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Stop shipping "air" back to the plant. |
If you are managing a fleet for a glass wholesaler or a window manufacturer, you know the pain of "dead freight." You send out a truck fully loaded with IGUs or tempered panels. The delivery is made. Now, that truck has to come back. With standard welded A-frames, you are stacking maybe 20 empty racks in a 53-foot trailer. You are essentially paying for fuel and driver hours to transport steel air.
This is where the Collapsible A-frame glass rack dimensions and capacity become the most critical metric in your logistics chain. It’s not just about what it holds; it’s about how it folds (or nests).
Figure 1: Empty L-racks nesting "shopping cart style" to maximize return truck density.
Unlike the symmetrical triangle of a traditional A-frame, our Grack (L-Rack) system utilizes a 90-degree vertical post with a calculated 3-5° safety tilt. This geometry is crucial for two reasons:
When you are moving 1/2" laminated glass or heavy jumbo sheets, "approximately" isn't good enough. You need precise engineering data to ensure safety and container optimization.
| Specification | Standard Export Model | Jumbo / Window Model |
|---|---|---|
| Dimensions (L x W x H) | 63" x 37.4" x 63" (1600x950x1600mm) | 80" x 48" x 63" (2032x1220x1600mm) |
| Safe Working Load (SWL) | 3,300 lbs (1.5 Tons) | 6,600 lbs (3.0 Tons) |
| Material | Q235 Carbon Steel (Full Seam Welded) | Q235 Reinforced Box Section |
| Container Capacity (40HQ) | ~98 Units (Nested & Stacked) | ~60 Units |
Figure 2: Heavy-duty structural design capable of supporting up to 4 tons of stone or glass slab.
The Collapsible A-frame glass rack dimensions and capacity are engineered using Q235 steel square tubes (typically 60x60mm for main posts). We don't spot weld; we use full seam welding. This is non-negotiable when you are transporting brittle materials like glass. A flexing rack means a cracked lite.
The number one cause of "shell chips" or edge damage during transport isn't the truck hitting a pothole; it's the glass cutting through the protection pad and hitting the steel rack. Once the glass touches steel (Metal-on-Glass contact), a stress riser is created, and the lite will likely run during tempering or installation.
Figure 3: Steel-core rubber profile screwed directly into the frame—no glue, no peeling.
We solve this with our proprietary Steel-Core Rubber Profile:
Your racks need to move. They need to go from the cutting line, to the tempering furnace, onto a truck, and eventually be lifted by a crane at a high-rise project.
Our racks are designed for multi-modal handling:
Figure 4: Engineered forklift channels ensure safe transport within the warehouse and onto trucks.
1. Can I stack these racks when they are fully loaded with glass?
No. The nesting/stacking feature is strictly for empty racks during return shipping or storage. When loaded with glass, they must be placed on the floor or transport vehicle deck. Stacking loaded racks is a severe safety violation.
2. How many empty racks fit in a standard 53' semi-trailer?
Due to the nesting design, you can fit approximately 100-112 empty standard L-racks in a 53' dry van or flatbed, compared to only ~20-24 traditional A-frames. This drastically cuts your return freight bills.
3. Will the rubber discolor or damage soft-coat Low-E glass?
No. We use non-marking, high-quality EPDM or urethane compounds specifically formulated for the glass industry. They are resistant to ozone and UV, ensuring they don't degrade and leave residue on sensitive coatings.
4. Do you offer custom dimensions for oversized "Jumbo" sheets?
Yes. While our standard is 1600mm long, we regularly manufacture custom lengths (e.g., 2440mm / 96 inches) for clients handling Jumbo sheets or architectural facades. We can also adjust the "lip" depth for thicker stacks.
5. Are these racks galvanized or painted?
Standard finish is Electrostatic Powder Coating (usually RAL 5010 Blue). However, for racks used primarily outdoors or in high-humidity climates (like coastal glazing projects), we strongly recommend Hot-Dip Galvanizing (HDG) to prevent rust from compromising the structure or staining the glass.
