... Ensure 20000 times proper working For roller shutter,awning,curtain 220/110V,3-50Nm electric tubular motorTubular motors :Suitable for Awning , ... motor can be used in roller curtain, metal rolling door, roller shutter windows , roller garage door, awnings etc.Tubular motors advantages:1.buil-in ... diameter RY45-30/1750/60Hz5min220/110V270/260W30Nm17rpm/min45mm Automatic roller shutter tubular motor