Siemens manufactures an explosion proof AC motor with a cast iron housing. The rated speed for these motors would be 750 - 3600 min-1 or 900-3600 min-1 with a rated torque 0.3 - 10300 Nm or 1.5-1772 lb-ft. This line of explosion proof motors meet the standards of Class I, Group D; Class II, Groups F&G; and Division 1, hazardous areas. Applications include the oil industry, chemical plants, gas works, agriculture or plastic and wood processing industries.