John Deere 600F Series These grain heads are intended to be used with smaller or older John Deere combines, like 9400/9500/9600/STS combine. They feature crop dividers to move easily in soybean crop. Model: 620F Price: 20,000$ Max working speed: 10 km/h Working Width: 6.0 M Model: 622F Price: 22,000$ Max working speed: 10 km/h Working Width: 6.6 M Model: 625F Price: 25,000$ Max working speed: 10 km/h Working Width: 7.6 M Model: 630F Price: 30,000$ Max working speed: 10 km/h Working Width: 9.1 M Model: 635F Price: 35,000$ Max working speed: 10 km/h Working Width: 10.6 M