Radial Drilling Machine - Esskay Machines
                     Radial Drilling 
Machine 
Radial Drilling Machine is a heavy machinery tool, primarily used for 
making round holes in mediums to large and heavy workpieces. these 
machines are used to drill holes in a given radial distance. It is mainly 
used when the component’s size is larges in height. A radial drilling 
machine is a cylindrical geared electric drill head that is mounted on an 
axial armature that can rotate up to its full extent to bore into any 
substance. Since heavy work cannot move much, the radial drilling 
machine is made in such a way that the machine tool can move any part 
of heavy work without doing much work. This technology is perfect for 
drilling, boring, reaming, tapping and counterboring very large and 
heavy parts of different metrologies.
Working Principle 
of
Radial Drilling Machine 
When power is supplied to the motor, the spindle rotates, 
causing the attached stepped pulley to also rotate. On the 
opposite end, a stepped pulley is attached, which can be 
inverted to increase or decrease the rotational speed. A V-belt is 
installed between the stepped pulleys for maximum power 
transmission. Now, the drill bit that was placed in the fixed 
workpiece is connected to the spindle. As it rotates through the 
rotation of pulleys, the drill bit rotates. The spindle is moved 
down to advance the drilling process with the help of a 
handwheel. After the hole is drilled, the handwheel is rotated to 
lift the spindle.
Components
of
Radial Drilling Machine 
1) Base
 
The base is usually made of cast iron. The reason behind this is that when you use 
the radial drill for machining, there will be a lot of vibration in it. cast iron has a 
remarkable ability to absorb the vibration produced by the machine parts. But that 
is not the main function of the base. The main function of the base is to provide 
support to the assembly mounted on it.
2) Column
 
The column is a vertical pillar that is mounted on the rear side of the base. Just like 
the base, it is also made from cast iron. The main function of the column is to 
support and hold the radial arm assembly. the radial arm that is mounted on the 
column is designed in such a way that it can slide easily up and down on the surface 
of the pillar.
3) Radial Arm
 
This is the part that is attached to the column. Radial arm is actually a mechanical 
tool which supports the drill head. This part can rotate 360  degrees around the 
column. It has so many unique movements that make the radial drill machine 
different from any other drill machine.
4) Drill Head
 
The drill head is mounted on the radial arm and drives the drill spindle.
 It engages all mechanisms to drive and feed the drill at different speeds.
5) Motor
 
The motor is present at the top of the drill head, which drives the horizontal axis. Its 
main job is to provide rotary drive to the spindle. The more drill capacity you want 
the more powerful motor you will need.
6) Spindle
 
The main function of the spindle is to support your tool and provide a rotary drive so 
that it can easily make a hole in your workpiece without breaking or falling.
7) Table
 
It is placed above the column. It provides you the facility to hold the workpiece 
during the drilling operation. Usually, the table comes in a round or rectangle shape.
CONTACT US
Lathe M achines, Milling Machines, 
Shaper Machine, Drill Machines 29/23, 
Byepass Dhir Road, Batala, Punjab
Mobile:  +91-98721-72154