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    Nema 23 Stepper Motor Linear Actuator, 2 phase, 2A, 1Nm

    This 2 phase Nema 23 frame size hybrid stepper motor linear actuator in a very small package, rated current of 2A and holding torque of 1 Nm, precision leadscrew and special nut design, make it more efficient and more durable.
    SKU: ATO57H255-2004
    Delivery date: 6-12 days

    The high performance Nema 23 stepper linear actuator has external linear and non-captive style for you to select. It not only reduce cost but also reduce failure rate due to the less number of components and more simple construction.
    Stepper Motor Linear Actuator 

    Model Type External Shaft Non-Captive Shaft
    57H255-2004AST 57H255-2004GTS
    Weight 0.7 Kg
    Motor Length 55 mm
    Phase 2 phase
    Step Angle 1.8°
    Rated Current 2 A
    Resistance 1.6 Ω
    Holding Torque 1 Nm
    Rotor Inertia 200 g-cm2

    Select Leadscrew
    Choose your stepper motor linear actuator screw from one of the available options:

    Screw Diameter Lead Travel Per 1.8 Step
    (in) (mm) (in/rev) (mm/rev) (in/step) (mm/step)
    0.315 8 0.079 2 0.00039 0.01
    0.315 8 0.157 4 0.00079 0.02
    0.315 8 0.315 8 0.00157 0.04
    0.315 8 0.787 20 0.00394 0.1
    0.394 10 0.079 2 0.00039 0.01
    0.394 10 0.157 4 0.00079 0.02
    0.394 10 0.394 10 0.00197 0.05
    0.394 10 0.787 20 0.00394 0.1
    0.394 10 0.984 25 0.00492 0.125

    Stepper Motor Linear Actuator Dimension
    1. Non-captive shaft style
    nema 23 non captive shaft stepper motor linear actuator dimension
    2. External shaft style
    nema 23 external shaft stepper motor inear actuator dimensionTips: How to select the protection form for stepper motor linear actuator
    It is necessary to select the appropriate protection form for stepper motor linear actuator according to different environment, in order to prevent the damage to the stepper motor linear actuator caused by the surrounding environment and substances or the disaster caused by the stepper motor failure. The protection forms of the stepper motor are open type, protective type, explosion proof type and closed type. We should follow the following principles in selection.

    1. The open type stepper motor can only be used in dry and clean environment.
    2. The protective stepper motor linear actuator is suitable for dry environment with no dust, explosive and corrosive gas. This kind of stepper motor linear actuator can be selected in such circumstance because they are well-ventilated.
    3. The explosion proof type stepper motor linear actuator can be applied in the environment of explosion danger (such as in the pit of gassy mine).
    4. The closed type stepper motor linear actuator can be divided into self-cooled type, non self-cooled type and sealed type. The former two type can be used in wet environment with corrosive dust and weathering. The latter is applied in the equipment dipped in water (such as submerged pump).
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