Bar loader apparatus for use at a machine tool, in particular at a turning machine, wherein the machine tool comprises: a plurality of workpiece spindles being respectively configured to move in a longitudinal direction, which is axially arranged with respect to the spindle axis of the respective workpiece spindle, and being respectively configured to receive an elongated workpiece, and a turret body being rotatably supported about a turret axis by a machine frame of the machine tool, the bar loader apparatus comprising: - a storage portion configured to store one or more elongated workpieces, - a loading system (350, 360, 370) configured to load at least one elongated workpiece from the loading system to the at least one workpiece spindle of the machine tool, and - a transfer device configured to transfer an elongated workpiece from the storage portion to the loading system, wherein the loading system comprises, for each of the plurality of workpiece spindles of the machine tool, a respective associated workpiece guide channel assembly (351, 361, 371) for receiving and guiding a respective one of the elongated workpieces, and a rotatably supported turret fixture body being configured to be attached to the turret body for rotating together with the turret body of the machine tool about the turret axis, wherein each respective workpiece guide channel assembly includes a fixed guide channel portion and at least one slidable guide channel portion (351; 371), the at least one slidable guide channel portion (351; 371) being movable into the longitudinal direction of the spindle axis of the respective associated workpiece spindle, characterized in that the bar loader apparatus further comprises: - a rotatable pot body being fixed to rotate with the turret fixture body, the turret body and the plurality of workpiece spindles being supported by the turret body, the rotatable pot body being configured to collect cooling and/or lubricating liquid output from back-side portions of the workpiece spindles. a plurality of workpiece spindles being respectively configured to move in a longitudinal direction, which is axially arranged with respect to the spindle axis of the respective workpiece spindle, and being respectively configured to receive an elongated workpiece, and a turret body being rotatably supported about a turret axis by a machine frame of the machine tool, the bar loader apparatus comprising: - a storage portion configured to store one or more elongated workpieces, - a loading system (350, 360, 370) configured to load at least one elongated workpiece from the loading system to the at least one workpiece spindle of the machine tool, and - a transfer device configured to transfer an elongated workpiece from the storage portion to the loading system, - a storage portion configured to store one or more elongated workpieces, - a loading system (350, 360, 370) configured to load at least one elongated workpiece from the loading system to the at least one workpiece spindle of the machine tool, and - a transfer device configured to transfer an elongated workpiece from the storage portion to the loading system, wherein the loading system comprises, for each of the plurality of workpiece spindles of the machine tool, a respective associated workpiece guide channel assembly (351, 361, 371) for receiving and guiding a respective one of the elongated workpieces, and a rotatably supported turret fixture body being configured to be attached to the turret body for rotating together with the turret body of the machine tool about the turret axis, wherein each respective workpiece guide channel assembly includes a fixed guide channel portion and at least one slidable guide channel portion (351; 371), the at least one slidable guide channel portion (351; 371) being movable into the longitudinal direction of the spindle axis of the respective associated workpiece spindle, characterized in that the bar loader apparatus further comprises: - a rotatable pot body being fixed to rotate with the turret fixture body, the turret body and the plurality of workpiece spindles being supported by the turret body, the rotatable pot body being configured to collect cooling and/or lubricating liquid output from back-side portions of the workpiece spindles. - a rotatable pot body being fixed to rotate with the turret fixture body, the turret body and the plurality of workpiece spindles being supported by the turret body, the rotatable pot body being configured to collect cooling and/or lubricating liquid output from back-side portions of the workpiece spindles.