with a first and a second pressure connector (21, 22) for providing a volumetric flow of the hydraulic liquid, the flow direction (23.1, 23.2) of the volumetric flow between the pressure connectors (21, 22) being reversible, - a closed hydraulic circuit which is under preload pressure and comprises the synchronous cylinder and the first hydraulic pump, the first pressure connector being connected to the second liquid connector, and the second pressure connector being connected to the third liquid connector, in each case in a fluid-conducting manner, - an equalizing container for the hydraulic liquid, which equalizing container is open to the surroundings and is connected in a fluid-conducting manner to the first liquid connector of the single-action cylinder, - a first shut-off member in the fluid-conducting connection between the equalizing container and the single-action cylinder, the first shut-off member permitting a throughflow of the hydraulic liquid in both directions, - a second hydraulic pump with a low pressure connector and a high pressure connector configured for the temporary provision of a volumetric flow of the hydraulic liquid, the low pressure connector being connected in a fluid-conducting manner to the equalizing container, and the high pressure connector being connected in a fluid-conducting manner to the first liquid connector of the single-action cylinder, and - a mechanical coupling between the single-action cylinder and the synchronous cylinder.