Harrington UM 2 Ton Underhung Motorized End Trucks 50 ft. Span
$6,087.29 - $6,167.67
For heavy-duty class "C" 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.
| 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) |
| 2 | 50 | UML/S/H-3-0250 | 4.33 | 3 - 6 | 82 | 75 | 61 | T+8.1 | M/2 | 1.5 | 11.3 -T/2 |
6.5 | T/2+ 11.9 (L/S) 12.3(H) |
| 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-3-0250 | 0.33 | 1.6 | 1.0 | 0.5 | 2.1 | 1.3 | 659 |
- 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–operating 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.
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