The AZM40 solenoid
interlock has an interlocking
force of 2000 Newtons
At SPS 2019 in Nuremberg, the Schmersal Group presented a new RFIDbased compact solenoid interlock. With dimensions of 119.5 x 40 x 20 mm, the AZM40 is the smallest electronic solenoid interlock in the world. This makes it especially suitable for small safety doors and flaps. Thanks to the 180° angle flexibility of the actuator, itcan approach the AZM40 on a stepless basis, making the interlock also suitable for flaps which do not close at 90° or those that open upwards to a 45° angle. This means the angle flexibility helps the interlock easily fit into compact spaces and those which are difficult to access.
The AZM40 can also be fitted to standard 40 mm profiles without projecting. “The solenoid interlock meets the requirements of many users looking for space-saving solutions, as space required is a decisive cost factor in production,” explained Stephan Frick, Product Manager at Schmersal. Despite its compact size, the AZM40 has an amazing 2000 Newton interlocking force. “An interlock must be selected to withstand the anticipated forces. With
interlocking force of 2000 Newtons, users are on the safe side with respect to the recommendations in the standard,” said Frick. Thee integrated RFID technology allows a coding level of “high”. This means the interlock offers increased tamper protection in accordance with the requirements of DIN ISO 14119.
The AZM40 works on the bistable principle: In the event of a power cut, it retains the current position. This ensures safe operation, whatever the status of the machine. Even if there are hazardous run on movements, the safety door remains safely locked in the event of a power failure. Another advantage of the bistable principle is the consistently low energy consumption, as the interlock only requires power when the door is to be locked or unlocked.
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