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-A20″ x 16″ x 14″H box table w/side clamping and ground surfaces
RD-B26″ x 20″ x 16″H box table w/side clamping and ground surfaces
WB-C26″ x 18″ x 17″H box table w/side clamping and planed surfaces
WB-D30″ x 22″ x 17″H box table w/side clamping and planed surfaces
WB-65026″ x 18″ x 17″H tilting box table w/side clamping and planed surfaces
WB-75030″ x 22″ x 22″H tilting box table w/side clamping and planed surfaces