Operators in these trucks
can travel at either floor level or in a compartment, level with the forks,
giving them also the name “man-down” and “man-up” trucks respectively.
Most trucks have three
wheels - two on the front axle and one drive wheel at the rear. Some variations
of this truck have two wheels at the back to provide a larger load distribution
and traction. Rarely these trucks are found to have a rectangular arrangement
As these trucks operate in
VNA they use guidance systems to accurately and efficiently aid aisle movement.
These guidance systems can take the form of rails (floor mounted or top and
bottom mounted) or wires (which affect the thickness and reinforcement design
of the concrete slab).
The truck’s tyres are composed of polyurethane, which are not usually
aggressive to surfaces but can damage joint arrises.