Pöttinger has launched its new flexible Top 632A with CurveTech, a side swath rake that owes its high flexibility to an ingenious steering system on the rear rotor.
This allows the working width to be varied over a large range, depending on the follow-up machine. And obstacles and awkward field shapes can be raked around without any problems.
The twin-rotor rake reaches a working width of up to 6.30m in double swath mode. To rake a double swath or two single swaths, the rear rotor, which is connected to the front one by a flexible frame, can be steered to the left or right by a hydraulic cylinder.
Pöttinger has named the automatic steering system on the rake’s rear rotor CurveTech. Two hydraulic cylinders work together to steer the rear rotor. When cornering, an additional linkage between the front pivot point of the main frame and the hydraulic cylinders ensures optimised overlap of the two rotor units. The optimal working width is achieved as a result.
Basic Control is standard on the Top 632A with CurveTech. This pre-select system offers operators maximum operating convenience through the selection of the following modes: single swath, double swath, park, and transport.
The two hydraulic cylinders for steering the rear rotor are controlled automatically so that when the spool valve is actuated, the rear rotor swings out on the correct side. The pre-select for folding the hydraulic swath curtain is included.
The trailed Top A twin-rotor side swath rakes are equipped with tandem axles as standard. No slope is too steep for the wide chassis. Top rakes stand out in terms of ground tracking when fitted with the (optional) double jockey wheels inside the rotor arc on the rear rotor, as well as the optional field-proven Multitast tracking wheels.
The rear rotor is mounted in gimbals that, together with the freedom of movement in the frame joints, allows excellent three-dimensional ground tracking of each rotor.
