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Stop accepting "acceptable breakage" rates in your window fabrication line. When transporting heavy Insulated Glass Units (IGUs) or fully framed window sashes, the difference between a profitable shipment and a remanufacturing nightmare lies in your rack's geometry and cushioning. Ditch the rotting wood A-frames for an industrial solution designed for the glazing workflow. |
In the window and door manufacturing sector, "dividers" often imply flimsy vertical rods found on light-duty carts. However, when you are moving commercial architectural glass or heavy vinyl/aluminum window sashes, those generic carts fail. They allow for "rattling" during forklift transport, leading to corner damage and seal failures in IGUs.
The L-Shape Glass Holding Rack (Grack) replaces the need for loose dividers with a superior gravity-lock design. By utilizing a precise 90° vertical support with a 3-5° engineered tilt, the sashes rest securely against the backboard. This eliminates the "slap" effect caused by loose dividers during truck braking or cornering.
The engineered 3-5° tilt ensures window sashes remain static during transport, removing the need for mechanical dividers.
The primary enemy of tempered glass and soft-coat Low-E layers is metal-on-glass contact. Standard racks often use glued-on rubber that peels off after a few months of exposure to cutting fluids or outdoor heat.
Our solution utilizes Steel-core Rubber Profiles. Unlike simple foam dividers, these profiles are mechanically fastened to the rack using self-tapping screws. The internal steel plate within the rubber distributes the point-load pressure of heavy IGUs, preventing the glass edge from slicing through to the steel frame. This ensures that your window sash transport carts maintain their protective integrity for years, not just weeks.
Securing sashes with ratchet straps against steel-core rubber profiles eliminates movement and edge chipping.
If you deliver windows to job sites or distribution centers, you know the pain of shipping air. Traditional A-frames take up the same amount of truck space empty as they do full.
The defining feature of our L-Shape Glass Holding Rack is its **Nesting Capability**. The L-geometry allows empty racks to stack horizontally (like shopping carts) or vertically (inverted). This compresses the volume of 7 empty racks into the space of roughly 2 full ones. For a glass fabricator, this means slashing return freight costs by up to 70%, turning your logistics department from a cost center into an efficiency engine.
Empty nesting configuration dramatically reduces warehouse footprint and return shipping costs.
Q: Can these racks handle both loose glass lites and framed window sashes?
A: Yes. The bottom ledge width (typically 750mm-950mm) is sufficient to stack multiple loose lites or several fully framed window units. The 3-5° tilt keeps both types stable, provided they are secured with ratchet straps.
Q: How do we prevent the "domino effect" when unloading single sashes?
A: Unlike A-frames where glass is stacked on both sides, the L-rack is single-sided. We recommend using a secondary retention bar (safety pole) that holds the remaining stack in place while the front sash is removed, ensuring worker safety.
Q: Will the steel rack rust if left at a construction job site?
A: Standard units come with an industrial electrostatic powder coating (RAL 5010) suitable for indoor and short-term outdoor use. For long-term outdoor storage (e.g., waiting for glazing installation), we recommend our Hot-Dip Galvanized option for 10+ years of corrosion resistance.
Q: What is the weight capacity compared to a wooden crate?
A: A wooden crate is single-use and unpredictable. Our standard L-racks are rated for 3,300 lbs (1,500 kg) to 8,800 lbs (4,000 kg) depending on the model, utilizing Q235 structural steel to ensure zero flex under load.
Q: Do you offer custom sizes for oversized patio door sashes?
A: Absolutely. While our standard 1600mm length fits perfectly in 40HQ containers, we manufacture "Jumbo" racks (up to 2440mm long) specifically for oversized sliding door panels and curtain wall units.
