The Simmons Wheel Turning Center (WTC-60) is an affordable, compact vertical CNC lathe for the boring and machining of railway wheels. The machine incorporates an innovative traveling column design that integrates high rigidity and exceptional positioning accuracy. Simmons’ automatic extended travel table accommodates AAR-approved wheel sizes 28 through 38 inches without manual intervention. The machine is equipped with automatic pre- and post-machining measurement. The pre-machining probe cycle calculates the optimal amount of material to remove, while the post-machining probe cycle verifies the finished work piece dimensions and closes the loop on tool wear.
The WTC-60 is also available as an "mc" version that additionally provides live tooling for drill and tap and/or oil hole drilling, bringing those functionalities into one versatile machine.
The machine is equipped with the easy-to-use Siemens 840D CNC control and Simmons Human Machine Interface (HMI) that uses graphical user interfaces (GUIs) and railway wheel shop nomenclature eliminating the need for operators to learn typical machine tool programming language.
Machine Specifications
Machine Capacity
| Length | 158 in. | 4013 mm |
| Width | 80 in. | 2032 mm |
| Height | 130 in. | 3302 mm |
| Weight | 28000 lbs. | 12700 kg |
| Total Column Travel, Horizontal (X) | 36 in. | 915 mm |
| Column Travel Range, Horizontal (X) | -4 – 32 in. | -102 – 813 mm |
| Total Column Travel, Vertical (Z) | 30 in. | 762 mm |
| Table Range, Fully Automatic (Diameter) | 12 in. | 305 mm |
General Specifications
| Positioning Accuracy | +/- 0.0002 in. | +/- 0.00508 mm |
| Positioning Repeatability | +/- 0.0001 in. | +/- 0.00254 mm |
| Number of Turret Positions | 8 (actual number of usable positions (typically 4) dependent on application) | |
| Maximum Spindle Speed | 500 RPM | |
| Spindle Motor HP (Peak) | 50 HP | |
Utility Requirements
| Electrical Power | 96 kW |
Wheel Dimensions
| Maximum Wheel Weight | 2000 lbs. | 910 kg |
| Maximum Wheel Diameter (Standard Jaws) | 48 in. | 1219 mm |
| Minimum Wheel Diameter (Standard Jaws) | 28 in. | 711 mm |
| Maximum Bore | 11 in. | 280 mm |
| Minimum Bore | 4.5 in. | 114 mm |