High density storage for FMCG

In the Fast-Moving Consumer Goods (FMCG) sector, the battle is fought on margins and volume. When your production line is outputting 50 pallets per hour of beverage or household goods, traditional block stacking creates a logistical nightmare: “Honeycombing” wastes up to 30% of your floor space, and manual FIFO rotation becomes a labor-intensive risk to freshness. You don’t need just storage; you need a high-velocity buffer that maximizes cubic density while strictly controlling expiration dates.

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The Economics of Verticality in FMCG

For FMCG manufacturers located near urban distribution hubs, land cost is often the second highest expenditure after raw materials. The 自動トレイ倉庫 (AS/RS) fundamentally shifts the economic model by trading expensive horizontal footprint for inexpensive vertical space.

Figure 1: Rack Clad structure utilizing vertical space up to 40 meters, turning the racking into the building’s support skeleton.

The starack system utilizes a Rack Clad (Self-Supporting) design. Instead of building a warehouse shell and filling it with racks, the rack itself becomes the structural skeleton of the building. Constructed from Q355 high-strength steel with a fully bolted structure, the system can reach heights of 40 meters (approx. 131 feet). This rigidity is critical. Unlike welded structures that suffer from fatigue, the bolted design withstands the dynamic loads of a Stacker Crane moving at 240m/min without the “sway” that causes sensor errors at high altitudes.

For a standard beverage manufacturer requiring 20,000 pallet positions, a traditional flat warehouse would require approximately 20,000 square meters of land. By implementing a High Bay Warehouse, this footprint shrinks to roughly 5,000 square meters—a 75% reduction in land acquisition and slab costs.

Enforcing FIFO: The “First-In, First-Out” Imperative

In industries like food, dairy, and cosmetics, inventory age is a liability. Manual forklift operators in block-stacked warehouses often default to LIFO (Last-In, First-Out) because picking the pallet closest to the aisle is easier than digging out the oldest stock buried three rows deep. This leads to spoilage and written-off stock.

The starack-Standard and starack-Shuttle systems eliminate human discretion from inventory rotation. The WMS (Warehouse Management System) tracks every pallet’s batch code and production timestamp upon induction.

Feature	Traditional Block Stacking	starack AS/RS Solution
Space Utilization	Low (Honeycombing effect)	High (Vertical & Multi-deep)
FIFO Compliance	Dependent on driver discipline (High Risk)	System enforced (100% Accuracy)
Damage Rate	High (Crushed bottom pallets)	Near Zero (Contactless handling)
Hygiene	Dust accumulation, pest risk	Clean, suited for Food/Pharma

Figure 2: Clean environment storage ideal for GSP-compliant pharmaceutical or food grade finished goods.

The Logic of Batch Flow

For high-volume SKUs (e.g., bottled water or detergent), the starack-Shuttle system offers the highest density. A mother crane deposits a satellite shuttle into a deep lane (up to 10 pallets deep). The shuttle autonomously organizes the lane, condensing space that would otherwise be wasted on forklift aisles. This system allows for strict batch management—an entire lane is dedicated to a specific production run, ensuring that the oldest batch is cleared completely before newer stock is touched.

Synchronizing with Production Speed

FMCG production lines are unforgiving; they do not stop. A downstream bottleneck in the warehouse can force a costly line stoppage. The Automated Storage and Retrieval System acts as a dynamic “shock absorber” between production and dispatch.

The starack stacker cranes utilize S-Curve Acceleration logic in their servo drives. This ensures that liquid products (beverages, shampoos) are moved with high velocity (up to 4m/s horizontal) but without the jerkiness that causes load instability or spillage. Furthermore, the system is designed with Regenerative Braking Units. As the carriage lowers a heavy pallet of finished goods from 30 meters, the motor acts as a generator, feeding energy back into the grid—a crucial feature for reducing the carbon footprint of energy-intensive manufacturing plants.

Figure 3: High-speed servo drive systems with regenerative braking capabilities ensure stable handling of liquid loads.

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Case Scenario: The “Lights-Out” Buffer

Consider a typical scenario in a paper tissue manufacturing plant. The product is voluminous but lightweight, and demand fluctuates seasonally. Previously, the plant leased external warehouses to store peak inventory, incurring double handling costs and transport fees.

By implementing a starack-Standard Double Deep system directly connected to the palletizers via conveyor, the plant internalized its storage. The system operates in a “Dark Warehouse” (lights-out) environment. AGVs (Automated Guided Vehicles) interface directly with the AS/RS system input. The result is a seamless flow from production to storage without a single human touch, reducing product damage (tearing of packaging) to near zero and ensuring 99.99% inventory accuracy.

Figure 4: Integration with conveyor systems allows for direct induction from production lines, eliminating manual forklift transport.

Frequently Asked Questions

1. Can the system handle mixed pallets or different pallet sizes commonly found in retail distribution?
Yes. While standard AS/RS works best with uniform loads, starack systems can be equipped with slave pallets or specialized telescopic forks to handle various dimensions (e.g., Euro pallets vs. CHEP pallets) within the same aisle, provided the system is configured for the largest footprint during the design phase.

2. How does the system prevent product spoilage for food items?
The system is integrated with your ERP/WMS. We configure strictly enforced FIFO (First-In, First-Out) or FEFO (First-Expired, First-Out) logic. The crane will always retrieve the oldest valid batch for shipment, preventing the “buried stock” issue common in floor stacking.

3. Is this solution viable for frozen food storage?
Absolutely. The starack system operates efficiently in temperatures down to -30°C. In fact, high-density automation is preferred in cold chains because it minimizes the volume of air that needs to be cooled (reducing energy bills) and eliminates the need for workers to operate in harsh freezer environments.

4. What happens if a stacker crane breaks down during a peak shift?
Reliability is paramount. We use high-grade Q355 steel and redundant sensors to minimize mechanical failure. However, for critical operations, we design aisles with maintenance bays that allow a crane to be serviced while adjacent aisles continue to support throughput, ensuring no single point of failure stops the entire warehouse.

5. Can we retrofit an AS/RS into our existing warehouse building?
It depends on the height. Standard warehouses often have low ceilings (8-10m), which limits the ROI of a vertical crane system. In these cases, we often recommend the starack-Shuttle system for high-density deep-lane storage to maximize the existing floor area, or we explore a Rack Clad extension adjacent to the existing facility.