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UML-0335, Harrington UM

Harrington UM 3 Ton Underhung Motorized End Trucks

Harrington UM — Single Girder Underhung
Motorized End Trucks

Product Description

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.

Product Dimensions

Capacity
(Tons)
Product
Code
Max.
Span
(ft.)
Wheel
Dia
(in)
Flange
Range
T (in.)
Overall
Length
A (in)
Roller
Base
B (in.)
Wheel
Base
D (in.)
Frame
Width
M (in.)
Runway Ctr.
Line-Outer Edge
N (in.)
Wheel Running Surface to
Bottom Most Part
Y (in.)
Width
Beyond Span
X (in.)
Wheel Running Surface to
Upper Most Part
Y (in.)
Motor
G (in.)
3 UM L/S/H/D-3-0335 35 4.33 3 - 6 60 53 35 T + 8.1 M/2 1.5 11.3 - T/2 6.5 T/2 +
11.9(L/S)
12.3(H)
13.3(D)
UM L/S/H/D-3-0350 50 82 75 61

Harrington UM End Truck

Product Specifications

Capacity
(Tons)
Product
Code
Max.
Span
(ft.)
Speed Codes L and S Speed Code H Speed Code D Weight
(lbs/pr)
One Motor Per End Truck
3 Phase 60 Hz
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.)
Output
(HP)
Rated Current
(amps ea.)
@230V @460V @230V @460V @230V @460V
3 UM L/S/H/D-3-0335 35 0.33 1.6 1.0 0.5 2.1 1.3 0.33 / 0.08 1.6 / 1.1 0.9 / 0.8 543
UM L/S/H/D-3-0350 50 666

Product Features

  • 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.

Downloads and Other Documents

Span (ft) - Speed (fpm)
Available in Dual and Single Speeds. The standard Single Speed 40 fpm with a span of 35 feet.
Standard UML-3-0335
Flange Extension Kit
Optional Flange Extension Kit for flange widths beyond 6 inches. Note: These options will extend lead time
Freight
This product requires “special handling” and requires a freight surcharge that is included in the cost of the product.
Special Handling - Freight Surcharge
Summary
Base Price: $4,238.00 Customized Price: $4,738.00
  • 35 ft. Span- Single Speed 40 fpm
  • None
  • Special Handling - Freight Surcharge