SIFANG brand 1KS 35-40-50 Disc Furrower Series features Increased module tooth count / thicker input primary shaft / thicker bevel pinion shaft / reinforced.housing and small parts / thicker frame and cover plates / up-sized bearings.Added one additional bearing behind the internal bevel pinion gear / added one bearing behind the large bevel gear shoulder step. New forged reinforced adjustable blade disc (adapter hub spline): extended and enlarged internal spline for greater durability and wear resistance; adjustable to 4 different furrow widths. The side-offset furrower can dig furrows close to field ridges.Trapezoidal furrow design offers high strength and collapse resistance — highly practical.