58" AMERICAN UNDER-FLOOR RAILWAY RE-PROFILE / TRUING WHEEL LATHE: YOBRO #24056

American Underfloor Wheel Truing Machine.

Machine New was over $1,500,000
(Only 284 hours since it was installed new) 

Machine Specifications:
Wheel Set Dimensions Maximum Wheel Diameter 58 in.
Minimum Wheel Diameter 23 in.
Maximum Axle Load 50 tons 

Fabricated Beam Maximum Length 128 in.
C-Frame Maximum Width 245 in.
C-Frame Maximum Height 117 in.
Total Weight 45000 lbs.
Pit Dimensions Length 325 in. 8574 mm Width 315 in. 7947 mm Depth 122 in. 3065 mm

General Specifications:

Production: Up to 10 wheel sets per 8-hour shift
Diameter Accuracy +/- 0.020 in. +/- .5 mm
Eccentricity +/- 0.020 in. +/- .5 mm
Profile Accuracy +/- 0.010 in. +/- .25 mm

Surface Finish: 200 RMS axially,150 RMS on wheel circumference
Milling Cutter Speed 30 RPM Hydraulic Centering Ram Force 6500 lbs.

Hydraulic Hold-Down Force 15 tons

Utility Requirements: Electrical Power 76 kW
Hydraulic Reservoir 90 US gallons

Machine configuration: underfloor pit-mounted dual Spindle milling machine, capable of simultaneously re-profiling both wheels of a railway wheelset using the axle centers as the machining reference point.

It is capable of profiling wheelsets to necessary specifications concentrically and plane dimensions in any of the following situations:
1- While the wheelset is under a locomotive, passenger or freight car, transit vehicle, or other rolling stock.

2- While the wheelsets are mounted in a truck.

3- While the wheelset is demounted as a single set.

Includes a large pallet of new parts/spares.
We also have 3 sets of Cutting heads (most have never been used).

The Machine will re-profile both wheels simultaneously to equal diameters, leaving a witness groove at the flange of the profile. Both wheels of a wheelset will be finished automatically to the diameter that is required to clean up while removing the minimum amount of metal possible.