CNC stepper motors are designed to be used on mid-sized and small CNC mills and milling machines, lathes, engravers, cutters, plasma cutters, vinyl sign cutters, foam cutters and many more. Stepper motors are used in other things besides CNC machines, like robots. These motors offer advanced torque curves as well as low inductance. These motors, because of advanced torque curves and the low inductance that they offer, are the best choice for higher speed rapids and close lead screw pitches.
CNC stepper motors come in basically two different forms: the unipolar motor and the bipolar motor. The bipolar series of motors uses the full coil, which in turn gives great torque at low speeds; however, the higher the inductance quality that is offered with the CNC stepper motors, the more quickly torque drops off. Other bipolar motors are offered, for example, the bipolar parallel motors which also use the full coil.
Unipolar and bipolar half coil stepper motors do not give great torque at low speeds because fewer turns are being used; however, because of the low inductance quality that is offered with the CNC stepper motors, the torque is held out at higher speeds.
As with any other CNC motor, the motor quality, reliability and compatibility will all depend upon the brand that is purchased. Different manufacturers offer different set ups, different options and different configurations between their CNC machines and the CNC stepper motors that are designed to work with each other. You will be better off if you purchase a CNC stepper motor that is of the same brand and that will work with the CNC machine that you currently have or that you are looking at buying.
Different wire configurations for set up qualities are offered depending upon the manufacturer and the type of CNC stepper motor that you are looking at. Some offer 6 leads, while others offer less. There are diagrams that are available from the manufacturers that can help to explain the leads and the wire configurations better.
Optimal performance standards for these motors are good compared to the size of the machines that these stepper motors are designed to work with. When used in correlation with the proper size of CNC machine and the proper type of CNC machine, these stepper motors may be all that you need to achieve the desired effects with machines of this size.
Pre-wired plugs are available for the steppers that help to reduce the installation time by quite a bit. You may also have to purchase a driver box to work in conjunction with the stepper motor. The installation process with the pre-wired plugs can be as simple as plugging the right wire to the right axis and that is it.
If you have any questions about a CNC stepper motor, its capabilities and what exactly it is designed to work in correlation with, you can ask your dealer/supplier. They will be able to answer questions and to guide you in the right direction when it comes to picking out the right one for you.
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