A Silage block cutter or also known as a silo grab or shear grab, is an implement used to cut blocks of silage from a silage pit/clamp. It is connected to a tractor via the three-point linkage or mounted on a front end loader. It is powered by the tractors hydraulic system.
It usually has spikes on the bottom and a large rectangular section with blades on it that cut the block using two hydraulic rams. Before the invention of shear grabs farmers had to use silage knives, a fork and a link box to get the silage into the livestock, cutting and loading it by hand.
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