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Brand New Jet 3’ Radial Arm Drill #J-720R
SPECIFICATIONS:
Drilling Capacity Mild Steel (In.):1-1/2
Drilling Capacity Cast Iron (In.):2
Tapping Capacity Mild Steel (In.):3/4
Tapping Capacity Cast Iron (In.):1
Boring Capacity Steel (In.):2-3/8
Boring Capacity Cast Iron (In.):4
Column Diameter (In.):8-1/4
Distance Spindle to Column (Min.) (In.):8-5/8
Distance Spindle to Column (Max.) (In.):29-1/2
Travel of Head Horizontal (In.):20-7/8
Distance Base to Spindle (Min.) (In.):9-5/8 - 41-3/4
Arm Travel Vertical (In.):23-13/16
Table Size (L x W) (In.):23-5/8 x 17-1/2 x 15
Base Dimensions (In.):49-5/8 x 25-3/16 x 6-1/4
Spindle Taper (In. x TPI):MT-4
Quill Travel w/ Powerfeed Engaged (In.): 8-1/4
Number of Spindle Speeds:6 (88-1500)
Quill Down Feed Rates (IPR):3 (.002, .004, .006)
Motor (HP):3 HP, 230/460V, 3Ph
Elevating Motor:1
Coolant Pump Motor:1/8
Machine Height from Floor (In.):85-7/16
Overall Dimensions (L x W x H) (In.):64 x 32 x 85
Weight (Lbs.):2,697
FEATURES:
•The power train gears and spline shafts are made of the finest quality, heat treated and groun
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 balanced 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 maintenance
•Entire frame is made of Meehanite and high tensile strength cast iron to handle the haviest of
jobs
•Build in work light
•Coolant pump
•Tool kit
•Box table