Spring Return rotary actuators with extremely quick closing time “power gone – damper closed”

Less than 1 second – this is what it takes to close rotary valves, dampers and fire dampers with the quarter-turn actuator ExMax-..-F1 – for life, health and values!

Installation areas:
ExMax-…-F1: actuators for IECEx zones 1, 2, 21, 22
RedMax-…-F1: actuators for IECEx zones 2, 22
InMax-…-F1: actuators for safe zones

Fields of application:
Air and fire protection dampers
Venting dampers
Butterfly valves
Ball valves

The new generation of Schischek actuators, with an extremely fast closing time of less than 1 second, guarantees the secure closing of dampers and valves when speed matters.
The actuators have a 90 degree rotary angle with torques ranging from 5 to 15 Nm. Schischek’s self- adaptive universal power supply allows voltages from 24 to 230V AC/ DC sensed at start- up. Size, weight and handling are almost identical to the familiar standard Schischek drives. The control mode for this version is open/ close (with or without integrated auxillary switches) with motor running times that can be adjusted, as with all Schischek actuators, on site. As one has come to expect with Schischek, overload protection and IP 66 protection class with robust aluminium housings come as standard. Stainless steel housings are available as an option.

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