Agricultural equipment comprising: - a frame configured to be hung on a tractor; - a power connector fixed to said frame and configured to be connected to a tractor power take-off; - a rotor shaft fixed to said frame in a rotatable manner with respect to a rotation axis; - a transmission unit fixed to said frame and connected to said power connector, for receiving and transmitting power to a median section of said rotor shaft for actuating said rotor shaft; said transmission unit comprises a head assembly which has: - a casing; - a first conical toothed wheel fixed to said casing in a rotatable manner according to a primary axis perpendicular to said rotation axis and connected to said power connector; - a conversion member having a hub, a second conical toothed wheel and a third toothed wheel, said second and third toothed wheels being keyed onto said hub which is fixed to said casing in a rotatable manner according to a secondary axis parallel to said rotation axis; said transmission unit further comprising a lower unit which has a fourth toothed wheel connected to said second toothed wheel and which lies on a transmission plane where further lies said primary axis; said lower unit being fixable to said head assembly such that said primary axis and said third toothed wheel lie on said transmission plane; said casing and said conversion member being configured to be assembled in a first configuration and in a second configuration, according to which, following a rotation in an operating direction of said first toothed wheel - in said first configuration said conversion member drives said fourth toothed wheel into a first rotating direction; - in said second configuration said conversion member drives said fourth toothed wheel into a second rotating direction which is opposite to said first rotating direction. - a frame configured to be hung on a tractor; - a power connector fixed to said frame and configured to be connected to a tractor power take-off; - a rotor shaft fixed to said frame in a rotatable manner with respect to a rotation axis; - a transmission unit fixed to said frame and connected to said power connector, for receiving and transmitting power to a median section of said rotor shaft for actuating said rotor shaft; - a casing; - a first conical toothed wheel fixed to said casing in a rotatable manner according to a primary axis perpendicular to said rotation axis and connected to said power connector; - a conversion member having a hub, a second conical toothed wheel and a third toothed wheel, said second and third toothed wheels being keyed onto said hub which is fixed to said casing in a rotatable manner according to a secondary axis parallel to said rotation axis; said transmission unit further comprising a lower unit which has a fourth toothed wheel connected to said second toothed wheel and which lies on a transmission plane where further lies said primary axis; said lower unit being fixable to said head assembly such that said primary axis and said third toothed wheel lie on said transmission plane; said casing and said conversion member being configured to be assembled in a first configuration and in a second configuration, according to which, following a rotation in an operating direction of said first toothed wheel - in said first configuration said conversion member drives said fourth toothed wheel into a first rotating direction; - in said second configuration said conversion member drives said fourth toothed wheel into a second rotating direction which is opposite to said first rotating direction.