... engine or 30-50 hp tractorStucture of hay cutterhay cutter including:feeding structure, chopping structure, throwing structure, ... driving structure, running gear, technical parameters of hay cutter ModelParameterOutput(T/h)Dry cotton stalk8Dry straw3Dry corn ... and reliable machine.3. Grass roller shaft coupling is universal coupling, compact structure, flexible operation, convenient disassembly.4 ...