Stop the "missing lite" chaos at your IGU line. Your tempering furnace shouldn't be idling while operators hunt for a specific 6mm spacer. Streamline your glass fabrication workflow with a specialized Floor Harp Rack designed for high-mix, low-volume sequencing.
In a modern glass fabrication plant, the CNC cutting table is fast, and the tempering furnace is hungry. But the space in between? That is where efficiency often dies. If you are handling custom orders—especially for architectural projects requiring varied sizes of Insulated Glass Units (IGUs)—sorting glass lites effectively is the difference between a profitable shift and a logistical nightmare.
Traditional A-frames are excellent for bulk storage but terrible for "picking" individual sheets for pairing. Leaning glass against a wall results in "domino" breakage risks and makes retrieving the middle sheet impossible without moving five others. This is why the Floor Harp Rack (often called a Harp Cart or H-Rack) is the industry standard for WIP (Work-In-Progress) sorting.
The primary function of a harp rack isn't just storage; it's sequencing. When producing IGUs, you need to pair the inner and outer lites (and potentially a middle lite for triple glazing) before they hit the washer or the assembly line.
Our harp racks feature numbered slots on the base. This allows your CNC operators to load glass in the exact order required by the sealing robot or manual assembly team. No more hunting for "Lite B" while "Lite A" gathers dust.
The numbered slot system (1-40) allows for precise pairing of IGU components, reducing downtime at the assembly line.
Handling soft-coat Low-E glass requires surgical precision. A minor scratch from a metal burr or glass-on-glass friction can result in a rejected unit at the quality control station. The Floor Harp Rack mitigates this risk through its "floating" design.
Key Protection Features:
Close-up of the PVC-coated steel dividers which ensure soft-coat Low-E glass remains scratch-free during storage.
A common frustration with standard harp racks is that they often rely on two parallel rails of rollers. This is fine for large squares, but what happens when you have a tall, narrow sidelite or a small transom window? They fall through the gap.
Our solution is the Full Base Floor Harp Rack. By utilizing a slotted floor design (often using HDPE or PVB materials), the rack provides continuous support from front to back. This allows you to mix standard door panels with narrow side-lites on the same cart without safety hazards.
Moving 2,000 lbs of glass across a factory floor requires more than just good casters; it requires control. Standard carts can be dangerous if they drift during loading or unloading.
Our racks are equipped with a specialized Foot-Actuated Lifting Mechanism. When the rack is at the station (e.g., next to the glass washer), the operator depresses the pedal. This engages a floor lock that lifts the casters slightly or wedges the frame, making the rack immovable. This ensures that when an operator pushes a heavy sheet of laminated glass into the slot, the rack doesn't roll away, preventing potential back injuries and glass breakage.
The integrated foot-lock mechanism ensures the rack remains stationary during the loading of heavy glass sheets.
We understand that every glass fabrication floor layout is different. While we offer custom sizes, here are the specifications for our standard heavy-duty model.
| Feature | Specification |
|---|---|
| Dimensions (L x W x H) | 59" x 39" x 71" (Standard) / Customizable |
| Glass Capacity | 40 Slots / 50 Slots / 60 Slots |
| Slot Width | 1/2" (for standard IGUs) or Custom for Laminated Stacks |
| Material | Q235A Carbon Steel with Powder Coating |
| Mobility | Heavy-Duty Polyurethane Casters (2 Swivel w/ Brake, 2 Rigid) |
| Assembly | Knock-down (Bolted) Design for efficient shipping |
Importing industrial equipment often incurs massive freight costs due to volume. We have engineered our Floor Harp Racks with a fully bolted, knock-down assembly. This means we can flat-pack the units, fitting significantly more racks into a shipping container compared to fully welded alternatives. You get the same structural rigidity of a welded frame once assembled, without paying to ship "air."
The knock-down design allows for high-density container loading, significantly reducing your landed cost per unit.
1. Can this rack handle heavy laminated glass sheets?
Yes. The base is reinforced with Q235A carbon steel and supports dynamic loads over 3,000 lbs. For laminated glass, we recommend our heavy-duty nylon roller option to reduce friction during loading.
2. Will the dividers scratch soft-coat Low-E glass?
No. The steel dividers are fully sheathed in industrial-grade PVC tubing. The glass only contacts the PVC and the bottom rollers, protecting delicate coatings like soft-coat Low-E from abrasion.
3. Can I order custom slot widths for thicker insulated units?
Absolutely. While the standard spacing is often set for single lites (approx. 10-15mm), we can manufacture custom spacing to accommodate sealed IGU units or thicker multi-laminate security glass.
4. How does the rack perform in high-temperature environments near tempering furnaces?
The steel frame is electrostatic powder-coated for durability. However, the PVC sleeves and nylon rollers have temperature limits. The rack is designed for pre-tempering loading or post-tempering cooling zones, but should not be placed inside ovens.
5. Is the rack shipped fully assembled?
To save you shipping costs, we ship the racks in a flat-pack (knock-down) format. They are easily assembled on-site using standard tools. A detailed assembly video and guide are provided.
