HD Radial Drills

HD Radial Drill Construction Features

7″ – 8.5″ arm, 20″ column, 3″ drilling capacity, hardened and ground steel alloy gears and shafts, spindle is mounted in 2 sets of roller and thrust bearings providing maximum stiffness, double wall column that can rotate 360 degrees, electro-mechanical clamping of the head and column and arm, multi-disc clutch for optimum spindle engaging and reversals, 18 powerfeed rates, powerfeed safety clutch, arm is raised and lowered by independent motor with safety nut, head moves horizontally on the arm on bearings that run on a hardened steel wear strip, coolant pump with reservoir in the base, box table, emergency stop, low volt controls.

HD Radial Specifications

Specification
UNIT
7′-20″
8′-20″
 Drilling (Steel / Cast Iron)
inch
3 / 3.75
 Boring (Steel / Cast Iron)
inch
8.7 / 11
 Tapping (Steel / Cast Iron)
inch
2.4 / 3.1
 Diameter of Column
inch
20
 Distance Spindle-Center to
Column-Face

Min.
inch
16
17

 Max.
inch
83
103
 Distance Column-Center to Arm End
inch
105
125
 Distance Base to Spindle Nose

Min.
inch
18
21

 Max.
inch
66
74
 Traverse of Arm on Column
inch
33
37
 Traverse of Spindle on Arm
inch
67
86
 Height (Floor to Column Cap)
inch
117
125
 Max. Height (Floor to Top of Head)
inch
136
145
 Base

Size
inch
121 / 49
141 / 49

Height
inch
10
11
 Net. Weight
lbs.
16,500
19,800
 Diameter of Spindle / Quill
inch
3 / 3.75 
 Vertical Traverse of Spindle
 inch
16
 Taper of Spindle
 MT
5
 Number of Spindle Speed
 step
16
 Range of Spindle Speed

50 Hz 
rpm

60 Hz 
rpm
20~2180
 Number of Feed Speed
step
18
 Range of Feed Speed
in/rev.
0.0015~0.125
 Spindle Drive Motor
HP
15
 Arm Elevating Motor
HP
5
 Clamping Motor
HP
2
 Coolant Pump
HP
1/8

Drilling Machines – Optional Box Tables

RD-A 20″ x 16″ x 14″H box table w/side clamping and ground surfaces
RD-B 26″ x 20″ x 16″H box table w/side clamping and ground surfaces
WB-C 26″ x 18″ x 17″H box table w/side clamping and planed surfaces
WB-D 30″ x 22″ x 17″H box table w/side clamping and planed surfaces
WB-650 26″ x 18″ x 17″H tilting box table w/side clamping and planed surfaces
WB-750 30″ x 22″ x 22″H tilting box table w/side clamping and planed surfaces