KOBELCO 7055-2 Brand Kobelco Model & Type 7055-2Crawler Crane Tonnage 55TON Specifications Max. Boom Length: 51.8m.Max. Lifting Capacity: 55t x 3.7m.Hook: 55t, 45t, 32t, 19t, 6,6 (ball).Counterweight: 15,6t.Jib Length: 16,8m – 19,8m.