Ceiling-Mounted Monorail Cranes. Capacities: up to 2 tons. Span Lengths: unlimited. Trussed Tracks: steel, stainless steel, or Alu-Track® enclosed tracks. Support Structures: ceiling-mounted or freestanding. Spanco monorails offer great layout flexibility, Perfect Steerable Transfer Cartluding curved track, hangers for slopes (up to 14 degrees), multiple tracks, and