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Stepper Motors, also known as step motors or stepping motors, are brushless DC motors that offer precise position and supreme holding torque.
Stepper motors move in discrete steps and come in a variety of sizes, styles and electrical characteristics. The rotor of a stepper motor rotates in steps, hence why they are called stepper motors. The parts of the rotor will be either repelled away from the magnet or drawn towards it, as the electro-magnets in the stator are switched off and on. An open loop controller can be used due to the use of stepping technology; this simplifies the machine design, making the cost of the system lower than that of a servo motor.
With stepper motors from Heason Technology, motion control becomes fast, precise and extremely cost effective. The two-phase motors we have can move at exactly 1.8° increments, which amount to 200 steps per revolution. Heason also have micro stepper drives, which break the 1.8° increments into even smaller steps.
Powermax II® M and P Series Stepper Motors
PMX Series Stepper Motor
Powerpac® K and N Series Stepper Motors
CT Series Stepper Motors
MX Hazardous Duty Series Stepper Motors
BSM R-Series Stepper Motor
Stepper motors are brushless motors and comprise of a rotor which has a series of permanent magnets arranged radially around the motor shaft. Around the inner surface of the motor housing are a series of wound coils. These coils form electromagnets and are organized in groups often referred to as phases.
But energizing these coils sequentially, the magnets in the rotor are forced to line up with the magnetic field induced by the coils. This causes the motor to rotate in steps. By varying the speed at which each coil phase is energized, the speed of the motor can be controlled. Similarly, the motor can be positioned by controlling the number, or steps, in the phase.
The motor will step around its rotation inset magnetic steps. One big advantage of stepper motors is that power can be taken off the motor coils and the motor will be held in position “magnetically”.
Stepper motors are used throughout many different industries for various applications. The main types of applications in which they are often selected for use are;
Positioning Applications – Stepper motors move in very precise steps; this makes them a very good choice for applications where highly accurate position measurement is required.
Low-Speed Torque – Stepper motors have maximum torque at low speeds making them well suited to applications which require low speed and very high precision.
Speed Control – Stepper motors can control speed very precisely due to the way that they work. This makes them well suited to applications where speed control is required.
Application examples of stepper motors include;
One of the main advantages of using a stepper motor for your applications is the cost – they tend to be lower cost than alternative devices. Other advantages include;
Our stepper motors are available to view above, they offer fast, precise and cost-effective motion control.
Our range of two-phase motors can move in 1.8° increments with 200 precise steps per revolution. For even higher accuracy we have a range of micro stepper motors which can measure even smaller increments.
For more information on our stepper motors please contact us.