Harrington UM 5 Ton Underhung Motorized End Trucks 50 ft. Span

$6,926.08 - $7,176.75
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For heavy-duty class single girder crane applications, Harrington underhung motorized end trucks combine superior performance with underhung space savings. Along with a full range of features, end truck kits include two trucks; two sealed, totally enclosed, non-ventilated (TENV) motors with adjustable D.C. brakes; two helical gear reducers; rubber bumpers; and bridge beam fastener set. All trucks are fully painted. Bridge fabrication prints are also included. As a member of the Crane Manufacturers Association of America (CMAA), Harrington builds UM trucks to meet current industry and regulatory codes.
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Cap. (Tons) Max Span (ft) Part No. Wheel Dia. (in) Flange Range Std. (in) Overall Length (in) Roller Base (in) Wheel Base(in) Frame Width (in) Runway Ctr. Line to Outer Edge of ET (in) Wheel Running Surf. to Bottom of Truck (in) Width Beyound Span (in) Wheel Running Surface to Upper Most Part of ET (in) Motor (in)
5 50 UML/S/H-3-550 5.51 4 - 6 82 75 55 T+9.8 M/2 1.6 11.3
6.8 T/2+ 13.7
Part No. Speed Codes L and S Speed Code H Weight
One Motor Per End Truck 3 Phase 60 Hz One Motor Per End Truck 3 Phase 60 Hz
Output (Hp) Rated Current(amps ea.) Output (Hp) Rated Current(amps ea.)
@230V @460V @230V @460V
UML/S/H-3-0535 0.5 2.1 1.3 1.0 3.3 2.0 795
  • Frames fabricated from MC channel provide superior strength, rigidity and structural integrity.
  • Reduced wheel friction due to heavy-duty side guide rollers results in smooth crane travelguide rollers are 3 1/2" O.D. with fixed steel axles.
  • Dual tread wheels for use on S or W shaped runway beams‚ each wheel fitted with 2 deep groove ball bearings, meeting L10 bearing life criteria for class C cranes.
  • Runway flange widths up to 6" standard, with wider ranges also available (trucks for patented track available).
  • Minimize assembly labor with fully machined frames‚ girder connection, bracing and collector mounting bracket holes are pre-drilled for easy installation.
  • Purchase the right component for the job‚ dedicated models for capacities of 2, 3, and 5 Ton, with maximum span increments of 35' or 50'.
  • Sealed TENV drives with quiet, smooth‚Äìoperating helical gear reducers.
  • Gear reducer is designed for easy field conversion between L and S speeds.
  • Drives are designed for crane service, with 30 minute rating and feature cooling finsfor efficient heat dissipation.
  • Thermal motor protection is standard.
  • Externally adjustable D.C. brakes allow controlled deceleration‚ adjustable up to 50% of rated motor torque.
  • Drives and brakes are compatible with Electronic Acceleration Control (EAC) and Variable Frequency Drive (VFD).
  • Drives are connectable for 230/460V-3-60 (including dual speed models).
  • Rail sweeps and drop stops are standard.