A suction skimmer is sucking the oil from the water surface directly of via a weir. The Hydrotechnik OILTUB skimmers are from this family of skimmers

Technical Equipment:
Skimmer head, transfer hoses and Pump

A adhesion skimmers are using belts, drums, discs or ropes made out of oleophilic materials to which the oil sticks and is later removed by squeezing or wiping.

Technical Equipment:
Skimmer head, Power source to move the adhesion material (Disc-Belt-Drum-Rope), transfer hoses and Pump.