Within a Proportioning Dosing Unit, the actuator (motor or solenoid) serves as the primary motion-generating component. It receives control signals and translates them into linear or rotary movement to precisely actuate valves, pumps, or plungers, thereby regulating the flow, volume, and timing of material dosing with high accuracy and repeatability. This actuator is a component-level product intended for integration into dosing systems by original equipment manufacturers or system integrators. It is not a standalone dosing unit but a part that must be selected based on the specific requirements of the application, including voltage, power, stroke, force, response time, accuracy, temperature range, pressure rating, ingress protection, and body material. The actuator is available in two main types: motor-based and solenoid-based. Motor actuators convert electrical energy into rotational torque, often using gears or lead screws to achieve linear motion, while solenoid actuators use a coil to generate a magnetic field that pulls a ferromagnetic plunger for linear stroke. Both types are controlled by electronic signals for precise positioning or on/off actuation. The actuator is designed for industrial environments and is available with a rated voltage of 24 V DC (±10%), power consumption between 5 and 15 W, stroke length from 10 to 50 mm, thrust force from 100 to 500 N, response time from 0.1 to 1.0 seconds, positioning accuracy of ±0.05 mm, operating temperature range of -40 to 85 °C, operating pressure of 1.0 to 1.6 MPa, ingress protection of IP54 to IP65 (per IEC 60529), body material of CF8M stainless steel (per ASTM A351), and weight from 2.5 to 8.0 kg. These values are reference ranges and must be confirmed for the specific model and application with the legal manufacturer or supplier. The actuator is not a safety device; its failure modes include loss of motion, erratic movement, or overheating, which should be monitored through feedback signals and regular maintenance. For selection, consider the required force, stroke, speed, duty cycle, and environmental conditions. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
A motor actuator uses electromagnetic principles to convert electrical energy into rotational torque, often coupled with gears or lead screws for linear motion. A solenoid actuator uses a coil to generate a magnetic field when energized, pulling a ferromagnetic plunger to create linear stroke motion. Both types are controlled by electronic signals to achieve precise positioning or on/off actuation for dosing control.
