Belt skimmers: As the belt runs vertically through the cleaning solution, the oil clings to the face of the belt as it exits the solution, and then passes by an externally mounted wiper where the oil is scraped off the face of the belt and it is collected into a waste container for disposal. Belt skimmers are popular since they take up little space when mounted to the exterior of the machine, the belts are available in varying widths for different oil removal rates, and the belts can be purchased in varying lengths to ensure effective oil removal even as the solution levels fluctuates inside the tank.
Disk skimmers: Disk skimmers operate by rotating a large, partially submerged disk into the cleaning solution. The oil clings to the face of the disk, and then passes by an externally mounted wiper where the oil is scraped off and collected into a waste container for disposal. The advantage of a disk skimmer is a slightly higher oil pick-up rate, since the diameter of the disk can be increased for greater oil removal. However, disk skimmers require a large area to mount onto the machine, based on the diameter of the disk. A notable disadvantage is that the oil removal rate drops dramatically if the solution level does not cover at least half of the disk surface, making it unsuitable in tanks where the solution level fluctuates.
Alliance Manufacturing offers our high-capacity Aquaskim B400 belt-type oil skimmer that can be used on any of our industrial parts cleaning systems. The Aquaskim utilizes a 4-inch wide stainless steel belt which is offered in various lengths and comes with a lift-off corrosion-resistant fiberglass cover for quick and easy maintenance. The Aquaskim is designed to remove oil at a rate of up to 6 GPH, based on oil viscosity.