Combine harvester platform comprising a chassis, a reel, a cutter bar, and a reel and cutter bar floating system comprising in turn: a reel support element; a cutter bar support member; wherein the reel support element secures the reel in a horizontal position on the combine harvester platform; and wherein the cutter bar support element secures the cutter bar in a horizontal position on the combine harvester platform; the reel and cutter bar floating system comprising: a reel pivot element; wherein the reel pivot element mechanically connects the reel support element and the cutter bar support element; and wherein the reel pivot element is configured to regulate the fluctuation between the cutter bar and the reel, characterized in that the reel pivot element comprises a spring actuator and a cutter bar pressure relief spring; wherein the cutter bar pressure relief spring provides stretch and tension forces to balance the resulting weight of the cutter bar; wherein the spring actuator is configured to modify the stretch and tension forces of the cutter bar pressure relief spring and control the pressure of the cutter bar over the ground through an opening of the spring actuator; wherein the smaller the opening of the spring actuator, the lower the pressure of the cutter bar over the ground, and the greater the opening of the spring actuator, the greater the pressure of the cutter bar over the ground. a reel support element; a cutter bar support member; wherein the reel support element secures the reel in a horizontal position on the combine harvester platform; and wherein the cutter bar support element secures the cutter bar in a horizontal position on the combine harvester platform; the reel and cutter bar floating system comprising: a reel pivot element; wherein the reel pivot element mechanically connects the reel support element and the cutter bar support element; and wherein the reel pivot element is configured to regulate the fluctuation between the cutter bar and the reel, characterized in that the reel pivot element comprises a spring actuator and a cutter bar pressure relief spring; wherein the cutter bar pressure relief spring provides stretch and tension forces to balance the resulting weight of the cutter bar; wherein the spring actuator is configured to modify the stretch and tension forces of the cutter bar pressure relief spring and control the pressure of the cutter bar over the ground through an opening of the spring actuator; wherein the smaller the opening of the spring actuator, the lower the pressure of the cutter bar over the ground, and the greater the opening of the spring actuator, the greater the pressure of the cutter bar over the ground. a reel pivot element; wherein the reel pivot element mechanically connects the reel support element and the cutter bar support element; and wherein the reel pivot element is configured to regulate the fluctuation between the cutter bar and the reel, characterized in that the reel pivot element comprises a spring actuator and a cutter bar pressure relief spring; wherein the cutter bar pressure relief spring provides stretch and tension forces to balance the resulting weight of the cutter bar; wherein the spring actuator is configured to modify the stretch and tension forces of the cutter bar pressure relief spring and control the pressure of the cutter bar over the ground through an opening of the spring actuator; wherein the smaller the opening of the spring actuator, the lower the pressure of the cutter bar over the ground, and the greater the opening of the spring actuator, the greater the pressure of the cutter bar over the ground.