Electric Motorized Mobile Cantilever Rack for Long Steel Profiles & Pipe Storage

Most steel service centers and fabrication shops do not run out of vertical space first. They run out of aisle. A conventional cantilever layout assigns a permanent picking aisle to every run, and in a facility with a 6-meter ceiling, those aisles consume floor area that could otherwise hold sellable stock. The electric motorized mobile cantilever rack changes that arithmetic by putting the racking on floor-mounted rails and letting the towers move, not the forklift.

Herochu builds its HC-G series around this principle: multiple cantilever towers share a single ground rail, and only one aisle opens at a time—the one serving the tower that needs to be accessed. For long steel profiles, pipe bundles, and structural sections, the result is a measurable recovery of floor space without adding a single square meter to the building.

Why a Shared Aisle Changes the Storage Equation

A fixed cantilever system is efficient at holding long loads, but it is inefficient at holding floor space. Every bay needs a dedicated aisle wide enough for a forklift or side-loader to approach the arms. In a warehouse storing 6-meter or 9-meter material, that aisle width is not optional—it is the difference between a workable layout and a blocked one.

Mobile cantilever racking collapses the aisle count. The towers sit close together on floor-mounted rails, and the motorized drive opens only the gap required for the current pick. Industry data on mobile cantilever configurations show space savings of roughly 40% compared with conventional static cantilever systems, with some layouts increasing storage capacity by up to 80% within the same footprint. The mechanism is straightforward: the aisle becomes a shared resource rather than a permanent fixture.

Herochu’s HC-G6053EM-5, HC-G9055EM-7, and HC-G12065EM-7 models are dimensioned for 6,000 mm, 9,000 mm, and 12,000 mm pipe lengths respectively, with 5 to 6 customized layers and 3,000 kg to 5,000 kg maximum load per level. The shared-aisle architecture means a facility handling mixed lengths can keep multiple tower groups on the same rail line and still reach any level without threading a forklift through a fixed aisle maze.

Built for the Low-Ceiling Reality

Not every steel warehouse is a high-bay distribution center. Many fabrication shops, job shops, and urban depots operate under 5 to 7 meters of clear height, where vertical expansion is either impossible or uneconomical. Static cantilever racks in these buildings often force a trade-off: fewer layers means less capacity per tower, and more towers means more aisles.

The mobile cantilever format sidesteps that trade-off because it does not depend on height to gain density. The density comes from consolidating aisle space horizontally. Herochu’s rail-type telescopic cantilever shelves are specifically positioned for low-height, space-constrained warehouses, where the ground rail design provides a stable structure, good load-bearing capacity, and a wide field of view for operators. The traveling speed of 1–5 m/min and carriage speed of 27 mm/s are deliberately conservative—fast enough to reposition a tower group in under a minute, slow enough to keep a loaded 5-ton level stable during travel.

For a warehouse with a low ceiling, the practical benefit is that the top level stays usable. There is no need to reserve the upper tier for slow-moving stock simply because the aisle structure cannot support efficient retrieval. Every level on the tower is served by the same shared aisle, and the electric drive brings the correct tower into position.

The Operational Difference: One Aisle, One Operator, One Control

A mobile cantilever system is only as good as its control layer. If repositioning a tower requires two people, a spotter, and a manual crank, the space savings are offset by labor friction. Herochu’s HC-G electric series uses a dedicated motor per level and single-button control, so each tier extends independently on demand without an operator stationed at a crank handle. The control method is Siemens PLC, which gives maintenance teams a familiar platform for diagnostics and integration.

The material discharge method is electric assistance. That matters in a low-clearance building where the forklift operator may have limited room to maneuver: the rack does the positioning work, and the forklift does the lift. Loading and unloading times in roll-out cantilever configurations drop by up to 30% compared with static retrieval from deep stacks, largely because the operator is not rearranging adjacent material to reach the target bundle.

What This Means for Long Steel Profiles and Pipe

Long profiles are not pallet-friendly. They overhang, they roll, and they resist uniform support. A cantilever arm is the natural holder because it presents the load from the side, with no front column in the way. The mobile version adds a second layer of fit: the tower itself moves, so the aisle does not have to be wide enough for every possible approach angle at every tower.

For a steel distributor storing 6-meter and 9-meter pipe, that translates into a layout where the rail line does the organizing. The HC-G9055EM-7, rated at 5,000 kg per level across 7 towers with customized layering, is built for exactly this mix: a small number of heavy, long SKUs held in a compact rail footprint, with retrieval on demand. The ground rail structure keeps the towers aligned and stable, and the shared picking aisle keeps the floor from being carved into a grid of permanent forklift lanes.

Frequently Asked Questions

How much floor space can a mobile cantilever rack actually save?
Published figures for mobile cantilever systems range from roughly 40% space reduction to 80% capacity increase within the same footprint, depending on the number of towers, the aisle width of the comparable static layout, and the load lengths involved. The savings come from eliminating permanent aisles, not from reducing the storage volume per tower.

Can a motorized mobile cantilever rack work in a warehouse with a low ceiling?
Yes. The format is designed for low-clearance buildings because it gains density from shared aisles rather than from height. Herochu’s rail-type telescopic cantilever shelves are specifically engineered for space-constrained, low-height warehouses, with a ground-rail structure that remains stable under load.

What happens if the power fails while a tower is in motion?
A Siemens PLC-controlled drive system is designed to stop under controlled deceleration when power is interrupted. The mechanical structure of the rail and carriage holds position, and the material remains on the arms. The retrieval aisle can typically be restored manually or under maintenance procedure, depending on the installation’s safety protocol.

Does the shared aisle slow down picking compared with a fixed aisle?
In practice, the opposite is common. The operator calls the tower, the tower moves to the aisle, and the pick happens at the open arms. There is no walking a long fixed aisle to find the right bay. Herochu’s electric per-level drive and single-button control are built to keep the repositioning step short and predictable.