Electric Clutches

Clutch powered by current. Through the attraction and release of magnetic particles, precise rewinding torque control is achieved. With the possibility of integrating various sensors, the web tension control can be automated accurately from large to small roll diameters.

OPERATION

A 24V power supply connection is required. The clutch receives a 0-10V signal, manually regulated by a potentiometer or via PWM electronics, which manage sensor data and adjust tension for precise real-time web tension control.

Assembly

For double-supported shafts

For cantilever shafts

Web Tension Control

Open-loop control

In these systems, regulation can be carried out manually by the operator or via a specialized sensor measuring the roll diameter. It is important to note that these systems lack feedback, meaning there is no automatic mechanism to correct the control action in real-time.

Closed-loop control

This type of system usually employs devices like dancers or load cells to monitor material tension. These devices compare the measured tension with a preset reference value. Thanks to this setup, superior process control accuracy is achieved, enabling automatic adjustments based on detected differences.