Onion Cold Storage Solution
Overview
Custom Onion Cold Storage Solution
Onions are a bulk agricultural product characterized by typical seasonal harvesting, concentrated market supply, and long-term market demand. They require specialized low-temperature storage to preserve their quality. Our customized onion cold storage solution is specifically designed to address the physiological storage characteristics of onions and the operational requirements of low-temperature cold storage facilities. This solution works in tandem with the cold storage facility’s constant temperature and humidity preservation system to specifically address the drawbacks of traditional pile storage. While preserving onion quality, it achieves high space utilization and enables standardized, precise management, helping you reduce operating costs and increase profits.
Using Stacking Racks for Onion Cold Storage
High-density storage is a key requirement for onion cold storage. We use stacking racks to store onions, which offer the following advantages:
Ensure complete coverage of the cargo by cold air
When onions are stored in loose piles, they come into contact with the floor, resulting in poor ventilation. Using stacking racks to store onions creates sufficient spacing to allow cold air to circulate, helping you prevent sprouting, rot, and spoilage.



Reducing Stacking Pressure
In our onion cold storage system, we employ a modular design for tiered storage, using steel columns to support the weight of the onions. This helps prevent issues such as crushing, cracking, skin peeling, and flesh damage caused by excessive stacking height, thereby maximizing the preservation of the onions’ appearance and texture.
Utilizing Vertical Space for High-Density Storage
Each rack is an independent unit capable of supporting 1,000–1,500 kg. Within the warehouse, these units can be stacked up to four levels high, minimizing aisle space and fully utilizing the upper storage areas. A 500-square-meter warehouse can accommodate 1,000 stacking racks, storing up to 1,000 metric tons of onions, enabling high-density onion cold storage.
Improving Operational Efficiency
This onion cold storage solution is designed for quick storage and retrieval using forklifts.
Each unit can be moved with a forklift, which significantly reduces handling time during bulk storage or retrieval—the task can be completed by just 1–2 people, thereby lowering labor costs.
High Container Loading Capacity
In this onion cold storage solution, a single container can hold 300 stacking racks, helping you reduce ocean freight costs.
No Installation Required
Once the stacking racks arrive, there is no need to build a foundation or use bolts for assembly. A single person can put them into use simply by inserting the uprights into the bottom pallet, saving you time and labor costs. The stacking racks do not need to be anchored to the floor; they can be moved as needed and arranged flexibly.
High Compatibility
The stacking racks used in this onion cold storage solution are designed for cold storage environments and support the storage of onions in mesh bags, cardboard boxes, and loose on pallets. They also support high-density storage of other cold storage products, offering excellent adaptability.
Watch & Learn
Why Choose Our Onion Cold Storage Solutions
With over 15 years of experience in designing cold storage solutions, SDREX offers free customization of high-density storage solutions based on your cold storage layout, cargo type, and operational needs. From design to manufacturing, every product undergoes rigorous quality inspections to ensure that each unit is safe, durable, and capable of stable load-bearing capacity. Our solutions help you maximize space utilization, reduce operating costs, and achieve efficient onion cold storage.
Highlights
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