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Unit of Measure

Technical Specs

Brands

N/A Bridgeport Milling Machine

Table Size

N/A 49 x 9 in1245 x 299 mm

Table T-Slot Size

N/A 0.625 in16 mm

Ram Travel

N/A 12 in305 mm

Quill Travel

N/A 5 in127 mm

Spindle Taper

N/A R8

Voltage

N/A 208 V230 V460 V

Spindle Speeds

N/A 500 to 4200 rpm

Low Spindle Speeds

N/A 50 to 500 rpm

Working Surface

N/A 49 x 9 in1245 x 299 mm

Table Travel (X-Axis) with Power Feed

N/A 36 in914 mm

Saddle Travel (Y-Axis)

N/A 12 in305 mm

Knee Travel (Z-Axis)

N/A 16 in406 mm

Throat Distance Minimum

N/A 6.75 in171 mm

Throat Distance Maximum

N/A 18.75 in476 mm

Table To Spindle Nose Gage Line Minimum

N/A 2.5 in64 mm

Table To Spindle Nose Gage Line Maximum

N/A 18.25 in463 mm

Alternating Current (Ac) Power Rating For Spindle (2J Head) (30 Min. Duty Cycle)

N/A 3 hp2.2 kW

Alternating Current (Ac) Power Rating For Spindle (2J Head) (Continuous)

N/A 2 hp1.5 kW

Optional Spindle Taper

N/A #30 ISO Tool Holder Erickson Quick-Change #30 ISO

Power Quill Feed

N/A 0.0015 in/rev0.038 mm

Speed Range Manual Adjust

N/A 0.003 in/rev0.006 in/rev0.076 mm0.152 mm

Drilling Capacity Power Quill Feed

N/A 3/4 in19 mm

Drilling Capacity Milling Capacity (Mild Steel)

N/A 3/4 in19 mm

Drilling Capacity Boring Range (Mild Steel) Diameter

N/A 6 in152 mm

Drilling Capacity Spindle Diameter

N/A 1.875 in48 mm

Drilling Capacity Quill Diameter

N/A 3.375 in86 mm

Positioning Auto (X, Y) 100 Ipm

N/A 2540 mm/min

Positioning Manual (X, Y) 100 Ipm

N/A 2540 mm/min

Federate Range (X, Y) 0.1 to 35 Ipm

N/A 2 to 889 mm/min

Positioning Minimum Increment

N/A 0.0001 in0.003 mm

Space and Weight Floor Area

N/A 8.3 x 5.3 ft8.3 x 7.8 ft2.53 x 1.62 m2.53 x 2.4 m

Space and Weight Height

N/A 7.04 ft2.15 m

Shipping Weight

N/A 2075 lb941 kg

Power Capacity

N/A 4 KVA

Height Above Floor Maximum

N/A 47.25 in1200 mm

Features

Features

N/A For more than 60 years, the Bridgeport Series I Standard Mill - the original, all-purpose mill - has been the "real thing" in milling, drilling, and boring for metalworking shops throughout the world. Today, the Series I Standard continues to fulfill the industry's need for an accurate, reliable, and versatile mill.

The Series I Standard features an innovative airflow cooling design that uses no external fans to prolong bearing life and prevent expansion from heat build-up. A full range of accessories are available, including optional chrome-plated ways and gibs to ensure that the machine will last a lifetime.