MPC 0725 Linear Actuator with Dual Adjustable Limit Switches, 12 VDC, 4" Stroke,  225 lb. Maximum Heavy duty linear actuator with 4 inch travel Specifications: 12 volt DC [electrical], 770 lb max [static load]; 385 lb max [dynamic load], [Speed]: 7mm/sec @ 50% Load - 8mm/sec @ no load, Current: 1 [Amp Draw] @ no load Overall Length: 13" (Min) to 17"(Max); Length Between Mounting Holes: 11.5" (Min) to 15.5"(Max) Example Industrial or Commercial Applications: Solar Power, Farming equipment, road maintenance, construction work, military, yachts, ships, Oil platforms, trains, mining equipment, food industry.