ism Group

I ran into the same problem when I built an automated hatch for a small off-grid cabin. The humidity and dirt would wreck anything that wasn’t sealed well. When I switched to a heavy-duty model like the ones on https://www.progressiveautomations.com/products/heavy-duty-linear-actuator industrial actuators, it handled snow and dust way better. I didn’t have to grease it constantly, and the internal seal design kept water out even after a rough winter. The only thing I still do is give it a quick wipe-down after big storms, but that’s more habit than necessity.