Square tubes present a storage challenge distinct from round pipes. While round pipes roll—a hazard that requires specific preventive measures—square tubes remain stable on flat surfaces. However, square tubes are equally susceptible to bending and deformation when stored improperly, and their rectangular geometry introduces unique considerations for arm design and load distribution.

Herochu has engineered the Heavy Duty Pipe Storage Rack for Square Tube as a purpose-built solution for rectangular steel profiles. This system leverages the cantilever architecture’s inherent advantages while incorporating design features specifically optimized for square tube storage.

The Cantilever Advantage for Square Tube Storage

The open-front design of cantilever racking is particularly advantageous for square tube storage. Unlike round pipes, which can be rolled into position, square tubes must be lifted and placed precisely. The absence of front columns provides unobstructed access for overhead cranes or forklifts, enabling straight-line placement that minimizes handling time and reduces the risk of tube damage.

Square tubes are commonly stored in bundles, with multiple tubes stacked together. The flat surfaces of square tubes allow for stable bundling, but the weight of these bundles—often reaching 3 tons or more—demands robust structural support. The Herochu cantilever system provides the necessary support through multiple arms spaced along the length of the bundle.

Engineering for Square Tube Geometry

The rectangular cross-section of square tubes introduces specific engineering considerations for storage rack design.

Arm Surface Design: Unlike round pipes, which require V-shaped saddles or roll stops to prevent movement, square tubes can be stored on flat arm surfaces. However, the arm surface must be designed to prevent tube shifting during loading, unloading, or seismic events. Herochu arms for square tube storage typically incorporate anti-skid guard plates at the arm ends, providing a secure resting surface for rectangular profiles.

Load Distribution: Square tube bundles have a rectangular footprint that distributes weight evenly across the supporting arms. This even distribution is advantageous—it reduces the point-loading stresses that can occur with round pipes. However, the total weight of a square tube bundle can be substantial, and arm spacing must be calculated to prevent sagging or deflection.

Bundle Integrity: Square tubes in a bundle maintain their relative positions due to their flat surfaces. This stability is beneficial for storage—bundles remain organized without the rolling or shifting that affects round pipes. However, it also means that the entire bundle weight is concentrated on the supporting arms, requiring robust arm construction.

Structural Components for Heavy-Duty Square Tube Storage

Vertical Columns: The backbone of the square tube storage system. Herochu utilizes high-strength structural steel columns with full-walled, hot-rolled profiles that deliver exceptional rigidity. Columns are typically fabricated to heights of 4 to 8 meters, enabling multi-tier storage that maximizes vertical space utilization.

Cantilever Arms: Extended horizontal beams that support the square tube bundles. For 3-ton loads, arms are fabricated from high-strength H-beam steel or structural I-beams. The arms are bolted or pinned to the columns, with arm spacing adjustable to accommodate different bundle lengths and weights.

Base Frames: Ultra-wide, heavy steel feet bolted directly into the concrete warehouse foundation. The base provides the primary stabilizing anchor for the entire system, preventing tipping or shifting under load.

Bracing Systems: Horizontal and diagonal bracing members connect vertical columns together, providing essential lateral stability. This bracing prevents system sway and guards against progressive collapse under multi-ton loads.

Technical Specifications for Square Tube Storage

The Herochu Heavy Duty Pipe Storage Rack for Square Tube is available in configurations ranging from 2 to 8 tons per layer, with total rack capacities up to 40 tons. The HC-G6053E model, designed for a single-layer load capacity of 3 tons with a length of 6 meters, features 4+1 layers with bilateral assistance that ensures balanced load distribution.

Arm length and spacing are customizable based on the specific dimensions of the square tubes being stored. Standard arm lengths accommodate 6-meter tubes, with longer arms available for extended lengths. Interlayer spacing is adjustable to accommodate different tube cross-sections and bundle heights.

Operational Benefits for Square Tube Warehousing

Storage Density: By moving square tube bundles from floor stacks into vertical cantilever racks, warehouses can dramatically increase storage density. The multi-tier configuration of the Herochu system utilizes vertical space that would otherwise remain empty, recovering floor area for productive use.

Selective Access: The 100 percent selectivity offered by cantilever racking enables operators to access any specific bundle without moving surrounding inventory. This eliminates the wasteful handling required by floor stacking and supports just-in-time inventory management.

Material Protection: Square tubes stored on uneven floors are susceptible to bending or deformation. Elevated cantilever arms keep tubes straight and level, preventing the damage that occurs when tubes are stacked on uneven surfaces. Elevated storage also protects tubes from moisture and contamination.

Safety Systems and Accessories

For square tube storage, safety systems focus on preventing bundle shifting rather than roll-off prevention. Arm stops—vertical pins at the arm tips—provide a physical barrier that prevents bundles from sliding off the rack during loading or unloading.

Anti-skid surfaces on the arms provide additional security, preventing tube movement during seismic events or equipment vibration. For facilities storing particularly heavy square tube bundles, additional safety systems such as load indicators or weight sensors can be integrated into the racking system.

Material Handling Compatibility

The Herochu Heavy Duty Pipe Storage Rack for Square Tube is engineered for compatibility with the full range of material handling equipment used in steel warehouses. Side-loader forklifts, designed specifically for long loads, allow operators to carry 6-meter square tubes parallel to the aisle, drastically narrowing required aisle width. Multi-directional forklifts provide additional maneuverability in tight spaces. For facilities with overhead gantry cranes, Herochu offers configurations with open-top roof access, enabling vertical extraction without wide drive aisles.

The Heavy Duty Pipe Storage Rack for Square Tube from Herochu delivers the structural integrity, accessibility, and safety that modern steel warehouses require for efficient square tube storage. By combining engineering precision with practical operational considerations, it enables facilities to maximize storage density while maintaining rapid, safe access to their inventory.