- Vibration Monitoring
- PLC & I/O Cards
- Industrial Communications
- Automation Accessories
- Controllers & Data Acquisition
- AC Drives
- Isolator & Barrier
- Encoders
- Industrial Computers
- Safety Switches & Guard Locking
- Automation Software
- HMI Displays
- Motor Soft Starters
- CCTV & Security
- Servo Drives
- Robotics
- Pneumatic Cylinders
- Machine Vision
Schischek
Schischek makes explosion-proof HVAC products, including damper and valve actuators, sensors and controllers, and is now a Rotork brand. Seven Star LLC lists the Schischek ExMax and RedMax rotary actuators on this page and supplies them from Muscat as an independent supplier, with each type code checked against the manufacturer’s datasheet.
Read more about Schischek 
Brand profile
About Schischek
- Speciality
- Explosion-proof hvac damper and valve actuators
- Listed with us
- 1 product
Schischek products by category
Schischek makes explosion-proof HVAC products, including damper and valve actuators, sensors and controllers, and is now a Rotork brand. Seven Star LLC lists the Schischek ExMax and RedMax rotary actuators on this page and supplies them from Muscat as an independent supplier, with each type code checked against the manufacturer’s datasheet.
Schischek actuator families listed here
The ExMax line is ATEX tested for zones 1, 2, 21 and 22 and comes in a size S housing (5 to 30 Nm) and a size M housing (24 to 150 Nm). The RedMax line shares the size M housing but is tested for zone 2 and zone 22 locations. Versions on this page include 3-position and on-off drives, spring return actuators, the BF type with an Ex-i tripping circuit for fire damper temperature triggers, 4 to 20 mA and modulating Y types with feedback, and a multi-turn type. All run from a 24 to 240 VAC/DC supply unless the datasheet states 24 V only.
Ordering Schischek actuators: what we need
Send the complete type code including the suffix and coating option, the torque, the running time, the supply voltage and the zone and temperature class of the installation. Terminal boxes, brackets, weather shields and shaft adapters are listed in each datasheet as separate accessories, so name them in the request.
Request a Quote for Schischek Products
Looking for Schischek parts not listed here, or pricing for a project? Send us the part numbers and quantities. Seven Star LLC sources genuine Schischek products for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
Frequently Asked Questions
What is the difference between Schischek ExMax and RedMax actuators?
ExMax actuators are ATEX tested for zones 1, 2, 21 and 22, while the RedMax line is tested for zone 2 (gas) and zone 22 (dust) only. Check the zone of the installation before choosing.
What does the BF suffix on a Schischek actuator mean?
BF types are spring return actuators with two auxiliary switches and an intrinsically safe Ex-i tripping circuit that connects an ExPro-TT safety temperature trigger, used on fire dampers.
Why do some Schischek datasheet names differ from the actuator type codes?
Datasheet file names such as ExMax-S-3P identify the document. The type codes on the actuator follow the tables inside, for example ExMax-5.10 or ExMax-15-F, so send the code from the nameplate.
Do Schischek actuators need a terminal box?
The datasheets state that connections in hazardous areas require a terminal box certified for the zone, such as an ExBox for ExMax and a RedBox for RedMax.
Is Seven Star LLC a distributor of Schischek?
No. Seven Star LLC is an independent supplier in Muscat that sources genuine Schischek products through commercial channels, checks type codes against the manufacturer's datasheets, and provides the datasheet and the documents the manufacturer issues with the order on request.