The spindle is supported by double row taper roller and thrust ball bearings at the nose, with thrust and radial axis bearings at the top. Build to withstand exceptionally heavy drilling and boring loads to insure maximum accuracy. Electrical circuits are located in the build-in control box at the rear of the arm. This keeps the controls dust-and-humidity-free while making them easily accessible for maintenance.

• Part Number 320033
• Motor 3 HP, 230/460V 3Ph, Prewired 230V
• Number of Spindle speeds 6 (88 - 1500)
• Spindle Taper 4 MT
• T-Slots Number and Size (in.) 3 & 3/4
• Column Diameter (in.) 8-1/4
• Drilling Capacity Cast Iron (in.) 2
• Drilling Capacity Mild Steel (in.) 1-1/2
• Tapping Capacity Cast Iron (in.) 1
• Tapping Capacity Mild Steel (in.) 3/4
• Boring Capacity Steel (in.) 2-3/7
• Boring Capacity Cast Iron (in.) 4
• Distance Column to Spindle (max/in.) 29-1/2
• Distance Column to Spindle (min/in.) 8-5/8
• Travel of Head Horizontal (in.) 20-7/8
• Distance Base to Spindle (max/in.) 41-3/4
• Distance Base to Spindle (min/in.) 9-5/8
• Arm Travel Vertical (in.) 23-13/16
• Quill Travel (in.) 8-1/4
• Quill Travel w/ Powerfeed engaged (in.) 8-1/4
• Quill Down feed Rates (IPR) .002, .004, .006
• Elevating Motor 1 HP
• Table Size (in.) 23-5/8 X 17-1/2 X 15
• Coolant Pump Motor 1/8 HP
• Machine Hieght from Floor (in.) 85-7/16
• Table Dimensions (in.) 23-5/8 X 17-1/2 X 15
• Model Number J-720R
• Brand Jet
• Overall Dimensions 64 x 32 x 85
• Height 83 inch
• Width 64 inch
• Length 32 inch
• Net Weight 2697 pound