Quickly load and unload trucks, trailers and rail cars from ground level when no freight dock exists. Increase productivity while reducing material handling costs. Great for construction sites. A manual two-speed hand crank for easy one person height adjustment offers a service range of 45" to 62". Available in 30 foot of straight ramp or 36 foot overall length; 30 foot of straight ramp and 6 foot level off. Standard features include: 9" steel wheels, positive traction open steel grating, safety locking chains, 4" high steel safety curbs, rubber bumpers, 15" overlap lip, fork positioning loop and welded steel construction. Painted neutral earth-tone brown.