Choosing a Stepper Motor and the controller
The choice of a stepper motor depends on the application's torque and speed requirements. Use the motor's torque-speed curve (found in each drive's specifications) to select a motor that will do the job. Every stepper motor controller in the Omegamation line shows the torque-speed curves for that drive's recommended motors. If your torque and speed requirements can be met by multiple stepper motors, choose a controller based upon the needs of your motion system- step/direction, stand-alone programmable, analog inputs, microstepping- then choose one of the recommended motors for that controller. The recommended motor list is based on extensive testing by the manufacturer to ensure optimal performance of the stepper motor and controller combination. Two phase Stepper Motor Robust assembly, high speed range, and exceptional performance in even the harshest environments make PRECIstep drive systems the perfect solution for demanding positioning applications. They are available with a wide variety of modular servo components like encoders, zero backlash gearheads, integrated lead screws and much more. The rotor consists of an injection moulded plastic support and magnets which are assembled in a 10 or 12 pole configuration depending on the motor type. The large magnet volume helps to achieve a very high torque density. The use of high power rare-earth magnets also enhances the available temperature range of the motors from extremely low temperatures up to 180 °C as a special confi guration. The stator consists of two discrete phase coils which are positioned on either side of the rotor. The inner and outer stator assemblies provide the necessary radial magnetic field. |
What are stepper motors good for?
Positioning – Since steppers move in precise repeatable steps, they excel in applications requiring precise positioning such as 3D printers, CNC, Camera platforms and X,Y Plotters. Some disk drives also use stepper motors to position the read/write head. Speed Control – Precise increments of movement also allow for excellent control of rotational speed for process automation and robotics. Low Speed Torque - Normal DC motors don't have very much torque at low speeds. A Stepper motor has maximum torque at low speeds, so they are a good choice for applications requiring low speed with high precision. Top Ten Stepper motor Advantages: Stable. Can drive a wide range of frictional and inertial loads. Needs no feedback. The motor is also the position transducer. Inexpensive relative to other motion control systems. Standardized frame size and performance. Plug and play. Easy to setup and use. Safe. If anything breaks, the motor stops. Long life. Bearings are the only wear-out mechanism. Excellent low speed torque. Can drive many loads without gearing. Excellent repeatability. Returns to the same location accurately. Overload safe. Motor cannot be damaged by mechanical overload. Top Ten Stepper Disadvantages: Low efficiency. Motor draws substantial power regardless of load. Torque drops rapidly with speed (torque is the inverse of speed). Low accuracy. 1:200 at full load, 1:2000 at light loads. Prone to resonances. Requires microstepping to move smoothly. No feedback to indicate missed steps. Low torque to inertia ratio. Cannot accelerate loads very rapidly. Motor gets very hot in high performance configurations. Motor will not "pick up" after momentary overload. Motor is audibly very noisy at moderate to high speeds. Low output power for size and weight. |
As a customer orientated company, We have been offering high-quality, affordable stepper motor and stepper driver and exceptional customer services, which has been widely acclaimed by customers from over 50 countries. Oyostepper is committed to provide a platform for more and more small and medium enterprises, hobbyists and DIYers getting what they are not able to get from factories directly, customized motors and knockdown prices for example. Hot Categories: Nema 23 - 57 x 57mm Nema 17 - 42 x 42mm
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