Calender machines

The use of direct drive technology enables the production of very high-quality films, as the lack of gearing means that torque fluctuations can be reduced even at low speeds. With specific functionalities in the converter combined with the servo motors, the cogging torque is almost fully compensated.

Using the flexible modular system, machine modules can also be easily connected for further processing.

Topology

Benefits of the electric drives and intelligent controller functions

Extruder drive

high energy efficiency due to synchronous technology
precise speed control in the drive and therefore high product quality in the calender raw material
coaxial structure for extruder screw enables compact machine construction
intelligent “screw relaxing” controller function for gentle torque dissipation before switching off the extruder to protect the mechanics

Calender drive

virtually cogging-torque-free motors in combination with intelligent drive functions for cogging torque compensation enable high foil quality
precise speed control of the drive axes leads to optimal foil thickness and foil surface
high torque density and compactness of the motors help to realize smaller center-to-center spacings of the rollers

Rewinder