DC Permanent Magnet Motors

Permanent magnet DC (PMDC) motors are ideal for producing high torque at low speeds using a permanent magnet and DC current supply. Raptor Supplies offers a wide range of permanent magnet DC motors from brands, like Baldor, Marathon Motors, Dayton and Prestoline Motors.
Permanent magnet DC motorsmanufactured by Baldor Motors are suitable for operating washers & windshield wipers in vehicles and powering blowers in air conditioners & heaters. They have a heavy duty steel frame (56C, 145TC, 184TC, 184ATC or 1810ATC) with TEFC, a TENV or XPFC motor enclosure and a dynamically balanced armature for heat & moisture resistance. The commutators of these permanent DC motors are fused with the armature connections for generating a continuous duty magnetic field while providing low current flow resistance to reduce hysteresis loss. Baldor Motors PMDC motors are fitted with fine ceramic ferrite magnets to eliminate demagnetisation and double seal ball bearings to hold both axial & radial loads in clockwise (CW) & counterclockwise (CCW) directions. The endplates of these motors have die cast alloy construction with steel bearing inserts for easy re-greasing and increased thermal conductivity. They are also available in fractional power outputs and servomotor variants for precise control of speed & linear movement.
Dayton permanent magnet DC motorsare used to produce constant / variable torque for use in conveyor belts, hoists, mixers & positive displacement pumps. They have 143/5TC, 56C or non standard frame with different types of insulations that allow high operating temperature. These motors can run at a maximum speed of 1800 rpm in both CW & CCW directions. They are face / base mounted for quick & easy installation at any location. These motors are also used for powering tough-to-start applications like belt driven equipment, machine tools and reciprocating pumps.
Dayton 56C frame washdown DCmotors feature a totally enclosed housing for operating in wet or humid environments and withstanding frequent washing for sanitation. They are ideal for the chemical, food & beverage and pharmaceutical industries. This housing keeps out dirt & moisture and drains out any condensated particles through drain holes. These motors are further equipped with a totally enclosed fan-cooled enclosure & ball bearings for less motor heating & rotational friction.
Marathon Motors and Prestoline DC motors are used in air moving, hydraulic tail gate and snow plow lift applications as direct OEM replacements for other PMDC motors with similar specifications.

DC permanent magnet motors can handle heavy radial & axial loads by producing a constant torque throughout their speed range; best suited for application in conveyor belts, hoists, mixers, and positive displacement pumps. These motors are also suitable for driving HVAC equipment such as heat pumps, condenser fans and air conditioning & refrigeration condensing units. Raptor Supplies also offers washdown DC motors that can operate in wet / humid environments and withstand frequent washing.

After the DC permanent magnet motors are mounted at the desired location, they are fitted to the equipment that needs to be powered. The motors are further attached to controlling accessories like DC speed controls for monitoring motor outputs. Then the units are connected to a DC power source for supplying power to equipment.

• DC permanent magnet motors are used for powering HVAC equipment, automobile, conveyor belts, hoists & pumps by converting electrical energy to mechanical power.
• They use permanent magnets that do not require any field excitation arrangement & coil windings.
• These permanent magnets are attached with the armature connections for generating a continuous duty magnetic field and moving the motor shafts.
• The ball bearings on these devices further reduce frictional losses & eliminate heat generation inside the units.
• Selected motors can be used in outdoor applications or in wet operating conditions due to their totally enclosed motor enclosures & insulation.

A DC permanent magnet motor should meet or be certified to standards like ASME, ANSI, API or NACE before use in automobile, HVAC devices, boilers, pressure vessels or other mission critical applications.