WAMGROUP

To date, WAMGROUP has manufactured nearly one million screw conveyors in various lengths and configurations. As a result, the WAMGROUP daughter OLI became the world market leader within a few years. Today WAMGROUP aims to be the main global reference point in providing solutions in the areas of Bulk Solids Handling and Processing, Wastewater Treatment and Renewable Energy Generation. In more than five decades, WAMGROUP has become the world's leading manufacturer of screw conveyors and feeders, with an annual production of tens of thousands of units in various sizes, ranging from mass-produced types with smaller diameters to Archimedean water screw pumps with a helical diameter of more than four metres. The construction boom of the 1960s in Italy had produced numerous manufacturers of concrete batching plants who had a high demand for cement screw conveyors. At that time, commercially available bearings, power transmissions, and drive units were used to build screw conveyors, but they often did not meet the special requirements under tough operating conditions. Until then, manufacturers of screw conveyors had been dependent on flanged or foot-mounted geared motors available on the market, which were connected to the screw via a flexible coupling or chain transmission. The production of mechanical components on custom-built machines and jigs guaranteed perfect centring of the screw shafts and parallelism of the housing coupling flanges.