CE Certified Gravity Flow Rack Supplier & Exporters

The industry standard slope angle ranges between 2.8% and 3.5% (approximately 1.6° to 2.0° declination). A lighter load (e.g., 300–500 kg) requires a slightly steeper gradient (~3.5%) to overcome static roller inertia, whereas heavy 1,200–1,500 kg industrial loads utilize ~2.8% to prevent excessive terminal velocity. To ensure reliable restartability after a pallet rests stationary in deep lanes, HEDA utilizes low-friction dual-bearing roller sleeves and installs brake rollers equipped with an initial disengagement threshold, preventing flat-spotting of bottom deck boards.

CE compliance (governed by European Standard EN 15512:2020) mandates limit state design procedures, full-scale structural testing of beam-end connectors, stub column compressive yield tests, and base plate shear evaluations. It sets a strict safety factor (typically γM = 1.4 for materials and γF = 1.4 to 1.5 for static/dynamic actions) and limits maximum allowable beam deflection to L/200 under design load. For global importers, having CE verification guarantees civil building permitting approvals and assures workplace health and safety compliance during facility inspections.

In lanes exceeding 4 pallets in depth, accumulated forward gravitational push (line pressure) can exceed several metric tons against the discharge stop. HEDA engineers install mechanical Pallet Separators (also known as Time-Delay or Weight-Actuated Ramp Stops) approximately one pallet length behind the discharge face. When a forklift lifts the front pallet, the separator remains engaged, keeping all upstream pallets locked in place. Only after the extraction is complete and the safety latch resets do the trailing pallets roll forward one position in a controlled sequence.

Industrial gravity flow racking requires a reinforced concrete slab rated for significant concentrated point loads at the baseplates (typically 50 kN to over 150 kN per column depending on frame height and bay depth). Concrete compressive strength must achieve a minimum of C20/25 or C25/30 (3,000–4,000 PSI). In terms of floor flatness, DIN 18202 or EN 15620 Class 300 tolerances are recommended. Excessive slab undulation can skew the calibrated track slope, causing pallets to drift laterally into side guides.

Export shipments from our South China port are planned using dedicated 3D container packing algorithms. Upright frames are pre-assembled or nested flat in dense steel-banded bundles with wooden dunage and corner protection to maximize 40ft High Cube (HC) container capacity. Roller bed modules are crated in rigid timber skids to prevent axle deflection. Every export shipment includes full moisture desiccant bags, stretch wrapping, and detailed container loading diagrams to assist offloading.

Standard roller tracks are engineered for smooth-runner wood pallets (e.g., standard Euro 800x1200mm or industrial 1000x1200mm). For operations handling mixed pallet types, plastic runners, or skids with broken bottom boards, HEDA specifies full-width cylindrical steel rollers rather than 3-lane split skate wheels. Furthermore, slave pallets, low-profile pallet flow trays, or heavy-duty polyurethane roller tracks can be integrated to ensure 100% jam-free performance across diverse load profiles.