Summit - 28-1/2" Swing, 120" Between Centers, 120 Volt, Triple Phase Toolroom Lathe - 6MT Taper, 15 hp, 20 to 1,250 RPM, 4-1/8" Bore Diam, 48" Deep x 70" High x 187" Long
Item #: 75222398
Brand: Summit
Model #: 28-4X120
Exact Tooling IR#: 04
Features and Benefits
Toolroom lathes are used for 5C collet work and precision finishing operations. They are capable of achieving spindle runout within 50 millionths on an inch or better.
Geared head lathes generally feature drive belt(s) from the motor to the headstock. Speed changes are made by shifting gear lever combinations in the headstock.
Three-phase refers to three individual lines (coils) that connect to and run voltage through the motor. Each line alternates in a sequence as they reach their voltage peak. They provide a more stable flow of voltage and more horsepower to the equipment.
| Product Specifications | |
|---|---|
| Machine Type | Toolroom Lathe |
| Spindle Speed Control | Geared Head |
| Phase | 3 |
| Voltage | 120 |
| Horsepower (HP) | 15 |
| Swing (Inch) | 28-1/2 |
| Distance Between Centers (Inch) | 120 |
| Spindle Bore Diameter (Inch) | 4-1/8 |
| Spindle Taper Size | 6MT |
| Swing Over Gap (Inch) | 36-1/2 |
| Swing Over Cross Slide (Inch) | 19-5/8 |
| Gap Length (Decimal Inch) | 15.0000 |
| Bed Width (Decimal Inch) | 15.7500 |
| Spindle Nose Designation | D1-8 |
| Number of Spindle Speeds | 21 |
| Minimum Spindle Speed (RPM) | 20.00 |
| Maximum Spindle Speed (RPM) | 1250.00 |
| Number of Inch Threads | 64 |
| Maximum Threads Per Inch | 60 |
| Minimum Metric Pitch (Decimal Inch) | 0.5000 |
| Maximum Metric Pitch (Decimal Inch) | 120.0000 |
| Number of Metric Threads | 64 |
| Min. Longitudinal Feed Per Rev. (Decimal Inch) | 0.0015 |
| Max. Longitudinal Feed Per Rev. (Decimal Inch) | 0.4447 |
| Min. Cross Feed Rate Per Revolution (Decimal Inch) | 0.000700 |
| Max. Cross Feed Rate Per Revolution (Decimal Inch) | 0.2224 |
| Minimum Threads Per Inch | 64 |
| Cross Slide Travel (Inch) | 15-1/4 |
| Tailstock Travel (Decimal Inch) | 9.5000 |
| Tailstock Taper Size | 5MT |
| Overall Length (Inch) | 187 |
| Overall Height (Inch) | 70 |
| Overall Depth (Inch) | 48 |
| Compound Travel (Inch) | 5-3/8 |
| Warranty | Mfr's One Year Warranty |
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