The Sandvik offers these oil skimmers for simultaneous separation of oil from water on a steel belt conveyor. These units have the ability to resist oil pollution in water outlets through its operating principle that oil-adhesion to steel is greater than water. One end of these skimmers are directly immersed in the contaminated water that makes the steel belt collect oil film while the water drips off. This in turn makes these skimmers deliver a separation rate near 100 percent.