Belt alignment switches
When bulk materials are not evenly spread down the middle of a conveyor belt, or when the belt's pulleys or idlers become dirty, this can cause the belt to move off-centre – which in turn can lead to belt damage and/or falling materials.
In order to prevent this, belt alignment switches are mounted on both sides of the conveyor belt. They monitor the alignment of the belt and transmit a signal if it becomes misaligned. This can lead to the conveyor system being switched off, the belt being automatically adjusted and/or the triggering of additional alarms.
Belt alignment switches are thus true switchgear specialists. Due to the ambient conditions in which bulk materials are conveyed, the switches must have a very robust design and be suitable for use in extreme temperatures. (Dust) explosion protection requirements also often have to be met.
The steute range includes several series in metal housings and with high protection classes (IP 6x). They differ in e.g. size, method of unlocking (lever, push button) and temperature range (from -40 °C up to +100 °C).