The storage and efficiency advantages of crossbeam shelves The access method of crossbeam shelves is centered on "equipment collaboration", mainly relying on mechanical tools such as forklifts and stackers. Forklifts can enter and exit directly from the front of the shelves without entering the interior of the shelves. The single access time is usually controlled within 1-2 minutes, much faster than light shelves that require manual handling. For high-level shelves (over 6 meters in height), they can be paired with high-level forklifts or stackers to achieve high-level access to goods through lifting devices. This access method supports two logics: "first in, first out" and "first in, last out". If goods need to be rotated in batches (such as food and medicine), they can be stored on one side and retrieved on the other side in the order of storage, achieving first in, first out; If there is no requirement for turnover sequence of goods (such as long-term stocking), they can be accessed from the same side for more convenient operation. In addition, the width of the shelf aisle can be adjusted according to the type of forklift, for example, a balance weight forklift requires a 4-meter aisle, while a forward moving forklift only requires a 2.5-meter aisle, which can further optimize access efficiency and adapt to different warehouse space conditions.