- Vibration Monitoring
- Industrial Communications
- PLC & I/O Cards
- Automation Accessories
- Controllers & Data Acquisition
- AC Drives
- Industrial Computers
- Encoders
- Safety Switches & Guard Locking
- Isolator & Barrier
- Automation Software
- HMI Displays
- Motor Soft Starters
- Servo Drives
- CCTV & Security
- Robotics
- Pneumatic Cylinders
- Machine Vision
Brand: Schischek
Schischek ExMax-S-R Explosion-Proof Multi-Turn Actuator
Description
Multi-turn drive for armatures beyond a quarter turn
The Schischek ExMax-S-R is the multi-turn member of the size S ExMax family. Instead of a 95 degree quarter turn it rotates through n x 360 degrees, which suits dampers and rotation valves with an angle of rotation above 90 degrees. Supply is 24 to 240 VAC/DC, control is on-off or 3-position, and torque is 5 / 10 Nm (type 5.10-R) or 15 / 30 Nm (type 15.30-R).
Technical specifications
| Parameter | Specification |
|---|---|
| Types | ExMax-5.10-R (5 / 10 Nm), ExMax-15.30-R (15 / 30 Nm) |
| Angle of rotation | n x 360 degrees multi-turn with mechanical value indication |
| Motor running time | 60 / 120 / 240 / 480 s per 360 degrees, adjustable on site |
| Control mode | On-off and 3-position by wiring; wiring diagram SB 1.0 |
| Supply | 24 to 240 VAC/DC +/-10 percent; about 4 to 11 W holding, about 16 W heater |
| Duty | 100 percent ED permitted |
| Output shaft | Double square 12 x 12 mm; self-locking up to 15 Nm |
| Cable | About 1 m, diameter about 7.1 mm, M16 x 1.5; Ex-e terminal box required in hazardous areas |
| Dimensions / weight | 210 x 95 x 80 mm; about 3.5 kg aluminium; about 7 kg stainless steel |
| Delivery setting | 5 Nm and 120 s per 360 degrees (5.10-R); 15 Nm and 120 s (15.30-R) |
| Working temperature | -40 to +40 degrees C at T6; -40 to +50 degrees C at T5 |
| Certification as printed | EPS 17 ATEX 1 132 X, IECEx EPS 17.0065X; Ex db [ib Gb] IIC T6, T5 Gb and Ex tb [ib Db] IIIC T80/T95 degrees C Db; CE0158; IP66 |
When to select the R type
Use it for armatures that need several turns, such as rotation valves with an angle above 90 degrees, and for other motorized applications in zones 1, 2, 21 and 22. It has no spring return and no feedback outputs, so end-position control relies on external limit switches or the application’s own signalling. The accessories listed in the datasheet include ExBox terminal boxes, a mounting bracket, a manual override, a shaft clamp, shaft reducers and a weather shield.
What to confirm before ordering
Give the number of turns needed, the required torque, the running time per 360 degrees, voltage and the zone and temperature class. Confirm how the shaft couples to the armature.
Documents and quotation
Use the download on this page to open the manufacturer’s datasheet PUB113-443 for the ExMax-S-R. Seven Star LLC works from Muscat as an independent supplier. Tell us the full type code, torque, voltage and quantity, and the quotation will state price, lead time and stock position. Other actuators are listed in Valve Actuators.
Datasheets & Documents
- Datasheet Rotork Schischek ExMax-S-R datasheet PUB113-443 Download
Reviews (0)
About brand
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.
Related products
Frequently Asked Questions
What is the angle of rotation?
Multi-turn, n x 360 degrees, with a mechanical position indication.
What running times are available?
60, 120, 240 and 480 s per 360 degrees, selected on site.
Does it have spring return?
No. The datasheet lists no spring return or feedback for the R types.
What torque classes are listed?
5 / 10 Nm and 15 / 30 Nm, selectable on site.
Is continuous duty allowed?
Yes. The datasheet states 100 percent ED is permitted.
Reviews
There are no reviews yet.