3' x 8", JET RADIAL ARM DRILL, STK#320033, MODEL#J-720R **NEW**   Our stock number: 7948

3' x 8 , JET RADIAL ARM DRILL, STK#320033, MODEL#J-720R **NEW**

Model: J-720R
Stock Number: 320033
Motor: 3 HP, 230/460V 3Ph, Prewired 230V
Number of Spindle speeds: 6 (88 - 1500)
Spindle Taper: MT-4
Max Distance Spindle to Table ( in.): 26-3/4
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.): 2-3/8
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.): 8-21/32
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
Base Dimensions (in.): 49-5/8 x 25-3/16 x 6-1/4
Coolant Pump Motor: 1/8 HP
Table Dimensions (in.): 23-5/8 X 17-1/2 X 15
Overall Dimensions: 64 x 32 x 85
Height: 83 inch
Width: 64 inch
Length: 32 inch
Net Weight: 2697 pound

* The power train gears and spline shafts are made of the
finest quality, heat treated and ground nickel-chrome steel,
giving extra strength and smoothness to high torque loads
* The spindle is made of finest case hardened steel, for
extra strength and wear
* 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
* Arm raising safety device prevents arm from dropping
* Counter balanceed mechanism for spindle return
* 6 Speeds/3 Feed rates make exotic materials easier to
drill, bore and tap
* Centralized control center
* Automatic tool ejector
* Independent arm electric clamping system, which locks
and unlocks the head and column
* Push botton controls are all reduced to 110VAC
* 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 easilly accessible for
* Entire frame is made of Meehanite and high tensile
strength cast iron to handle the haviest of jobs

* Built in work light
* Coolant pump
* Tool kit
* Box table


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