What Is a Magnetic Drilling Machine?
A magnetic drilling machine is a power tool for drilling holes in steel frames and other steel materials.
A strong magnet is built into the bottom of the main unit. When the power is turned on, the main unit of the magnetic drilling machine is fixed to the steel material by magnetic force. Since the main unit is held in place by a magnet, it cannot be attached to materials other than steel.
There are two types of magnetic drilling machines: fully automatic and manual drilling machines. The fully automatic type can be switched to manual operation.
Since magnetic drilling machines are portable and work faster than general electric drills, they are used for drilling work at construction sites where large machines cannot be used.
How to Use Magnetic Drilling Machines
Move the main body of the magnetic drilling machine to the work area and position it at the material processing location.
Turn on the magnet switch, and the magnet is attracted to the designated position. Clean the magnet surface because rust or foreign matter adhering to the magnet surface will weaken the adsorption force.
Turn on the drill switch, move the feed handle slowly, place the tip of the drill against the material, and apply more force to drill the hole. When the drill penetrates through the material, the force applied to the feed handle is reduced because the resistance of the drill increases. Do not switch off the drill after the drilling is finished. Pull the drill back completely before turning off the switch to stop the motor.
For fully automatic magnetic drilling machines, the drill is automatically fed when the drill is switched on, and the drill automatically returns when the drilling is finished.
How to Choose Magnetic Drilling Machines
When selecting magnetic drilling machines, first consider the drilling capacity (drilling size and maximum board thickness).
Drills and steel cores are interchangeable and can drill holes of various sizes. However, you should check the minimum and maximum drilling sizes. The maximum plate thickness is the thickness of the steel material that can be drilled. It is best to select the maximum thickness of the steel material to be processed.
Other specifications of magnetic drilling machines include the maximum stroke, which is the maximum length that the drill and steel core can be lowered, the no-load speed of the motor, the maximum magnetic force, which represents the attraction of the magnet, the maximum conical thrust of the drill, and the amount of travel that the main unit can be moved after it is fixed by the magnet. These specifications are selected according to the conditions at the site where the drilling work is to be performed.
There are also various types of magnetic drilling machines, including fully automatic and manual types, and power-corded and cordless types. The type of magnetic drilling machines should also be selected to suit the work site.
The size and weight of the magnetic drilling machines should also be selected to match the job site conditions. The size and weight of the magnetic drilling machines may be linked to the drilling capacity, so both should be considered.