The ARM XL combines the heavy lifting capacity of vertical mast machines, with the versatility and flexibility that come with a telescopic design. The all-terrain lift truck is fully certified for rough terrain use and features full time 4WD, four wheel and crab steering modes, and comes standard with frame leveling. It is available in 12,000- to 30,000-lb capacities and is ideal for residential, commercial, and infrastructure construction projects. Omega Lift.