Stainless steel actuator solutions from Rotork Schischek

Stainless steel actuator solutions from Rotork Schischek

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Customer demand to use the Max electric quarter-turn actuator from Rotork Schischek in more and more challenging environments has led to the development of a new range of stainless steel versions. Already use extensively in hazardous and industrial areas, clients wishing to use Max actuators in corrosive and/or maritime atmospheres can now utilise the VAS and VAM stainless steel versions.

Size S Max actuators (output torque range 5–30Nm) are now available in a cast stainless steel AISI 316 housing whilst larger Size M Max actuators (output torque 30-150Nm) utilise a fabricated stainless steel AISI 316 enclosure.

Brass nickel coated cable glands replace the standard plastic version, whilst an option for metal conduits, including a stainless steel terminal box, further adds to the package by offering armoured cable protection.
Stainless steel Max actuators retain all the features of the established Max range. Designed and manufactured to the highest possible standards and in accordance with ATEX94/9/EC, they are suitable for operation in Ex Zones 1, 2, 21, & 22 where gases, vapours, mists and dust may be present in the environment and certified for worldwide use by Ex, UL, CSA (USA & Canada), ExGostR and IECEx.

Environmentally certified to IP66, Max actuators are available with and without spring return and have options for on-off, 3-position and modulating control. Torques range from 5Nm to 150Nm without spring return and 5Nm to 60Nm with spring return.

An extremely useful self-adaptable power supply allows actuators to operate from supplies ranging from 24 to 240VAC/DC, with opening and closing times selectable on the device. Operating temperatures range from -40C to +40C with a T6 temperature classification, the best possible.

Schischek has also pioneered its own colour coding to indicate, at a glance, the appropriate application area thus avoiding any installation errors:

Yellow for Schischek ‘Ex’ products for Ex Zones 1, 2, 21 & 22.

Red for Schischek ‘Red’ products for Ex Zones 2 & 22.

Green for Schischek ‘In’ products for safe area industrial applications.

Find out more about ExMax Range quarter-turn explosionproof actuators.