Colle’s UNICO system covers a full automated work cycle for the production of single-piece manhole bases with a duct.

Production of negative components with TOPMILLING

Our TOPMILLING centre performs machining on polystyrene blocks to make the negative components of the ducts and the moulds of the manhole bases.

Our TOPMILLING machine operates with a dedicated parameter-based software and it can produce any kind of diameter, any kind of curved joint for manhole bases, from diameters measuring 600mm to diameters measuring 2000mm with joints, plus from diameters ranging from 150mm to 1600mm.

Casting moulds

Openable and with a collapsible core

Negative extraction

After the pattern drawing stage, there is a duct extraction system that can be easily reused.