The UGM 4″ submersible motors of Swiss Pump are fully stainless steel, rewind able and water-cooled. UGM 6“,7“, 8“, 9“, 10“ are made of cast-iron top and bottom with epoxy-coated paint. The other parts are of stainless steel SS304. Motors for high water temperature up to 70°C with PE2-PA winding and motors made of fully stainless steel SS304 or SS316 are available on request.