BEDICO AUTOMOTIVES is the leading exporter of FEEDER CHAINS They are heavy and cause premature wear on the drive mechanism and feeder house bottom. They often wear out sprockets and stretch chains prematurely because of their weight. The slats are virtually impossible to straighten and because they are riveted you are almost forced into buying a new feeder chain every time a slat bends.

This is how it works :

As the trailing edge of the slat goes around the drive sprocket it acts like a flipper and speeds up to force your crop into the threshing area the first time around.
The design of the slat makes it impossible for your crop to follow it back around. Back feeding is eliminated