aggregate+mining solutions

Aggregate processing and handling at NMI Industrial mechanical contractors in California

Prewash Screening Plant

An iconic aggregates client needed a turnkey prewash facility to remove clay from mined materials before they entered an existing processing plant.  NMI Industrial designed, fabricated and installed the screening structure, screens, piping, conveyors, chutes, and connecting structures for this industrial scale facility, including the complete prewash system.


  • Design, fabrication, installation
  • Conveyance control & automation
  • Machine design & development
  • Environmental problem solving
  • Aggregate + Mining | materials processing


Industrial millwright craftsmen

We specialize in construction for the aggregate and mining industries — new facilities, plant expansion, modification, upgrading, repair, maintenance and relocation.

  • Conveyors, chutes & hoppers
  • Crushers
  • Dewatering systems
  • Process piping
  • Feeders, flumes & hoppers
  • Loadout equipment
  • Overland systems
  • Reducing, screening & sizing
  • Separators & shakers
  • Stacking equipment
  • Washing systems