... tubular motor for roller shutterSpecification:1) Dia.: 35mm, 45mm, 59mm, 92mm2) Torque: 3N.m,6Nm,10N.m,20N.m,30N.m,40N.m,50N.m,60N.m,80N.m,100N.m ... 5) Mechanical limit switch/Electronic limit switch is optional. Tubular motor with built-in receiver inside is optional.6) Warranty ... : 5 yearsAdvantage of TOMA tubular motor:1. Normal limit: driving with mandrel structure, easy ...