The TMB excavator mount and hydraulically driven portable screening plant are compact, lightweight and easy to operate. They are offered in four sizes for carriers ranging from six to 40 tons. A double-acting single pump flow kit, like that used to operate a thumb, crusher, or shear, is all that is needed to achieve the two-way drum rotation this attachment offers. Or, units can operate in a single direction with normal hydraulic breaker plumbing. An in-body control valve allows drum rotation speed to be fine-tuned for smooth operation in a variety of applications, and an assortment of screen sizes from 3/8-inch (9 mm) to four inches (100 mm) are available. A typical application for the TMB trommel screening bucket includes screening C&D debris out of soil and sand to make recycling efficient and keep dumping requirements to a minimum.
