Cold Storage Radio Shuttle Racking System The RSR-CS-300 is a cold-warehouse-optimized radio shuttle pallet racking system engineered for stable operation in subzero freezer environments down to -30°C . Every component — from the low-temperature-certified structural steel to the cold-rated lithium battery pack and anti-frost coated guide rails — is specifically designed to perform reliably where conventional racking systems fail. Why Cold Warehouses Demand Specialized Racking