Adjustable Heavy Duty
30,000m²
Automated Plant Facility
30,000t
Monthly Structural Output
300+
Engineers & Technicians
25+ Yrs
Manufacturing Since 2001
Certified Portfolio
Engineered Warehouse Storage Racks & Dynamic Systems
Heavy-duty structural storage configurations verified for high throughput, seismic stability, and compliance with European CE standards (Certificate No. 2435-CPR-8605159).
Safety Protection
Custom Storage
Semi-Automated
European Standard
1000 - 4000kg
Retail & Picking
Dynamic Gravity
Engineering Architecture: Push Back Racks Under CE & EN Standards
In modern industrial intralogistics, Push Back Racking Systems represent one of the most efficient high-density Last-In, First-Out (LIFO) storage configurations available. Unlike static selective racking that requires dedicated forklift access aisles for every double row, or drive-in racking that exposes structural uprights to severe vehicular impacts, a push rack system uses an inclined structural track and nested carriage assembly to store pallets up to 6 positions deep.
Achieving compliance with European Union harmonized standards—specifically EN 15512 (Steel Static Storage Systems: Adjustable Pallet Racking Systems - Principles for Structural Design) and execution standards under EN 1090-1 / EN 1090-2 (Execution of Steel Structures and Aluminium Structures)—requires rigid engineering tolerances, advanced metallurgical profiling, and precise kinetic calculations.
Kinematic Nested Carts
Multi-tiered carts manufactured from heavy-gauge structural steel nested on low-profile inclined tracks. Pallets rest on independent platforms, eliminating wood-to-metal pallet drag and preventing load-jam failure modes.
Inclination Mechanics (2.5° to 3.5°)
Precisely calibrated gradient of 25mm to 35mm per linear meter allows smooth gravitational roll-down controlled by speed dampeners, stopping runaway pallet kinetic surges when front pallets are extracted.
EN 1090 Execution Class 2
Certified factory production control (FPC) ensures cold-formed upright profiles and laser-cut cart tracks maintain yield strength limits, verified by automated ultrasonic weld testing and non-destructive mechanical stress evaluation.
Dynamic Load Kinematics vs. Structural Deflection Limits
Structural reliability in high-bay push back systems is heavily determined by beam deflection thresholds and dynamic horizontal thrust forces during loading. When an operator pushes the incoming pallet against existing loads, the mast forces transfer dynamically through the cart wheels onto the inclined rails and structural cross-beams. According to EN 15512, maximum permissible vertical beam deflection must not exceed L/200 for static load, but for dynamic push back racking, our factory sets an internal engineering parameter of L/300 to avoid cart binding.
| System Type | Pallet Depth | Typical Incline (%) | Deflection Criteria | Standard Compliance | Optimal SKU Density |
|---|---|---|---|---|---|
| Cart-on-Rail Push Back | 2 to 6 Pallets | 2.5% – 3.2% | ≤ L/300 | EN 15512, FEM 10.2.02, CE CPR | Medium to High (5-10 Pallets/SKU) |
| Full-Width Roller Push Back | 2 to 4 Pallets | 1.8% – 2.5% | ≤ L/250 | EN 15512, AS 4084:2023 | Medium (Irregular pallet footprints) |
| Drive-In Racking (Comparison) | 4 to 10 Pallets | 0% (Flat rail) | ≤ L/200 | EN 15620, ISO 9001 | High (Risk of mast collision) |
| Radio Shuttle System | 10 to 40+ Pallets | 0% (Automated) | ≤ L/350 | CE Machinery Directive 2006/42/EC | Extremely High Throughput |
By preventing horizontal rail deflection, nested cart wheels (mounted on permanently sealed, anti-friction chrome steel bearings) travel without the common jamming problems reported with low-cost, non-certified alternatives.
