Abstract: A linear actuator includes a casing that contains a moveable shaft moved by a motor in response to a drive signal and coupled to an encoder that determines an actual instantaneous position of the shaft and forms part of a control loop that adjusts the drive signal so as to ensure accurate positioning of the shaft. A temperature sensor mounted on the shaft produces a temperature signal indicative of instantaneously measured temperature, and a temperature compensator responsive to the measured temperature for generating a negative or positive offset for correcting the drive signal so as to move the shaft to a positon that is corrected for instantaneous expansion or contraction of the shaft owing to departures of the shaft's actual temperature from a known baseline temperature.

Abstract: A sealed linear encoder includes a housing adapted for attachment to a first object and a scale unit and scanning unit arranged in a hollow body of the housing, which has a slot extending in a direction of measurement. The scanning unit is mounted on a first end of a pedestal slidably accommodated within the slot and whose second end is adapted for attachment to a second object. The slot is sealed by first and second pairs of sealing lips, which together with the pedestal are configured such that the pedestal intersects the first and second pairs of sealing lips at respective locations that are axially displaced along the direction of measurement such that there is no axial overlap between the first and second pairs of sealing lips at these locations.

Abstract: A linear actuator includes a casing that contains a moveable shaft moved by a motor in response to a drive signal and coupled to an encoder that determines an actual instantaneous position of the shaft and forms part of a control loop that adjusts the drive signal so as to ensure accurate positioning of the shaft. A temperature sensor mounted on the shaft produces a temperature signal indicative of instantaneously measured temperature, and a temperature compensator responsive to the measured temperature for generating a negative or positive offset for correcting the drive signal so as to move the shaft to a positon that is corrected for instantaneous expansion or contraction of the shaft owing to departures of the shaft's actual temperature from a known baseline temperature.

Abstract: A sealed linear encoder includes a housing adapted for attachment to a first object and a scale unit and scanning unit arranged in a hollow body of the housing, which has a slot extending in a direction of measurement. The scanning unit is mounted on a first end of a pedestal slidably accommodated within the slot and whose second end is adapted for attachment to a second object. The slot is sealed by first and second pairs of sealing lips, which together with the pedestal are configured such that the pedestal intersects the first and second pairs of sealing lips at respective locations that are axially displaced along the direction of measurement such that there is no axial overlap between the first and second pairs of sealing lips at these locations.

Abstract: An encoder for detecting measured values dependent on the rotation angle of the shaft of a motor includes a rotor, which can be fixed on the shaft, and a stator housing, which can be fixed by a bearing surface on an attachment surface of the motor and has a scanning means for detecting the relative rotational position of rotor and stator. In the mounted state, the rotor is fixed on the shaft and the housing is fixed on the attachment surface in such a way that the rotor and the scanning means have a defined axial distance (h). Additionally for mounting purposes, the encoder is pushed onto the shaft until the housing is held in a mounting auxiliary position with its bearing surface at an axial distance from the attachment surface, the axial distance corresponding to the defined distance (h).

Abstract: An encoder for detecting measured values dependent on the rotation angle of the shaft of a motor includes a rotor, which can be fixed on the shaft, and a stator housing, which can be fixed by a bearing surface on an attachment surface of the motor and has a scanning means for detecting the relative rotational position of rotor and stator. In the mounted state, the rotor is fixed on the shaft and the housing is fixed on the attachment surface in such a way that the rotor and the scanning means have a defined axial distance (h). Additionally for mounting purposes, the encoder is pushed onto the shaft until the housing is held in a mounting auxiliary position with its bearing surface at an axial distance from the attachment surface, the axial distance corresponding to the defined distance (h).

Abstract: Printing plate material supply spool (PMSS) for a printing machine or plate-imaging machine and a method of loading it is provided. An exemplary PMSS can comprise a printing plate material film that is wrapped around a hollow core (HC), wherein the HC is adapted to be engaged with a heavy duty core (HDC) prior to be placed in the printing machine. The method for loading the printing plate material supply spool (PMSS) in a printing machine or plate imaging machine may comprise inserting a heavy-duty core (HDC) inside the HC of the PMSS forming an integrated core. Then the PMSS and the integrated core can be placed in the printing machine.

Abstract: Printing plate material supply spool (PMSS) for a printing machine or plate-imaging machine and a method of loading it is provided. An exemplary PMSS can comprise a printing plate material film that is wrapped around a hollow core (HC), wherein the HC is adapted to be engaged with a heavy duty core (HDC) prior to be placed in the printing machine. The method for loading the printing plate material supply spool (PMSS) in a printing machine or plate imaging machine may comprise inserting a heavy-duty core (HDC) inside the HC of the PMSS forming an integrated core. Then the PMSS and the integrated core can be placed in the printing machine.