VNA and NA Trucks: There are some truck models which have very narrow aisle or VNA features or narrow aisle or NA features. The majority of counterbalanced trucks need a minimum of 11 feet of aisle width in order to operate efficiently and safely. Narrow Aisle trucks however, are able to operate in narrow aisles which measure 8 to 10 feet wide. In addition, very narrow aisle or VNA trucks could operate in aisles as narrow as 6 feet wide.
The advantage of using an NA and VNA truck over a traditional lift is that it makes it possible for warehouses to be constructed with narrower aisles. The wider aisles in the warehouses enable for more storage of things in a particular space, which improves cube utilization. The loads moved using Very Narrow Aisle and NA trucks usually are limited to approximately 3000 and 5000 pounds. Reach trucks can operate in narrow aisle. Turret trucks, rotating mast trucks and order selectors can work in narrow or very narrow aisles, depending on the particular unit.
Reach Trucks: Specially made for storage and retrieval, reach trucks are made with telescoping forks and outriggers that allows the operator to lift and retract a load over the outriggers. These models are not the best suited for moving loads quickly over long distances nor for unloading or loading trucks. Like the order selector, reach trucks could be available for lifting heights which are greater than 30 feet.
Rotating-Mast Trucks and Turret Trucks: Similar to standard sit-down forklifts, rotating mast trucks have masts that can rotate in one direction, to a 90 degree angle. This particular feature allows them to function in a narrow aisle condition. Turret trucks are able to operate in narrow or very narrow aisle locations. Like order selectors, these machines are capable of lifting both the cargo and the operator. Moreover, they can allow the operator to handle loads on either side of an aisle without exiting and re-entering the aisle.
Turret trucks are normally wire or rail guided when they are used in very narrow aisles. Thus, the operator doesn't have to focus any energy on their driving skills and could focus on the work load at hand. As turret trucks are considered "operator-up" trucks, they are able to be utilized for case and item picking in addition to full pallet handling.