The characteristics of plastic pallets in cold storage
Source: kuda 2025-10-16
The core characteristic of plastic pallets in cold storage is mainly reflected in their material's cold resistance. Unlike ordinary environments, low-temperature environments can significantly affect the physical properties of plastics. Therefore, trays specifically designed for cold chain scenarios typically use materials with strong low-temperature resistance, such as high-density polyethylene (HDPE) or polycarbonate (PC). These materials can maintain the flexibility of their molecular chains at temperatures of -25 ℃ or even lower, avoiding the risk of fracture caused by increased brittleness. For example, HDPE pallets only show slight deformation in low-temperature stacking tests, while ordinary polypropylene (PP) pallets may exhibit significant cracks. In addition, some high-end products will further enhance their low-temperature stability by adding antifreeze modifiers, ensuring that they are not easily deformed or damaged during cold storage handling and stacking.
In addition to the cold resistance of the material itself, the structural design of plastic pallets in cold storage has also been optimized for low-temperature environments. Its surface is usually designed with anti slip patterns or grids, which can prevent the goods from sliding due to surface icing at low temperatures and reduce the accumulation of static electricity on the contact surface between the pallet and the goods. The bottom support structure often adopts a Sichuan or Tian shaped layout, which disperses the bearing pressure through reinforcement design to avoid fracture caused by local stress concentration at low temperatures. Some pallets will also reserve lifting holes or embed RFID tags to meet the intelligent management needs of automated cold storage. These design details together ensure the reliability and adaptability of the pallet in the complex environment of the cold storage.
The hygiene and safety characteristics of plastic pallets in cold storage are important advantages that distinguish them from traditional wooden pallets. Plastic materials themselves have the characteristics of not absorbing water and not breeding microorganisms, which can effectively avoid common bacterial and fungal contamination problems in cold chain environments. This trait is particularly important for goods with strict hygiene requirements such as food and medicine, significantly reducing the risk of deterioration due to pallet contamination. In addition, the surface of plastic pallets is smooth and free of burrs, and will not produce debris or wood spikes like wooden pallets, which not only protects the integrity of the goods packaging, but also reduces the difficulty of cleaning and maintenance. In terms of safety, the plastic tray avoids the risk of corrosion of metal parts through integral injection molding, and its anti-static design can also prevent electrostatic sparks that may occur in dry and low-temperature environments, further ensuring the safety of cold storage operations. These characteristics together constitute the core competitiveness of cold storage plastic pallets in the fields of hygiene and safety.
The economic advantage of plastic pallets in cold storage mainly lies in their long-term usage cost. Although the initial procurement cost of plastic pallets may be higher than that of wooden pallets, their long service life and extremely low maintenance requirements significantly reduce their overall cost.
2025-10-16
