VICKERS RV2-10-S-8T-50/

Poppet style valves tend to hold up better in those repetitive-cycle situations than some other designs, and yes, this one fits that application directly. The RV2-10 series is rated for pressures up to 350 bar (5000 psi) and flows up to 300 liters per minute, so it's got the headroom to handle demanding harvest equipment without being pushed to its limits under normal operation. The 1/2" port size is worth confirming against your current hydraulic connections before ordering, but the performance envelope on this valve lines up well with what harvesting equipment typically puts it through.