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Bridgeport #Series-I, vertical knee mill, 2J head, 9" x42" table, 1.5 HP, Mitutoyo digital read out, 1975

Manufacturer Bridgeport
Year 1975
Table 9.00 - 42.00Table
HP 1.5 HP
Stock # 1251
Price $4,750

For Sale by Machinery Central

Gold Level Dealer
Surplus Record Dealer Since 2020


Bridgeport Series 1 Vertical Knee Mill w/ 1 1/2 HP 2J Head and Mitutoyo DRO
SKU: 1251
Bridgeport Series 1 Vertical Knee Mill
1 1/2 HP 2J Head
Mitutoyo DRO
s/n BR170284
new 1975
Collet Tray with R8 Collets
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)
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)
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)
Input Power 208/230/460 volts
3 phase, 50/60 cycle
Power Capacity 4kVA
Excellent Condition

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