Stepper Motor Linear Actuators Technology | Delta Line
 

Stepper motor Linear actuators technology

Stepper motor Linear actuators advantages:

Small to medium load ratings


Very high travelling speeds, thanks to over-square pitches (p ≤ 6 × d)


High efficiency (µ~0.5...0.8), thanks to high surface quality of the steel leadscrews


Weight optimization possible based on aluminium screws


High reliability and long service life with marginal need for maintenance

Linear actuators convert rotational motion in motors into linear or straight push/pull movements




Linear actuators are ideal for all types of applications where tilting, lifting, pulling or pushing with high force are required.

External Hybrid Stepper motor Actuators:
The lead screw turns with the rotor, moving a nut back and forth linearly. An external guide is necessary to prevent rotation of the nut. In the case of external linear actuators, the lead screw is permanently attached to the motor shaft and turns with the shaft when the motor is energized. If an external threaded nut – in standardized or anti-backlash version – is mounted on the lead screw and secured against rotating by an external guide, the threaded nut moves along the lead screw.

External hybrid stepper linear actuators

In the case of an External linear actuator, the lead screw is permanently attached to the motor shaft and turns with the shaft when the motor is energized.

Captive hybrid stepper linear actuators

In the case of a Captive linear actuator, the lead screw moves back and forth linearly with the linear guide serving as an anti-rotation device.

Non-Captive hybrid stepper linear actuators

In the case of a Non-Captive linear actuator, the rotor drives the lead screw back and forth linearly. An external guide is necessary to prevent rotation.
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