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

Hollow blow-molded trays are ideal for high-load applications, offering excellent durability and long-term performance. These trays have gained significant popularity in the plastic pallet industry due to their high load-bearing capacity, impact resistance, and extended service life. The growing importance of warehousing and logistics across various industries has driven the development of advanced plastic processing techniques, leading to the rise of blow-molded products. Blow molding equipment typically requires large-scale hollow molding machines, which have been continuously improved in China. The country's largest manufacturer of blow-molded trays utilizes HDPE (high-density polyethylene) through extrusion blow molding technology. During production, a tubular plastic parison is placed into a split mold, and compressed air is injected immediately after the mold closes. This causes the parison to expand and adhere to the mold’s inner surface, then cool and solidify to form the final product. Modern blow molding machines can now produce containers with volumes up to several thousand liters, with some large-scale models reaching 2000L. These machines are computer-controlled, ensuring precision and consistency in production. Currently, blow-molded trays made from HDPE are considered the highest quality among plastic pallets due to their superior material properties. Domestically developed high-rigidity and high-strength blow-molded trays use a conventional Sichuan-shaped structure, making them suitable for elevated warehouses, high-rise shelves, and automated production lines. These trays do not require internal steel reinforcement, offering a high safety factor. Their dynamic load capacity reaches 2 tons or more, static load up to 6 tons or more, and overhead shelf loads can support 1.5 tons. They operate stably in temperatures ranging from -40°C to 40°C and have a service life of 8 to 10 years. **Advantages of Blow-Molded Trays:** - **Versatile Handling:** These trays can be efficiently handled using mechanical forklifts or manual hydraulic forklifts. Their four-sided fork design allows seamless operation in environments where forklifts are always available. - **High-Quality Manufacturing:** Made from high molecular weight HDPE resin, blow-molded trays undergo a single-step blow molding process that ensures fast and complete formation, resulting in stable internal quality and performance. - **Innovative Design:** The unique shape and rational structural design provide excellent slip resistance, with no residual material at corners, enhancing both aesthetics and functionality. - **Load Capacity:** Static load ranges from 6 to 7 tons, dynamic load from 1 to 2 tons, and overhead load from 1 to 1.5 tons, making them highly versatile for industrial use. **Cost-Efficient Performance:** By optimizing structural design and employing specialized blow molding techniques, these trays significantly enhance rigidity and strength, allowing for a flat surface that improves adaptability and extends service life. This leads to substantial cost savings in long-term usage. **Environmentally Friendly:** Blow-molded trays are non-toxic, odorless, resistant to acids, alkalis, and salts, and easy to clean and disinfect. They are also non-corrosive and fully recyclable, meeting modern environmental standards. **Safe Operation:** These trays are non-flammable, non-electric, and static-free, with a non-slip surface and no burrs or sharp edges. They do not require additional connections, ensuring the safety of both goods and workers during handling. The continuous development of blow-molded trays in warehousing and transportation highlights their growing role in improving efficiency, safety, and sustainability in logistics operations. As technology advances, their application is expected to expand further across global supply chains. http://pengcn.qianyan.biz/ http://news.chinawj.com.cn

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