https://www.pololu.com/product/2307
Pololu - Glideforce LACT6P-12V-20 Light-Duty Linear Actuator with Feedback: 50kgf, 6" Stroke (5.9"...
This 12 V light-duty (LD) linear actuator with a 20:1 gear reduction can lift loads up to 50 kgf [110 lbs or 500 N] and can withstand static loads up to 250...