Future Sourcing & Procurement Trends for Industrial Racking
Logistics directors and engineering procurement teams are facing rising industrial real estate costs, tighter regional seismic compliance mandates, and urgent decarbonization requirements. Sourcing push racks is no longer merely comparing unit steel weights—procurement managers are evaluating lifecycle performance, cold-chain capabilities, and modular compatibility.
1. Sub-Zero Cold Chain Optimization
Refrigerated warehouse space costs 3 to 4 times more than ambient storage. The rapid expansion of cold-chain logistics demands push back systems equipped with specialized low-temperature polyalphaolefin (PAO) synthetic greases that remain operational at -30°C without crystallizing, preventing premature cart motor and bearing lockups.
2. Decarbonized & Circular Green Steel
Under EU CBAM (Carbon Border Adjustment Mechanism) and ESG supplier codes, international factories must supply full Environmental Product Declarations (EPD). Tier-1 manufacturers are transitioning to high-tensile hot-rolled Q355B coils optimized for lower weight-to-load ratios, cutting embodied carbon per pallet position by up to 18%.
3. Hybrid AMR & Shuttle Interoperability
Modern distribution centers are pairing front-face push back rack arrays with automated mobile robots (AMRs) and automated counterbalanced forklifts. Standard cart front-stoppers are being redesigned with laser-reflective positioning sensors and mechanical guide flanges to accommodate automated robotic forks without human intervention.
4. Dynamic Dynamic Seismic Verification
Following updated seismic zones in New Zealand (NZS 1170.5), Australia (AS 4084:2023), and Mediterranean Europe (Eurocode 8), procurement requires dynamic multi-modal spectral analysis. Push racks require dual-axis baseplates, thickened bottom upright anchors, and row spacers designed to withstand inter-story lateral drift without cart dislodgement.
5. Total Cost of Ownership (TCO) Prioritization
Low-cost fabricators often omit cart anti-lift mechanisms or use soft nylon rollers that develop flat spots under heavy long-term loads. Enterprise procurement contracts now demand lifetime fatigue evaluations and drop-in roller cassette modules that can be replaced in minutes without dismantling entire bays.
6. Pre-Engineered Biosecurity & Clean Finishes
Cleanroom pharmaceutical and food-grade storage mandates smooth, zinc-plated or RoHS-compliant electrostatic polyester powder coatings free of toxic heavy metals. For cross-border ocean logistics, suppliers must provide fumigation-free all-steel transport cradles or certified ISPM-15 treated timber to avoid customs quarantine delays.
Factory Qualifications & Production Capability
Established in 2001, Guangzhou Heda Shelves Co., Ltd. operates an advanced 30,000 square meter integrated manufacturing facility with over 300 experienced engineers, CNC tooling experts, and logistics system specialists. Supplying warehouse operators, integrators, and racking distributors worldwide, our factory combines advanced mechanical engineering with high-capacity roll forming.
Official CE Certification
Our structural production holds CE Certification No. 2435-CPR-8605159 under the EU Construction Products Regulation, alongside ISO 9001:2015 Quality Management System No. 18624Q00169R0M. Verification dossiers are openly shared with client engineering consultants prior to contract placement.
30,000 Tons Monthly Capacity
With high-speed automated roll-forming lines, automated punching matrices, and robotic gantry welding systems, our plant easily produces over 30,000 metric tons of certified steel racking components per month, guaranteeing reliable lead times on 50+ container turnkey warehouse installations.
Complimentary 3D CAD Engineering
Our in-house design office provides full CAD structural drawings, 3D parametric renderings, and site-specific calculation packages (including AS 4084, NZS 1170.5, and EN 15512 data) free of charge to streamline approval with local municipal building certifiers.
The 10-Step Lean Manufacturing & Quality Control Workflow
Every beam, upright column, push back carriage, and nested rail assembly is produced through our tightly monitored 10-step manufacturing protocol:
Step 01
Raw Coil Inspection
Spectrometric verification of Q235B / Q355B coil yield strength and composition.
