06/08/2012 - 04:00 am

VFD Trolley Drives Now Standard on EMH Hoists

Valley City, Ohio-based EMH’s Model E Single Girder Wire Rope Hoist line now includes a standard, full-featured VFD trolley drive that incorporates the following:

  • EMH Monorail Standard two-speed infinitely variable control at 65/16 fpm.
  • Smooth, controlled speed transitions from low to high and high to low.
  • Adjustable DC injection dynamic braking to virtually eliminate brake wear and maintenance.
  • Large 4-digit LED displays speeds, faults, and individual parameters.
  • Designed and built for crane service; not a retrofitted general purpose drive.
  • Complete, self-monitoring, fail-safe on-board diagnostics.
  • Control wiring diagnostics and display.
  • Brake control test diagnostics.
  • Fault circuit test diagnostics.
  • Rated for temperatures up to 135 degrees F.

The EMH E Hoist line includes capacities from 1 to 25  tons; EMH also manufactures and distributes a complete line of standard double girder and custom engineered wire rope hoists.

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