Double Girder Crane

Double Girder Crane has a higher lift distance than Single Girder Crane because a hoist is installed between two girders. It can be moved on manual but in case span is more than 6 meter and rated load is more than 500kg, it can be moved with electricity by using the drive unit as shown below.AllowableLoad(kg) Max. Allowable Span(M) lw GIRDERLENGTH(M) TRACK SIZE Min. Size h5(mm) 80 8 10 I 450 125 6.2 8 I 450 250 5 6 I 450 7.6 9 II-L 650 500 3.1 4 I 450 6.5 7 II-L 650 8.8 11 II 700 1000 4.3 5 II-L 650 6.1 7 II 700 8.5 9 II-T 700 1500 4.6 5 II 700 6.5 7 II-T 700 2000 3 4 II 700 6.0 7 II-T 700