Jet GHD-20, Specifications

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104
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ON DRILLING
DRILLING
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DRILLING
105
5' ARM RADIAL DRILL PRESS
WIL
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ON DRILLING
STOCK NUMBER 1100R 1100R-4 1230R 1230R-4
Steel Drilling Capacity (in.) 1-3/4 1-3/4 1-7/8 1-7/8
Cast Iron Drilling Capacity (in.)
2-1/4 2-1/4 2-5/16 2-5/16
Steel Tapping Capacity (in.) 1 1 1 1
Cast Iron Tapping Capacity (in.) 1-1/4 1-1/4 1-1/2 1-1/2
Steel Boring Capacity (in.)
3-3/8 3-3/8 3-3/8 3-3/8
Cast Iron Boring Capacity (in.) 4-3/4 4-3/4 4-3/4 4-3/4
Column Diameter (in.) 10-1/4 10-1/4 11-13/16 11-13/16
Distance from Column to Spindle (max./in.)
43-5/16 43-5/16 46 46
Distance from Column to Spindle (min./in.) 9-5/8 9-5/8 13-3/4 13-3/4
Travel of head (Horizontal) (in.) 33-5/8 33-3/8 35 35
Distance Base to Spindle (max./in.)
50-3/8 50-3/8 54 54
Distance Base to Spindle (min./in.) 12-5/8 12-5/8 19-3/8 19-3/8
Travel of arm (Vertical/in.) 24 24 34-5/8 34-5/8
Table Dimensions (in.)
24-3/4 x 20-1/2 x 16-1/2 24-3/4 x 20-1/2 x 16-1/2 27-7/8 x 20-1/2 x 16-1/2 27-7/8 x 20-1/2 x 16-1/2
T-slot Number & Size (in.) 3 & 3/4 3 & 3/4 3 & 3/4 3 & 3/4
Base Dimensions (in.) 67-3/4 x 28 x 6-1/2 67-3/4 x 28 x 6-1/2 67-3/4 x 28 x 6-1/2 67-3/4 x 28 x 6-1/2
Spindle Taper
4 MT 4MT 4 MT 4 MT
Quill Travel (in.) 9 9 9-7/8 9-7/8
Spindle Travel w/Power Feed Engaged (in.) 4 4 4 4
Spindle Speeds (RPM)
12 (44–1500) 12 (44–1500) 12 (45–1550) 12 (45–1550)
Feed Rates (IPR) 3 (.002, .004, .006) 3 (.002, .004, .006) 3 (.002, .004, .006) 3 (.002, .004, .006)
Motor (2-Speed) (Low & High) 1-1/2 to 3HP, 230V, 3Ph 1-1/2 to 3HP, 460V, 3Ph 2-1/2 to 5HP, 230V, 3Ph 2-1/2 to 5HP, 460V, 3Ph
Elevating Motor
1HP 1HP 1HP 1HP
Coolant Pump Motor 1/8HP 1/8HP 1/8HP 1/8HP
Machine Height from Floor (in.) 100 100 109-1/2 109-1/2
Floor Space Required(in./L x W x H)
74 x 34 x 89 74 x 34 x 39 80 x 39 x 89 80 x 39 x 89
Shipping Weight (lbs.)
4290 4290 4620 4620
4' ARM RADIAL DRILL PRESSES
• 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 the 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
• The spindle is built to withstand exceptionally heavy drilling and boring
loads and to insure maximum accuracy
• Push button controls are all reduced to 110V
• Electrical circuits are located in the built-in control box at the rear of the
arm–this keeps the controls dust and humidity free while making them
easily accessible for maintenance
• Entire frame is made of Meehanite and high tensile strength cast iron to
handle the heaviest of jobs
• Arm raising safety device prevents arm from dropping
• Counter balanced mechanism for spindle return
• 12 speeds/3 feed rates make exotic materials easier to drill, bore and tap
• Centralized control center
• Automatic tool ejector
• Independent manual arm clamping system, which locks and unlocks the
head and column
STANDARD EQUIPMENT
• Built-in work light
• Coolant pump
• Tool kit
• Box table
4' ARM RADIAL DRILL PRESSES
1230R