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Glass storage integration / Hrack application note
A static shelf base can become a controlled glass sorting zone: four Hrack units, 25 sheets of 12mm glass per unit, 100 sheets in total—subject to drawing review of clearance, floor loading, and the final load path.
If the bottom level of an existing static shelf is only being used as dead space, a mobile glass harp rack can be designed into that footprint instead of adding another storage aisle. The practical question is not simply whether a harp rack fits underneath. The shelf height, clear opening, rack envelope, floor condition, access path, and combined load must all be checked together.
Project 13532 provides a clear application reference: a 2700 × 2400 × 2000 mm static storage shelf was planned to take four Hrack units, each approximately 650 × 2400 × 1900 mm. Each rack was allocated 25 sheets of 12mm glass. Four units therefore create a planned capacity of 100 sheets, with a combined glass load of approximately 2500 kg. This is a project arrangement—not a universal capacity rating. The rack, shelf, floor, and handling method must be confirmed against the approved drawing.
Can a harp rack go under a static shelf?
Yes, when the lower bay is treated as an engineered integration zone rather than an unverified gap. The 13532 layout keeps the rack depth aligned with the 2400 mm shelf depth, while the approximately 1900 mm rack height is placed inside the 2000 mm overall shelf height. That leaves only a limited vertical margin, so actual beam thickness, underside obstructions, floor flatness, caster or foot-lock travel, and safe operator access must be measured before fabrication. If the opening cannot accept the rack while loaded, use the lower bay for staged loading and move the rack to a verified sorting position instead. The suitable solution may be a fixed-base configuration, a mobile configuration, or a split workflow with storage in the shelf and sorting outside it.
How does the rack steady heavy 12mm sheets?
The load is managed through controlled contact points, not by letting glass lean directly against painted steel. A full slotted base or slotted support board gives each sheet a defined bottom position. Nylon roller or slot components help the operator place and retrieve sheets without dragging an edge across the base. Sleeved steel-wire dividers create separate vertical channels and provide a softer barrier between adjacent sheets; the sleeve material and spacing should follow the approved project drawing, especially for coated or processed glass. At the rear, an EPDM cushioning strip supports the lean angle and reduces hard contact with the frame. For a mobile configuration, the foot-operated mechanical lock or lifting top bar is engaged before sorting or extended stationary storage. It stabilizes the rack at the work position; it does not replace a structural review of the shelf or floor.
How should four racks and 100 sheets be calculated?
Start with the sheet count, then verify the geometry and load path. In the 13532 arrangement, 25 sheets per rack × 4 racks = 100 sheets. The approximate 2500 kg total is then distributed across the four rack positions, but the resulting point loads are not automatically equal in real handling. Operators may load one rack first, place sheets off-center, or move a rack while partially loaded. The shelf support points, rack base, floor, and any caster or stabilizer loads must therefore be checked for the actual operating condition. Hrack is a solution-type product: slot count, rack width, divider spacing, base style, lock arrangement, and dimensions can be configured, but the combined shelf-and-rack capacity is not a single standard number.
What to confirm before converting the shelf base
- Measure the bay: confirm the clear width, depth, height, beam underside, aisle turning space, and rack removal route—not only the shelf’s nominal outside dimensions.
- Confirm the 12mm handling method: define sheet size, edge condition, coating sensitivity, slot spacing, rear lean angle, and whether a full slotted base or roller base is appropriate.
- Check the combined load: use the 13532 planning basis of 25 sheets per unit, four units, 100 sheets, and approximately 2500 kg only as the project reference; have the final rack, shelf, floor, and point loads reviewed from drawings.
- Define static and dynamic modes: lock the rack before sorting, keep the lower bay clear of collision hazards, and decide whether the units are stored in place or rolled to a separate picking position.