Custom OEM Push Racks Factories & Exporter

Structural Dynamics: Push Back Carts vs. Gravity Flow Rollers

In high-density dynamic storage, push-back racking operates on a Last-In, First-Out (LIFO) storage mechanism using a series of nested rolling carts that glide on inclined structural steel rails. As a forklift pushes a new pallet into the lane, it gently displaces the previous pallet backward along an engineered gradient of 1.5% to 2.5%. Gravitational potential energy maintains positive lane contact without external power supplies or complex electric motors.

Unlike standard Drive-In racking where forklifts must enter the structural frame—drastically increasing upright collision hazards—push-back systems limit forklift travel exclusively to front access aisles. This configuration achieves up to 90% higher storage density than selective systems while dramatically reducing operational cycle times and maintenance downtime.

Material Metallurgy & Safety Factors

All structural columns in our Guangzhou production hub are shaped from certified Q235B and Q355B hot-rolled structural steel coils. Uprights undergo CNC automated piercing with continuous cold roll-forming lines to prevent micro-fracturing along the bends. Prior to electrostatic powder curing at 200°C, all profiles undergo a rigorous 4-stage surface treatment: alkaline degreasing, clean-water rinse, phosphating, and deionized passivating. This ensures 500+ hours of salt-spray resistance, essential for refrigerated facilities and humid shipping routes.