The John Deere 9500 and John Deere 9600 combines are both popular machines in the agricultural industry, known for their reliability and efficient harvesting capabilities. When it comes to the concaves, which are part of the threshing and separation system, there are some important differences and nuances between the two models. Here’s a detailed comparison and explanation of the differences between the concaves used in the John Deere 9500 and the John Deere 9600: