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RLA Actuator Sizing Calculator

Size the right RLA Series actuator for your unwind or rewind web guide application. Enter your load parameters below to calculate the required thrust and see which actuator model fits your needs.

For the engineering theory behind these calculations, read our technical article: How to Size an Actuator for Unwind and Rewind Web Guides.

RLA Actuator Sizing Calculator

Calculate the thrust required for your unwind/rewind application

lb
Include core and material weight
lb
Carriage, mandrel, moving hardware
in/s
in/s²
Motor limit: 80 rps/s max · 40 rps/s typical
0.0040
2.0×
Recommended minimum: 2.0× for production machinery