The derricks have been specifically designed for installation of towers, poles and vertical structures and they are manufactured in tubular welded light aluminium alloy reticular structures.
They are available in sections of different lenghts to be conncted to reach the required total lenght.
The derricks have swivel head and swivel base and they come standard with external rope passage.
Special derricks are available upon request (internal rope passage; non standard lenghts).
Max angle allowed: 20°