In a recent video with our esteemed colleagueLee Teschler, we got to look at six linear actuators from Schneider Electric Motion — in NEMA sizes 14, 17, and 23.
These linear actuators incorporate single-stack stepper motors to deliver long life and high accuracy and repeatability. The compact IP20 motors are 1.8° step-angle motors pre-integrated with leadscrews to satisfy an array of linear-motion applications.
With variations having an external shaft, the rotating screw is integral to the motor’s rotor and a mating nut travels axially along the threaded screw shaft. In contrast, versions with a non-captive leadscrew have the threaded shaft pierce through the motor to move axially with motor-rotor output.
No matter the version, the precision rolled leadscrews are quiet — especially when paired with a self-lubricating nut. Because the leadscrews are made of premium non-magnetic stainless steel, they’re corrosion resistant. Engineers can also specify the linear actuator’s screws with a Teflon coating. There are three options for leadscrew pitch and lead in the NEMA 14 and 17 sizes, and four options for the NEMA 23.
1.4 -。NEMA 14致动器接受12 - 48 Vdcto 1 A. Thrust is to 50 lb with a non-captive shaft; 25 lb with a general-purpose nut; and 5 lb with an anti-backlash nut. Repeatability with the latter is to five ten-thousandths of an inch.
The 1.7-in. NEMA 17 actuators accept 12 to 48 Vdc to 2 A. Thrust is to 50 lb with a non-captive shaft; 25 lb with a general-purpose nut; and 5 lb with an anti-backlash nut.
The 2.3-in. size NEMA 23 actuators accept 12 to 75 Vdc to 2 A. Thrust is to 200 lb with a non-captive shaft; 60 lb with a general-purpose nut; and 25 lb with an anti-backlash nut.
In some cases, the manufacturer also integrates these linear actuators with programmable motion controllers, drive electronics, and optional encoders to form MDrive Plus actuators. For more information, visitmotion.schneider-electric.com.
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Filed Under:Linear Motion Tips,Motors • stepper
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