This motor is used for Roll down Shutters or Shades.
Product Description:
Motors without manual override.
100 Nm* and higher power rating, Speed RPM 19
This comes in 70 millimeter and 90 millimeter sizes with corresponding crown and drive.
The actual product may have a different appearance from the ones shown in the pictures, but will still meet requirements of performance in operation.
 
*Nm = Newton-meter which is a measurement unit used to measure a force that causes things to rotate. The higher the Nm number, the stronger the motor.