Storing six-meter square tubes without damaging their surfaces or wasting floor space is a persistent challenge in metal fabrication and distribution facilities. Loose stacking invites edge deformation, while conventional pallet racking consumes excessive aisle width. Herochu addresses this with a purpose-built cantilever system that holds long stock on open arms, eliminating front posts that obstruct forklift or crane access.
Why Cantilever Design Suits Square Tube Storage
Square tubes differ from round pipe in one critical respect: they have flat sides that resist rolling but are vulnerable to point-load deformation when stacked. Cantilever arms distribute the tube’s weight across multiple support points rather than concentrating it at corner contact areas. Herochu’s arm spacing is engineered so that a six-meter tube rests across at least three arms, preventing the mid-span sag that occurs when supports are too far apart.
The open-front design also means operators can place or retrieve a single tube without moving the entire bundle. A 6-meter square tube weighing 50 kilograms is awkward for manual handling; with Herochu’s dual-side mechanical assistance, the operator cranks the tier outward and the forklift accesses the tube directly, without turning within a narrow aisle.
Structural Specifications
Herochu’s heavy-duty tubing storage rack uses Q235B high-strength steel for the main frame. Each upright column is formed from structural channel, and the cantilever arms attach via a pin-lock system that resists dislodgement under load. The dual-beam crossbar design halves the moment at each connection point, extending the fatigue life of critical joints.
Load capacity per arm level ranges from 3,000 kg to 5,000 kg depending on model. The HC-G6053S carries 3,000 kg per level across five layers with 6,000 mm pipe length. For heavier square tube inventory, the HC-G9065 extends to 9,000 mm and raises per-level capacity to 5,000 kg.
Arm length adjusts from 550 mm to 800 mm in 100 mm increments, matching the operator’s bundle depth without overhang. Material extending beyond the arm tip creates a fall hazard and concentrates stress at the arm root; Herochu’s telescopic arms prevent this by extending to the exact bundle dimension.
Surface Protection and Durability
Square tubes often arrive with mill finish, paint, or galvanized coating that must reach the fabrication station undamaged. Herochu’s electrostatic powder-coated finish provides corrosion resistance on the rack itself, but the more important protection is the arm surface. Optional rubber or plastic sleeves fit over the cantilever arms, creating a non-marring contact surface that prevents scratches during loading and retrieval.
For facilities in humid or coastal environments, galvanized steel cantilever arms offer enhanced rust resistance beyond what powder coating alone provides. The zinc coating sacrifices itself to protect the underlying steel, a mechanism that continues working even if the surface is scratched by a forklift fork or falling tube end.
Compartmentalized Storage
Mixing tube sizes in a single bay creates retrieval errors and inventory confusion. Herochu’s independent compartment design places physical dividers between each storage cell, so a bundle of 40×40 mm tube cannot migrate into the space holding 100×100 mm stock. Each tier on each side of the rack functions as a discrete cell with its own base tray and side guides.
This matters more for square tube than round pipe. Square tube stacks flat and creates a level surface, but adjacent bundles of different heights can cause the shorter bundle to shift during forklift travel or crane operation. The compartment divider eliminates this movement entirely.
Installation and Customization
Herochu’s plug-in design allows installation without welding on site. Columns bolt to base plates, arms pin into column slots, and the entire structure can be disassembled and relocated if production layout changes. On-site installation supervision and online guidance are available for first-time installations.
Customizable elements include layer count (standard five, expandable to six or seven), load capacity per level (1,000 kg to 10,000 kg), storage length (3,000 mm to 12,000 mm and beyond), and color. All configurations undergo finite element analysis using Simsolid and Ansys to verify structural integrity under rated loads.
Operational Efficiency
The dual-side mechanical assistance system changes how long stock moves through a facility. Rather than reserving a wide aisle for forklift turning, the operator cranks the tier outward from the rack face. The forklift approaches straight on, lifts the tube, and reverses. Retrieval time drops because no repositioning is required.
For square tube specifically, the crank mechanism also reduces surface damage. The forklift fork never presses against the tube bundle during extraction; the operator picks from the extended tier, not from a fork wedged into a tight stack.
Summary
Herochu’s heavy-duty pipe storage rack for square tubes combines the structural capacity required for dense metal stock with the accessibility that keeps production flowing. Independent compartments prevent mix-ups, telescopic arms adapt to bundle dimensions, and the plug-in design allows the rack to grow or move as the operation evolves. For any facility storing six-meter square tube, the system eliminates the compromise between density and access.
