China Best Pallet Racking Push Through Protection Factory & Suppliers

Standard selective pallet racking is structurally calculated for a 50mm to 75mm (2 to 3 inches) front and rear pallet overhang past the structural load beams. Consequently, a push-through backstop bar must be engineered with a dedicated standoff bracket of 75mm to 100mm. This positioning ensures that when the pallet edge contacts the stop, the wood or composite stringer is safely supported across both front and rear load beams, preventing structural eccentric loads while preserving the longitudinal flue space.

NFPA 13 mandates that back-to-back rack arrangements maintain an open, unobstructed longitudinal flue space between racking rows (typically 3 inches or 6 inches wide depending on storage height and sprinkler hazard category). Without rigid mechanical backstops, forklift operators frequently push pallets too far back, bridging the gap between back-to-back racks. Mechanical stops guarantee that this vertical thermal escape channel remains clear, allowing upward heat to activate fire sprinkler heads promptly and enabling water curtains to reach lower tiers unobstructed.

No. Push-through backstop devices are designed as operator tactile warning cues and containment barriers for resting pallets. Under ANSI MH16.1 specifications, backstop assemblies are engineered to withstand horizontal proof-load impacts (typically rated from 1,000 lbs to 2,500 lbs of concentrated horizontal force) without shearing or catastrophic deflection. They are not engineered to resist the full kinetic momentum of an accelerating 5-ton forklift. Their function is to provide an unmistakable tactile stop signal to the operator and prevent manual misplacement.

Tubular steel push-through bars are optimal for unitized, solid-wrapped pallet loads to establish rigid stopping points. Conversely, offset wire mesh safety netting or modular welded wire containment screens are essential in scenarios where cartons are stacked loose, shrink-wrap integrity might be compromised, or where picking tunnels and pedestrian walkways run beneath or behind the pallet bays. Wire mesh panels catch individual fallen cartons, loose products, or fragmented pallet boards from tumbling into travel paths.

Yes. Guangzhou Heda Shelves supplies specialized universal retrofit brackets that bolt securely around existing standard teardrop, slotted, or diamond-punched upright columns and roll-formed box beams. Retrofit systems require minimal field measurement: our engineering team requires the column width, beam depth profile, pallet dimensions, and desired offset clearance to produce pre-drilled, precision-matched hardware kits that require zero on-site welding.

For standard ambient distribution warehouses, our 10-stage pre-treated electrostatic powder coating (utilizing acid pickling and phosphating) provides excellent scuff and oxidation resistance. For coastal ports with high saline ambient air, chemical facilities, or deep-freeze cold storage rooms (-20°C to -30°C), we recommend continuous hot-dip galvanized finishes or pre-galvanized structural sheet fabrication to completely eliminate rust creeping and prevent premature structural fatigue.