100 To 1000 Tons Per Unit
The Heavy Duty Series (HD Series) is an extension of the OT/NT/T Series, following the same design but with capacities from 100 to 1000 metric tons. Several of these roller capacities share the same overall height, enabling users to mix sizes without shims. Long and Wide versions of the 150-ton and 200-ton capacities are available — Wide versions are offered with one complete (wide) chain or with two individual chains and a center plate dividing them.
Heavy structures skate almost effortlessly on Bombay Engineering Heavy Moving Rollers. Typical applications range from installing steam generators or precipitators, rolling entire bridges, advancing launching trusses, skidding drill works aboard offshore rigs, to relocating entire multi-story structures. The same top plate configurations are available for OT, T and NT Series: the "T" style is flush with the frame, the "NT" style overhangs the body at the end, and the "OT" style overhangs the body sides. Standard hole patterns are supplied; the user can specify no holes if preferred. Special modifications such as drilled and tapped holes, and short or wide versions, are also available.
