An ITA Class III pedestrian-operated electric lift truck with a mast that raises pallets for stacking and low to medium rack levels; rated capacity varies by model and lift height.
Detailed Definition
A walkie stacker is a walk-behind electric truck with a mast, so it can raise pallets well above the floor instead of just clearing it for travel. Common types include straddle stackers, whose base legs run outside the pallet; counterbalanced stackers, which have no front legs and can handle closed-bottom pallets; and reach-style stackers. They are used where a rider forklift is not justified, such as small warehouses, store back rooms and production areas.
Legs, straddles and pallet fit
On a straddle stacker the base legs run outside the pallet, so the space between them must be wider than the pallet or load. In rack, the bottom beam level and any floor-level pallets must leave room for the legs. Some stackers have legs that go under the pallet like a pallet jack, which only works with pallets that have open bottom decks from that side. Counterbalanced walkie stackers avoid legs but are longer and heavier for the same capacity.
Capacity at height
Rated capacity is given at a stated load center and lift height. On many models the allowable weight drops as the forks go higher, and the capacity plate on the truck shows the limits. Check that the heaviest pallet you store can be placed at the highest beam level you plan to use, not just lifted at floor level.
When a walkie stacker fits
A walkie stacker suits low to moderate volumes, short travel and limited lift heights. For high throughput, long travel or tall rack, a rider reach truck or forklift is usually more productive. Operator training under OSHA 29 CFR 1910.178 applies.
Related Glossary Terms
Frequently Asked Questions
Can a walkie stacker lift a standard 48x40 pallet?
Many can, but check the fit. A straddle stacker needs its legs set wider than the pallet, and the fork length and spacing must suit it. A stacker with legs that go under the pallet needs open bottom deck spaces, which many stringer pallets have at the ends. Counterbalanced models can handle closed-bottom pallets. Confirm capacity and dimensions on the truck's specification sheet.
Is a walkie stacker suitable for loading trailers?
Some models are rated for dock and trailer work, but many walk-behind stackers have small wheels and low ground clearance that struggle with dock plates and gaps at the trailer edge. Check the manufacturer's rating for ramps and dock boards before using one this way. Walkie pallet jacks and rider trucks are more common choices for loading trailers.