Technicial Specification of Wobbler Feeders. There are 5 different models of wobbler feeders designed by Diçelik Makine. These are the Di-Çelik-900, Di-Çelik-1100, Di-Çelik-1300, Di-Çelik-1600 and Di-Çelik-1600 models. Among the models that differ in width and length, capacities and drive powers, the Di-Çelik-1600 is the most advanced model.