Bridgeport Series 1 Vertical Knee Mill

Bridgeport Series 1 Vertical Mill, Chrome Ways 6″ Riser 60 low spindle speed, 3000 max. RPM spindle speed, 9″ x 42″ T-slotted table, 1.5 HP, 230/460V, 3 phase electric motor, includes assorted tooling, S/N 156243, new 1973 SERIES I Range Table Travel (X-Axis, end of table to end of saddle) without Power Feed 31in. (787mm) with Power Feed 30 in. (762mm) Saddle Travel (Y-Axis) 12in. (305mm) Quill Travel 5 in. (127mm) Knee Travel (Z-Axis)* 16 in. (406mm) Ram Travel 12 in. (305mm) Throat Distance (min.) 6.75 in. (171mm) Throat Distance (max.) 18.75 in. (476mm) Table to Spindle Nose Gage Line (min.) 2.5 in. (64mm) (max.) 18.25 in. (463mm) Table Overall Size 42 x 9in. (1067 x 299mm) Working Surface 42 x 9in. (1067 x 229mm) T-slots Centers 3 @ 2.5in. (64mm) T-slot Size 0.625in. (16mm) Height above Floor (max.) 47.25in. (1200mm) Weight of Workpiece (max.) 750lbs. (340kg.) Spindle (2J Head) AC Power Rating (30 min. duty cycle) 3 HP (2.2 kW) (continuous) 2 HP (1.5 kW) Spindle Taper R-8 Tooling R-8 Collets Speed Range High (infinitely variable) 500 – 4200 RPM @ 60 Hz Low 60 – 500 RPM @ 60 Hz Power Quill Feed (3) 0.0015 in./rev (0.038mm) 0.003 in./rev (0.076mm) 0.006 in./rev (0.152mm) Drilling Capacity Power Quill Feed 3/8 in. (9.5mm) Milling Capacity (mild steel) 2 CI/min. Boring Range (mild steel) 6 in. dia. (152mm) Spindle Diameter 1.875 in. (48mm) Quill Diameter 3.375 in. (86mm) Positioning Feedrate Range (X, Y) 0.50-35 ipm (13-889mm/min) Minimum Increment 0.0001in. (0.003mm) Space and Weight Floor Area 8.3 x 7.8 ft. (2.53 x 2.4m) Height 87 in. (2.21m) Net Weight 1930 lb. (875kg) Shipping Weight 2075 lb. (941kg) Power Input Power 208/230/460 volts 3 phase, 50/60 cycle Power Capacity 4kVA Excellent Condition