Appareil motorisé pour déterminer la limite de liquidité, Casagrande

At the core of the Motorized Liquid Limit Device (Casagrande)  is a wear-resistant cam–linkage assembly. The motor rotates the cam at a constant rate; during each cycle, the brass sample cup is lifted and released from a calibrated height onto a standard-hardness rubber base. Drop height is easily adjusted and locked using a fine-adjustment limiting screw and reference gauge, providing stable calibration across extended test series. A mechanical impact counter clearly records the number of blows. The motor compartment is enclosed, protecting the drive system from dust and splashes and extending service life.