Step 02
Precision Slitting
High-speed CNC slitting to exact coil strip widths with zero burr tolerance.
Step 03
Automated Punching
Multi-station mechanical presses punch teardrop and diamond upright patterns.
Step 04
Cold Roll Forming
24-pass continuous roller stands shape high-moment uprights and beam sections.
Step 05
Cart Profile Bending
Precision press-brake bending of nested push back carriages and track rails.
Step 06
Surface Polishing
Mechanical shot-blasting and edge de-burring for optimal coating adhesion.
Step 07
Robotic Welding
Automated Panasonic robotic welding of beam connectors and cart brackets.
Step 08
Chemical Phosphating
Multi-tank acid pickling, passivation, and ultrasonic degreasing pre-treatment.
Step 09
Powder Coating
Swiss Gema electrostatic powder line curing at 200°C for wear-resistant finish.
Step 10
Assembly & Packing
Trial test assembly, bearing balance check, and steel-stillage export packaging.
Push Racks Procurement: Technical & Engineering FAQ
Direct technical answers to the most common questions raised by warehouse managers, structural engineers, and logistics procurement directors when sourcing CE-certified push back rack systems.
What is the maximum push force required from the forklift?
Forklifts generally need to exert approximately 4% to 5% of the total cumulative lane weight to push back existing pallets. For example, in a 4-deep push back system holding 1,000 kg pallets, the maximum resistance force when pushing the final pallet into position will rarely exceed 150 kg to 200 kg of horizontal thrust. Standard counterbalanced or reach trucks possess more than sufficient tractive force.
How do you verify genuine CE certification under EU 305/2011?
Genuine CE certification requires a Declaration of Performance (DoP) from an EU Notified Body under EN 1090-1 Execution of Steel Structures, not just a self-declared CE Machinery Directive label. We supply our official Certificate No. 2435-CPR-8605159, complete with factory production control audit reports, mill test certificates (MTCs), and weld qualification records for third-party verification.
What prevents cart derailment or binding during uneven loading?
Our carts feature integral steel anti-lift tabs and captive flanged outer wheels that interlock beneath the structural guide rails. Even if a forklift driver deposits a pallet off-center or lifts sharply, the cart cannot tilt, derail, or bind. Heavy-gauge side-guide rollers maintain true directional alignment throughout the push and gravity-return cycles.
Can push back racks accommodate different pallet sizes in the same lane?
Nested cart systems are engineered around specific bottom runner configurations (e.g., standard 1200x1000mm, 1200x800mm Euro, or 1165x1165mm Australian pallets). If your facility handles multiple mixed pallet footprints or weak slip-sheets, we engineer a full-width roller cassette push back rack, allowing variable bottom deck profiles to travel without sagging between cart frames.
How does the system perform in -25°C to -30°C cold storage?
Standard commercial grease solidifies below -10°C, causing carts to lock up. For sub-zero operations, we equip our push back carts with hermetically sealed stainless steel bearings packed with food-grade low-temp synthetic grease (-40°C rated) and apply hot-dip galvanization or low-temperature impact-resistant powder coatings to prevent embrittlement.
What documentation is provided to clear Australian, NZ, or EU customs?
Every export shipment includes a commercial invoice, detailed container packing list with numbered bundle manifests, Bill of Lading, Certificate of Origin (supporting preferential duty under ChAFTA or similar FTAs), mill steel certificates, and ISPM-15 heat-treatment certifications or clean all-steel stillage documentation to satisfy biosecurity requirements.
Ready to Engineer Your High-Density Push Back System?
Submit your warehouse floor layout, clear ceiling height, pallet dimensions, and SKU parameters. Our senior structural logistics engineers will generate a complimentary 3D CAD proposal, load table calculation, and competitive factory-direct quote within 24 hours.
Free 3D CAD Layouts
CE No. 2435-CPR-8605159 Verified
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