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DC motors are designed for use with unfiltered SCR (Thyristor) type and PWM (pulse width modulated) type DC adjustable speed drives, and on across-the-line DC controls. DC motors are perfect for conveyors, turntables, anywhere adjustable speed and constant torque are required, or when dynamic braking and/or reversing are needed.
IronHorse motors are manufactured
by leading motor suppliers delivering high-quality motors to the demanding U.S. market. Our
suppliers test the motors during production and after final
assembly. This is how we can stand behind our IronHorse motors with
a two-year warranty (motors 1/3 HP and above); or one-year warranty
(motors 1/4 HP and less).
IronHorse DC motors are designed for use on unfiltered SCR
(Thyristor) type and PWM (pulse width modulated) type DC adjustable
speed drives, and on across-the-line DC controls.
Where adjustable speed and constant torque are required
When dynamic braking and reversing capabilities are needed
For part listings and specifications, go to Shop Now
DC Armature Motors
(1/3hp and above)
56C / 90 VDC armature models in sizes from 1/3hp to 1-1/2hp
56C / 180 VDC armature models in sizes from 1/3hp to 2hp
Input power of 115 or 230 volts rectified AC can be used
with an appropriate SCR drive
Linear speed/torque characteristics over entire speed
High starting torque for heavy load applications
Capable of dynamic braking for faster stops
Available in TENV or TEFC housings, depending on model
NEMA 56C flange mount
Rolled steel shell frame / cast aluminum end bell
STABLE motor slide base available for adjustable mounting
Large replaceable brushes for longer brush life
Easy access to DC motor brushes (shipped with set of
Large easy-to-wire junction box with rubber gasket
Heavy duty oversized ball bearings
High tensile strength steel shaft
Two year warranty
Small Motors / 12-180 VDC
(1/4hp and under)
Sizes to 1/4hp
Available models accommodate: 12VDC, 24VDC, 90VDC
(can be used with 110VAC powered DC drives), and 180VDC
(can be used with 230VAC powered DC drives)
Rated for SCR drives
IP40 environmental rating
High energy ceramic magnets
Double shielded ball bearings
Dynamically balanced armature
18-inch leads, or junction boxes with 8-inch leads
Externally replaceable brushes
Can be mounted in any orientation
Not intended for DC power generation
DC Motor Accessories
All IronHorse permanent magnet DC motors are shipped with brushes installed. An extra set
of PMDC motor brushes is also included in the box. 56C DC motors (0.33HP and above) also
ship with an extra set of brushes. Replacement brushes are available.
Mounting slide bases for 56C permanent magnet DC electric motors allow adjustment of motor mounting position.
Brushes (2 per pack) start at
The voltage used to power a permanent magnet (PM) DC motor
is not pure DC. It is derived by rectifying a supplied AC voltage.
The resulting DC voltage has a ripple that is related to the
frequency of the AC input.
Form factor is the ratio of Irms to Idc and indicates how
close the driving voltage is to pure DC. The form factor for a DC
battery is 1.0. The higher the form factor is above 1.0, the more
it deviates from pure DC.
Form factor should not exceed 1.35 for continuous operation.
Half wave rectification is not recommended as it drastically
increases form factor.
Operating IronHorse PMDC motors with DC voltages with form
factors higher than 1.35 can result in premature brush failure and
excessive motor heating.