Oil Skimmers We are a Leading Manufacturers, Suppliers & Service providers of Oil Skimmer. HRS Aquatreat Technologies Oil Skimmers are small, run very quietly, and use a very dependable permanent magnet motor! Standard models for industrial users include oil pickup rate to 1 gallon/hour, loose or fixed tail pulley design, and a choice of polyurethane (for coolants & oil/water) or stainless steel (for parts washing) belts in four standard length sizes. Special skimmers with other options such as special belt lengths (to 100 ft.), two belts, stainless motor covers, etc. are available.