Wobbler Feeder and GNRK 110 Jaw Crusher in One Mobile System: Clean Pre-Screening on Muddy Feed

In this mobile system developed by our engineering team, we have brought a vibrating rock feed hopper, a wobbler feeder and a 110 primary jaw crusher together on a single line. The aim of the plant is to separate run-of-mine material with a high bypass share from the system before it enters the crusher.

The line's total capacity is in the range of 250 to 400 tonnes per hour, and it can easily be connected to any stationary or mobile crushing and screening plant, or to a vibrating screen, as required.

The wobbler feeder is used to solve a problem that a grizzly feeder cannot overcome. With damp and sticky material the grizzly gaps clog; the fine fraction cannot pass to the bypass and is loaded onto the crusher for no reason. The rotating shafts of the wobbler, on the other hand, carry the material forward and separate it at the same time, so no clogging occurs.

The higher the bypass share, the wider the gap between the two systems becomes.

If a large part of the run-of-mine is already at the target size, every extra tonne entering the crusher means wasted energy and unnecessary wear. The cleaner the pre-screening, the lighter the crusher's load, and the far more efficient screening becomes on the vibrating screen as well.

The crushing section of the line uses the 110 body: the GNRK 110 has a 1100×850 mm feed opening, a 150–225 mm discharge setting, 110/132 kW motor power and a capacity of 200–350 t/h.