Mainframe

Mainframe Fabrication

At the core of the MMD Feeder is the fully welded fabricated mainframe, which utilises rolled steel beams, ribbed and stiffened creating a robust lightweight construction to minimise supporting steelwork and ease site installation. This design also creates an open structure, for convenient visual inspections even whilst the feeder is operational.

The construction starts with two main beams that run along the entire length of the feeder, which are tied together with cross beams to create the main feeder framework, each beam presenting open flanges for convenient and substantial mounting points for external framework i.e. a hopper. The fully welded construction continues with more beams running along the length of the feeder, onto which are mounted the impact rails, to transfer severe impact loads directly into the main framework.

In certain underground environments and existing plants where space is restricted, the mainframe can be manufactured in sections and bolted together at the final siting location to facilitate easy assembly.