Servo Actuator (Linear/Rotary)

Within a stacking mechanism, the servo actuator provides controlled, repeatable motion to position components such as pallets, boxes, or products during stacking operations. It ensures accurate placement, consistent force application, and synchronized movement with other system components to build stable stacks according to programmed patterns. The actuator is a component used in machinery and equipment manufacturing, available in linear or rotary configurations. It operates on a closed-loop principle: a controller sends low-power command signals (typically pulse or analog) to a servo drive, which powers an internal motor (AC, DC, or brushless) to generate torque. This torque is transmitted through a mechanical transmission—a ball screw for linear motion or a gearbox for rotary motion—to produce precise output movement. A feedback device (encoder or resolver) continuously monitors position and speed, sending data back to the controller to correct any deviation, ensuring high accuracy and repeatability. Key parameters include rated torque (0.5–50 N·m) for rotary units, rated thrust (100–5000 N) for linear units, stroke length (50–500 mm) for linear travel, rotation angle (0–360°) for rotary units, and position repeatability of ±0.01–±0.05 mm. The actuator operates on a 24 V DC ±10% supply and accepts analog control signals of 0–10 V or 4–20 mA. It is designed for an operating temperature range of -10 to +60 °C and offers ingress protection ratings from IP54 to IP65 per IEC 60529, suitable for dusty or wet environments. The housing is made of lightweight, corrosion-resistant aluminum alloy, with steel transmission components, copper windings, neodymium magnets, and polymer seals/bearings. Weight ranges from 1 to 10 kg depending on size and torque. Maximum linear speed is 100–500 mm/s, and maximum angular speed is 30–180 °/s. These values are directory reference ranges; verify model-specific specifications with the manufacturer or supplier before selection. The actuator is not a standalone product but a component integrated into larger systems, requiring proper sizing and configuration for the intended application.

The servo actuator receives low-power control signals (typically pulse or analog) from a servo drive or controller. An internal motor (AC, DC, or brushless) generates torque, which is transmitted through a mechanical transmission—such as a ball screw for linear motion or a gearbox for rotary motion—to produce precise output movement. A feedback device (encoder or resolver) continuously monitors position and speed, sending data back to the controller to form a closed-loop system for accurate motion control. This closed-loop feedback corrects errors in real time, ensuring high precision and repeatability.