Specifications - Jet J-1230R Operating Instructions And Parts Manual

4.0 Specifications

The JET Model J-1230R is a powerful and versatile radial arm drill press. The drill head is mounted on an
arm and can slide along the arm to position the spindle over the work piece. The arm itself can be rotated
on its support column to allow centering the spindle over the work piece.
Drilling can be performed manually or with power feed assistance. In addition, parameters of RPM, power
feed rate and drilling depth can be pre-set by the operator, using controls conveniently positioned on the
drill head.
The power train gears and spline shaft are made of high quality heat-treated and ground nickel chrome
steel, offering greater strength and smoothness to high-torque loads. The spindle is of case hardened
steel and supported by dual row taper roller and thrust ball bearings at the nose, with thrust and axial
bearings at the top. The frame is made of Meehanite® and high-tensile strength cast iron.
A precision machined box table allows convenient positioning and clamping of smaller work pieces. The
box table can be removed from the base to allow larger workpieces to be clamped on the base itself. Both
table and base have multiple T-slots for clamping set-ups.
Model number ........................................................................................................................ J-1230R
Stock numbers:
J-1230R .............................................................................................................................. 320036
J-1230R-4 ........................................................................................................................... 320037
Head and Spindle:
Push button controls ................................................................................................................. 110V
Spindle motor (model J-1230R) ................ TEFC, 5/3 HP (3.7/2.2kW), 3 PH, 230V only, 13/18 A, 60Hz
Spindle motor (model J-1230R-4) ........... TEFC, 5/3 HP (3.7/2.2kW), 3 PH, 460V only, 6.6/7.5 A, 60Hz
Spindle taper ................................................................................................................ Morse No. 4
Spindle speeds ...........................................................................twelve speeds, within 45-1550 RPM
Quill (spindle) travel............................................................................................... 9-7/8 in. (247mm)
Quill (spindle) travel with powerfeed engaged ............................................................ 9-7/16 (240mm)
Spindle travel along arm, total .................................................................................... 35 in. (875mm)
Feed rates (distance per revolution) ............................................................ 0.002, 0.004, 0.006 in/rev
Base surface to spindle, maximum (no tooling).......................................................... 54 in. (1350mm)
Base surface to spindle, minimum (no tooling) ...................................................... 19-3/8 in. (484mm)
Column to spindle center distance, maximum............................................................ 46 in. (1170mm)
Column to spindle center distance, minimum ........................................................ 13-3/8 in. (334mm)
Sound level (approx. 3-1/4 ft./1m from gearbox) * ........................ 82 dB at 1500 rpm; 79 dB at 88 RPM
Arm and Column:
Column diameter .............................................................................................. 11-13/16 in. (300mm)
Arm vertical travel on column ............................................................................... 34-5/8 in. (880mm)
Arm elevating motor ....................................... TEFC, 1 HP (0.75kW), 3 PH, 230/460V, 3.2/1.6A, 60Hz
Clamping motor.............................................. TEFC, 1 HP (0.75kW), 3 PH, 230/460V, 3.2/1.6A, 60Hz
Base and Table:
Box table dimensions (LxWxH)....................................... 25 x 20-1/2 x 16-1/2 in. (635 x 520 x 419mm)
T-slots in Table ................................................................................................ five at 3/4 in. (19mm)
Base dimensions (LxWxH) .........................................................68 x 28 x 7 in. (1710 x 715 x 180mm)
T-slots in Base ............................................................................................... three at 3/4 in. (19mm)
Additional specifications:
Coolant pump motor ...................................... TEFC, 1/8 HP (0.1kW), 3 PH, 220/440V, 0.2/0.1A, 60Hz
Machine height (floor to motor at maximum elevation) ........................................ 109-1/2 in. (2780mm)
Shipping Dimensions (LxWxH) ............................................... 80 x 39 x 88 in. (2035 x 995 x 2240mm)
Net weight ............................................................................................................. 4,630 lbs/2100kg
Shipping weight...................................................................................................... 5,070 lbs/2300kg
* Measured under test conditions SS41 material, 32mm thick, Ø32mm tool.
(J-1230R-4 is the same machine but wired for 460V operation)
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