Big torque from smooth little stepper
An
EMS product story
Edited by the Engineeringtalk editorial team
Feb 17, 2004
The latest two-phase stepper motor from Arsape features a diameter of 22mm and a very high power-to-volume ratio.
The latest two-phase stepper motor from Arsape features a diameter of 22mm and a very high power-to-volume ratio.
The AM 2224 achieves an output of 2.5W and a peak holding torque of 45mNm - a superior performance for this frame size (at just 25.9mm long).
There are 3, 6, 12 and 24V versions available as well as 0.25 and 0.50A options.
The motor processes the transmitted control signals with extreme accuracy.
This allows an angular step of 18 degrees (even smaller in micro-stepping).
In an open control loop this makes it possible to run rotary speed profiles or build up a positioning control.
The use of expensive servo components can usually be avoided.
After switching off, the motor maintains its present position exactly.
Like brushless motors, stepper motors do not have any mechanical commutation, so service life is only limited by the bearings.
In order to also exploit the advantages of this motor technology where more torque is required, the AM 2224 is available with matching speed reducers.
For example, the Series 23/1 planetary gearhead increases continuous torque to 0.7Nm, and even to 1Nm in intermittent operation.
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