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In the window fabrication business, "standard" doesn't exist anymore. From oversized commercial IGUs to delicate custom sashes, your shop floor battles edge damage and wasted staging space daily. You need a transport system that adapts to your production line, protects soft-coat Low-E layers, and doesn't eat up your profit in return freight costs. |
If you are managing a high-volume glazing line, you know the sound of money breaking. It’s that sharp crack when a Custom size window fabrication transport cart fails to support a heavy double-glazed unit properly, or when a forklift tyne clips the bottom edge of a frame.
Traditional A-frames are stable but notoriously space-inefficient. Wooden crates are a sunk cost that creates disposal headaches at the jobsite. The modern glass supply chain requires a hybrid: a rack that offers the rigidity of a static storage system with the mobility required for truck delivery and "Just-in-Time" factory flow.
Vertical storage with steel-core rubber lining ensures zero metal-on-glass contact for high-value IGUs.
The most critical failure point in window transport isn't the steel; it's the interface between the rack and the glass. Standard glued-on rubber pads peel off after a few months of exposure to UV and rain, leaving raw steel exposed. When you are transporting Wholesale Tempered Glass or soft-coat Low-E units, raw steel exposure guarantees scratches or shell chips.
Our solution utilizes a Steel-core Rubber Profile. Unlike adhesive pads, this profile is mechanically fastened to the Q235 steel frame with self-tapping screws. The internal steel insert distributes the compressive load of heavy Insulated Glass Units (IGU), preventing the glass edge from cutting through the rubber. This ensures that from the tempering oven to the installation site, your product never touches bare metal.
For distributors delivering to glazing contractors, the return trip is the profit killer. Driving a truck full of empty, non-stackable A-frames is essentially shipping air.
Nesting capability reduces return volume by up to 70%, turning logistics into a competitive advantage.
The "Grack" L-Shape design addresses this specific logistics pain point. By utilizing an asymmetrical L-frame with a computed geometric base, these racks can nest (stack into one another) when empty. You can condense 7-10 empty racks into the footprint of just 2 or 3 fully assembled ones. This reduces reverse logistics costs by approximately 70% and clears up valuable square footage in your warehouse when inventory is low.
Window fabrication often involves mixed loads—combining 1/4 inch shower doors with heavy architectural laminated panels. A lightweight aluminum cart will flex under the weight of a 3,000 lb load, causing the glass to bow and eventually shatter due to stress concentration.
Heavy-duty construction supports Jumbo size sheets and mixed loads without structural deflection.
Our racks are fabricated from Q235 Carbon Structural Steel (ASTM A36 equivalent), featuring 50x50mm or 60x60mm square tubing with a wall thickness of up to 3.0mm. We use full seam welding rather than stitch welding to ensure the frame remains rigid under dynamic transport loads. With a 3-5° tilt angle, the center of gravity is optimized to keep sheets stable without putting excessive pressure on the glazing beads or seals of your windows.
1. Can these racks accommodate varying glass thicknesses simultaneously?
Yes. The 90-degree base combined with the 4-degree lean allows for mixed stacking of varied thicknesses, from thin 3/32" glass to heavy insulated units. We recommend using ratchet straps and divider bars for mixed loads to prevent "chatter" between sheets during transport.
2. Do you offer custom dimensions for "Jumbo" size window manufacturing?
Absolutely. While our standard export model is optimized for container width (approx. 63 inches long), we regularly fabricate "Jumbo" racks (up to 90 or 100 inches in length) and high-top versions for architectural curtain wall units.
3. How does the "Nesting" feature work for warehouse storage?
The base of the L-rack is geometrically designed with a specific opening that allows one rack to slide into another when empty, similar to shopping carts. This can reduce your required floor storage space by over 60% compared to static A-frames.
4. What prevents the racks from rusting in outdoor glass yards?
Standard units come with an industrial-grade electrostatic powder coating (typically RAL 5010 Blue). For distributors storing racks outdoors in coastal or humid areas, we offer a Hot-Dip Galvanized finish which provides sacrificial zinc protection for 10-20 years against corrosion.
5. Are replacement rubber profiles available?
Yes. Because our rubber profiles are screwed on rather than glued, they are easily replaceable. If a forklift damages a section, your maintenance team can swap it out in minutes without needing to scrape off old adhesive.
