(4) New models of HYDRA-PUSH Manure Spreaders from H&S Manufacturing in Marshfield Wisconsin are now available. The 425 and 550 bushel models are available with a horizontal beater, or a rear bottom drive gearbox vertical beater with an overrunning clutch. All models have a hydraulic push-off system with two independent hydraulic push cylinders that sequence to reduce push-off forces for fast unloading of material. Other features include a solid virgin grade poly floor, sides, hydraulic endgate, a poly bump rail, constant velocity PTO, and a choice of clevis or bullnose hitch. Options include a manual or electric adjust hydraulic variable speed pusher and a fit-around screen extension for vertical beater models.