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日本語Drive-In pallet racking is a high-density storage solution designed to optimize warehouse space, particularly suitable for cold storage, 3PL centers, and automated manufacturing facilities. With its continuous structure, forklifts drive directly into the rack frame, increasing storage capacity by 50-80% compared to traditional Selective racking. Việt POS Rack supplies Drive-In racking according to international standards AS4084 (Australia), EN 15512 (EU), and RMI (USA), ensuring superior safety and durability.
What is Drive-In Pallet Racking? LIFO Operating Principle
Drive-In pallet racking is an industrial storage system that allows forklifts to drive directly into the rack frame to retrieve or place pallets. The operating principle is LIFO (Last In, First Out) – the last pallet in is the first one out. The structure consists of upright frames, pallet support beams, and X or Z bracing systems. Load capacity per beam ranges from 500kg to 5,000kg, maximum span is 3,600mm, and depth up to 12m. Tier height is customizable, typically from 1,200mm to 2,500mm.
Comparison of Drive-In with Selective, Drive-Thru, and Push-Back Racking
Selective racking allows 100% pallet access (FIFO), but density only reaches 60-70%. Drive-In increases density to 80-85% but is LIFO only. Drive-Thru is similar to Drive-In but has entry points at both ends, supporting FIFO, with lower density (75-80%). Push-Back uses a sliding mechanism, density 80-85%, FIFO, but higher cost. The table below provides a detailed comparison.
| Criteria | Selective | Drive-In | Drive-Thru | Push-Back |
|---|---|---|---|---|
| Density (%) | 60-70 | 80-85 | 75-80 | 80-85 |
| Method | FIFO | LIFO | FIFO | FIFO |
| Accessibility (%) | 100 | 20-30 | 30-40 | 40-50 |
| Cost/m² | Low | Medium | Medium | High |
| Application | Versatile | Cold storage, 3PL | Food, FIFO | Diverse goods warehouse |
| Max load (kg/beam) | 5,000 | 5,000 | 5,000 | 3,000 |
Detailed Technical Specifications: Load, Span, Height, Bracing
Việt POS Rack’s Drive-In racking is manufactured from Q235 steel (yield strength 235 MPa) or Q345 (345 MPa) depending on requirements. Load per beam: 500-5,000kg. Horizontal span: 1,800-3,600mm. Depth: up to 12m (typically 6-12m). Tier height: 1,200-2,500mm. Number of tiers: 2-6 tiers. Bracing system: X-bracing or Z-bracing depending on load and height. Powder coating thickness 60-80μm or hot-dip galvanizing 80μm for corrosion resistance.
In-depth Applications: Cold Storage -25°C, 3PL, Automotive Manufacturing, F&B, Pharmaceuticals, Textiles
Drive-In racks are suitable for harsh environments. In -25°C cold storage, hot-dip galvanized steel resists corrosion, and reinforced bracing systems withstand low temperatures. For 3PL, high density optimizes warehouse rental costs. Automotive manufacturing stores heavy components (1,500-3,000kg/pallet). F&B requires FIFO, so Drive-Thru is used. Pharmaceuticals need temperature control; Drive-In racks integrate sensors. Textiles store large fabric rolls with lighter loads (500-1,000kg).
Safety Standards: Safety factor, seismic zone, anti-collapse mesh, column protector
Drive-In racks achieve a safety factor ≥1.5 according to EN 15512. Design withstands earthquakes (seismic zone 2-4) depending on the region. Anti-collapse mesh is installed to prevent pallets from falling. Column protectors made of 5mm thick steel guard rack legs against forklift impacts. End frame protection reinforces the end frames. Safety pin system prevents beam dislodgement. Việt POS Rack provides free 3D drawings and load testing using FEM software.
Calculation Example: 1000m² warehouse, 1000kg pallet – number of pallet positions, ROI vs flat storage
Assume a 1000m² warehouse (height 8m), pallet 1000kg (size 1200x1000mm). Flat storage: stacking 2 pallets, area 1.2m²/pallet → 833 pallets. Drive-In rack: density 80%, height 6 levels, each level 1.2m → 6 pallets/position, area 1.2m²/position → 1000m² x 0.8 / 1.2 x 6 = 4,000 pallets. ROI: rack cost ~800 million VND, saves 50% warehouse rental per year, payback period 18-24 months. See detailed calculation table at Drive-In Racks.
| Metric | Flat Storage | Drive-In |
|---|---|---|
| Number of pallets | 833 | 4,000 |
| Density (pallet/m²) | 0.83 | 4.0 |
| Investment cost (million VND) | 0 | 800 |
| Warehouse rental cost/year (million VND) | 1,200 | 600 |
| ROI (months) | N/A | 18-24 |
Materials: Q235 vs Q345, hot-dip galvanized 80μm vs powder coat 60-80μm
Q235 steel (yield strength 235 MPa) is suitable for low loads (under 2,000kg/beam) and is cheaper. Q345 (345 MPa) is used for heavy loads (2,000-5,000kg/beam) with better load-bearing capacity. Powder coating is 60-80μm thick, providing standard corrosion resistance. Hot-dip galvanizing is 80μm thick, resistant to humid environments, chemicals, and cold storage. Việt POS Rack recommends galvanizing for cold storage and 3PL to increase lifespan.
5 Common Mistakes When Installing Drive-In Racks
1. Overloading: exceeding the design load capacity (e.g., placing a 1,500kg pallet on a beam rated for 1,000kg) causes rack collapse. 2. Bent beams: due to forklift impacts, lack of periodic inspection, leading to instability. 3. Not using safety pins: beams easily dislodge under load, causing accidents. 4. No column protectors: rack legs hit by forklifts, reducing load-bearing capacity. 5. Incorrect pallet span: placing a 1200mm pallet into a 1100mm span causes jamming or falling. Always consult technical advice before installation.
Frequently Asked Questions
Can Drive-In racks be used in cold storage at -25°C?
Yes, Việt POS Rack’s Drive-In racks use 80μm hot-dip galvanized steel, resistant to -25°C without becoming brittle. The bracing system is reinforced to counter thermal contraction. Design load is reduced by 10% compared to normal environments to ensure safety.
What is the delivery time for Drive-In racks?
Standard lead time is 15-30 days depending on quantity and technical requirements. Việt POS Rack has a factory in Tan Duc Industrial Park, Long An, manufacturing directly with no intermediaries. Contact hotline 0796 700 777 for a quick quote.
Do Drive-In racks come with a warranty?
Yes, a 24-month warranty from the delivery date. The warranty covers material defects, workmanship, and electrostatic painting. Damage from overloading, impacts, or improper installation is not covered.
How to calculate the number of pallet positions for a 1000m² warehouse?
For Drive-In racks, number of pallet positions = (warehouse area x density) / (area per position) x number of levels. Example: 1000m² x 0.8 / 1.2m² x 6 levels = 4,000 pallets. Việt POS Rack offers free 3D design and sends detailed drawings before production.
Can Drive-In racks be integrated with automated robots?
Yes, Drive-In racks can integrate with AGVs (Automated Guided Vehicles) or retrieval robots. Special design requirements: rack frame accuracy ±2mm, flat floor surface, guidance system. Việt POS Rack has provided solutions for an automobile manufacturing plant in South Korea.
Contact Việt POS Rack now for consultation on Drive-In rack design suitable for your warehouse. Hotline: 0796 700 777 – Email: info@vietposrack.vn.
