DE12-17W41-08FNHHN Electrak 050 Actuator 

Load Capacity (lbs.) is 50 on 12 volt and 112 on 24 volt
Load Limiting Clutch
Fixed Limit Switches, with Motor Overload Protection

Thomson Warner & USA manufacture.

Features:

Durable and corrosion free plastic housing
Small, quiet and lightweight
Very short retracted length
End of stroke limit switches with dynamic braking
Maintenance free
Internally restrained extension tube
Estimated life is minimum 40000 cycles

12 or 24 Volt for a variety of uses around the farm.
Air seeders – Control of seed and fertilizer.
Chute doors – Trucks, silos, sheep feeders and fertilizer spreaders.