Double-Depth Racking-Haote logistics equipment

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Double-Depth Racking

Double-depth racking is an upgraded version of beam racking and is a double-row, deep storage system designed specifically for high-density warehousing. It uses a four-row, side-by-side racking design to reduce aisle space and convert aisle space into storage space. It can also be equipped with specialized forklifts that can reach deep into the second row of pallets to access them, balancing storage density and operational efficiency.

Product Details

1. Unlike traditional double-row beam racks, double-depth racks have four racks placed side-by-side, reducing aisle space;

2. Utilizes a first-in, last-out (LIFO) storage method, requiring the removal of pallets from the front row before accessing goods in the back row;

3. Each storage location corresponds to a unique SKU, enabling more precise warehouse location management;

4. Warehouse utilization rate is approximately 42%, with a selection rate of 50%;

5. Aisles are designed for forklift operation, with a structure identical to adjustable racks;

Product Advantages

Reduced storage costs: Fewer aisle spaces free up storage area, lowering unit storage costs;

Low maintenance costs: Fewer shelving components simplify daily maintenance. Maintenance costs are lower than automated warehousing equipment;

More focused inventory management: The same SKU is stored in two rows of storage locations, reducing the movement path for warehouse personnel during sorting and inventory counting, improving inventory management efficiency.

Components Of Double-Depth Racking

Uprights

The vertical support components of the shelving. Multiple uprights are spaced apart along the length of the upright section to form an upright section. These upright sections are then spaced apart to provide basic vertical support and stability for the shelving.

Beams

Connect adjacent upright sections and are used to place goods. They are horizontal components that bear the weight of the goods.

Horizontal Braces

Horizontally installed within the upright sections, connecting the uprights and enhancing the lateral stability of the upright sections, improving the overall resistance to deformation of the shelving.

Diagonal Braces

Generally installed diagonally between the uprights, working together with the horizontal braces to further enhance the stability and structural strength of the upright sections, improving the shelving's resistance to tipping over.

Application Of Double-Depth Racks

Due to its simple structure, strong versatility, easy assembly, and low implementation cost, warehouse pallet shelves are the most commonly used storage system. They are particularly suitable for the following situations:

Retail distribution centers

Their centralized stocking and bulk outbound models align well with the low-turnover, high-density nature of double-depth racking, reducing operating costs.

Cold chain warehouses

Cold chain warehouses have high construction and operating costs; double-depth racking can increase storage capacity per unit area, reducing costs.

Cross-border e-commerce

Their high rental costs, long-term storage, and bulk shipping requirements are well-suited to the high space utilization and low-turnover characteristics of double-depth racking.

FAQs

What are the key maintenance points for double-depth racks? How do they differ from beam racks?

The maintenance focus is basically the same as for beam racks, including: ① Regularly checking the connection clips between the beams and uprights to ensure they are secure; ② Checking the protective covers on the rack uprights in the forklift operating area to prevent deformation from collisions; ③ Cleaning dust from the rack surface to prevent rust. The difference is that the forklift telescopic fork's running track needs to be additionally checked to ensure it is free of obstructions and to avoid affecting the access to inner pallets.

What are the maximum height and single-layer load-bearing capacity of a double-depth rack?

The standard maximum height can reach 8-10m, which is suitable for warehouses with a net floor height of ≥9-11m; the single-layer load-bearing capacity is similar to that of beam racks, which is 1000-3000kg/layer. Thickened beams and columns can be customized according to the weight of goods, and the maximum single-layer load-bearing capacity can reach 4000kg, which is suitable for storing heavy palletized goods.

What principles govern the storage and retrieval of double-depth racking? Can it achieve first-in, first-out (FIFO)?

The default principle is "last in first out" (LIFO), meaning that inner pallets can only be accessed after outer pallets have been removed. To achieve LIFO, a "double-row facing layout" is required, where two rows of shelves are placed back-to-back with an aisle in between. Goods stored on one shelf are retrieved from the other shelf, and sequential access is achieved by moving the goods horizontally. However, this will occupy a small amount of aisle space.

Do double-depth racking systems require a scissor-type reach truck? Can a regular reach truck work?

A scissor lift forklift (also known as a double-deep forklift) must be used; ordinary reach forklifts are not compatible. This is because the inner pallets of double-deep racks require the forklift to extend its forks forward to the second depth position for storage and retrieval. The forks of a scissor lift can achieve two-stage extension and retraction, while the forks of an ordinary reach forklift have a limited extension and retraction distance and cannot reach the inner pallets.

How much more storage capacity can double-depth racks increase compared to beam racks?

Double-depth racking allows each storage location to hold two pallets arranged one in front of the other, reducing one aisle compared to beam racking, thus increasing space utilization by 30%-40% and storage capacity per unit area by 25%-35%. For example, in a warehouse of the same area, beam racking can store 1000 pallets, while double-depth racking can store 1250-1350 pallets.

Case Studies

Vorwerk

A leading automotive chassis and suspension system expert under the German Fowler Group, founded in 1827, with a factory in Suzhou serving major global automakers. Specializing in the R&D and production of precision suspension components, its clients include Audi, BMW, BYD, and other manufacturers of both gasoline and new energy vehicles.

Shock absorbers, springs, stabilizer bars, suspension connectors, NVH vibration absorbers, body transition components, ventilation/fluid delivery pipes, gear components, and also supplying rubber and plastic molded parts for the home appliance and electronics industries.