Development and Function of Hollow Blow Molding Pallets in Storage and Transportation

Hollow blown trays are an ideal choice for applications that require high strength, durability, and long service life. These trays are widely used in the logistics and warehousing industries due to their excellent load-bearing capacity, impact resistance, and ability to withstand heavy usage over time. The development of blow-molded plastic pallets has been driven by advancements in plastic processing technology, making them a popular alternative to traditional wooden or metal pallets. The production of blow molding trays typically involves large hollow molding machines. In China, one of the leading manufacturers uses HDPE (high-density polyethylene) through extrusion blow molding. During the process, a tubular parison is placed into a split mold, and compressed air is introduced after the mold is closed. This causes the parison to expand and adhere to the mold's inner surface, eventually cooling and solidifying into the final product. Modern blow molding equipment is computer-controlled, allowing for precise manufacturing and high-volume production. Some of the largest machines can produce containers up to 2000 liters in volume, showcasing the scalability and efficiency of this method. Currently, domestically developed high-rigidity and high-strength blow molding trays are designed with a Sichuan-shaped structure, making them suitable for use in elevated warehouses, high-rise shelves, and automated production lines. These trays do not require any internal steel reinforcements, offering a safer and more cost-effective solution. They have a high safety factor, with dynamic loads reaching up to 2 tons and static loads exceeding 6 tons. The overhead load capacity of storage shelves can reach 1.5 tons, and the trays can operate stably in temperatures ranging from -40°C to 40°C. With a lifespan of 8–10 years, they provide long-term value and reliability. **Advantages of Blow Molding Trays:** - **Versatile Handling:** These trays are compatible with both mechanical forklifts and manual hydraulic forklifts. Their four-sided fork access makes them ideal for environments where forklifts are the primary handling tool. - **High-Quality Manufacturing:** Made from high molecular weight HDPE resin, blow molding ensures fast and efficient production. The process results in fully formed products with consistent quality and performance. - **Innovative Design:** The unique shape and rational structural design enhance functionality. The grooved surface improves grip and reduces slippage, while the absence of sharp edges or residual material ensures a smooth and safe surface. - **Load Capacity:** Static load: 6–7 tons; Dynamic load: 1–2 tons; Overhead load: 1–1.5 tons. By optimizing structural design and using advanced blow molding techniques, high-strength blow molding trays significantly improve rigidity and strength. This leads to better adaptability in various environments and extends the service life of the product, ultimately reducing overall usage costs. **Environmental and Safety Benefits:** - **Non-toxic and Safe:** Blow molding trays are non-toxic, odorless, and resistant to acids, alkalis, and salts. They are easy to clean and disinfect, making them ideal for food, pharmaceutical, and chemical industries. - **Recyclable and Eco-Friendly:** Waste pallets can be recycled, meeting environmental standards and reducing waste. - **Safe Operation:** These trays are non-conductive, non-flammable, and anti-static. They have no burrs or sharp edges, ensuring the safety of both goods and workers during handling. With continuous improvements in technology and increasing demand in logistics and transportation, blow molding trays are becoming a key player in modern warehousing solutions. Their combination of strength, durability, and eco-friendliness makes them a sustainable and efficient choice for businesses looking to optimize their supply chain operations.

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