Drive-in Racking (also called corridor-type or drive-through racking) adopts the pallet access mode and is suitable for the storage of goods with small variety and large quantities. Since the forklift needs to drive into the interior of the rack to access the goods, it is generally recommended that the single-sided picking depth should not exceed 5 pallet positions. Drive-in rack storage capacity in the same space is almost double the capacity of conventional selective pallet racks, because the access aisles between rows of shelves are eliminated and the lanes are merged so that the pallets in the same lane and same level are stored consecutively. This maximizes storage capacity utilization. Drive-in racks are widely used in the storage of large-batch, few-variety goods. These types of goods are usually packaged in a uniform manner and have a single product type, such as food, tobacco, cold storage, and other warehouses.

Column piece: Two columns are connected by cross struts and diagonal braces using nylon self-locking bolts, which can effectively prevent the rack from destabilizing. There are double rows of diamond-shaped holes punched on the columns, and the hole spacing is 75mm, so the load rails can be attached. The rail height can be adjusted up and down in 75mm increments on the column.

Load rails (top and back beams): Welded from two column connectors and rectangular tubes, this structure has the characteristics of being simple and reliable, lightweight, bearing pull, strong pressure, and low cost. When the column connector is attached to the column, it is equipped with a specially designed safety pin to ensure that the rail does not fall off after impact from external forces. (Note: In standard Drive-in racks, there are no solid back beams – these are load-supporting guide rails that run the depth of the lane).

Upright guards (bull legs): These are overall stamping-formed components, with welded guard options available. They have a large moment of inertia, strong load-bearing capacity, and a clean appearance. When connected to the column with a specially designed safety pin, they can ensure that the rail structure is protected from forklift impact.

Pallet support rails (shelf): These are cold-rolled parts. Any length can be made as needed without joints. The structure is uniform and load distribution is even. (Note: In Drive-in racks, this refers to the load-bearing rails that support the pallet edges, not a solid shelf decking.)

The design of Drive-in racks pays special attention to the following dimensions:

A. Rack length (dimension from column center to center)
B. Inner clearance of column or upright guards (note: forklift width must fit)
C. Rack width (overall column dimensions)
D. Pallet length and fork length determine the required rail depth
E. Inner clearance between load rails (note: upper part of the forklift must pass through)
F. Pallet load dimensions (note: load-bearing and safety)
G. Column spacing (usually equal to pallet width)
H. Rack height (note: pallet height, cargo height, lifting space, etc.)