Induction Heater Model HIR-25/40 is specially designed
to dismount and mount the Inner Races of Cylindrical
Roller Bearings used on the Axles of Railway Rolling
Stock and in Traction Motors. The equipment can
also be used for similar applications by other industries.
Inventum Induction Heater Models HIR-25/40 are safe,
fast and energy saving alternatives to other methods
of heating inner races of cylindrical roller bearings.
When a job is heated with the induction coil it
acquired magnetism strong enough to attract iron
particles, iron dust etc. To deal with this phenomenon,
it is necessary to eliminate the residual magnetism
after heating. The design of Inventum Induction
Heater Models HIR-25/40 permits fast demagnetisation
by use of the heating coil itself. The Induction
Coil can be used for demagnetisation as well as
When Alternating Current (A.C) flows through a coil wound
around a component, it creates an oscillating magnetic
field which induces current in the component. The magnetic
field takes the path of least resistance and also due
to the skin effect, the outer periphery of the component
gets heated more rapidly than the core.
Based on the above principle, a ring shrunk fitted on
the shaft will get heated more rapidly causing a temperature
differential between the tow. The difference in the temperature
will cause the ring to expand to a stage it overcomes
interference and can be dismounted easily.
INDUCTION HEATER - SERIES
HIR Line frequency
Induction Heater for extraction and mounting of
Inner races of Cylindrical Roller Bearings and labyrinth
rings used on Railway Rolling Stock Axles &
Traction Motors etc.
Induction Heater Model 'HIR-25/40'
Voltage : 440V
Nominal Current : 60 Amps. (25 KVA)
Amps. (40 KVA)
Put Voltage & Current :
: 40 - 60 V.
Current : 500 amp.(max.) at 50V. (25 KVA),
amp.(max.) at 50V.(40KVA).
KVA / 40 KVA
Forced Air Cooling of the Mains transformer and
Forced Feed Cooling of the Induction Coil.