The first: injection molding method.
Plastic pallets produced by injection molding methods are flat, smooth, stiff, and dense, and have a greater degree of freedom in product design. There are two types of double-sided integral plastic pallets and double-sided assembled plastic pallets.
The general product weight of double-sided integral pallets is more than 15 kg/piece, and the shape is more complicated. And it needs to be an injection molding machine with a clamping force of more than 2500 tons. The integral plastic pallet has fewer production processes, higher production efficiency, and good product quality. However, the shape of this pallet is complicated, the investment is large, and the cost is relatively high. Generally, plastic processing plants do not use this method.
The double-sided assembled pallet is to divide the double-sided integral pallet into two upper and lower parts, which are respectively assembled after injection molding. Although this product requires 2 sets of molds, the mold structure is greatly reduced, and the total mold investment is still cheaper than the overall pallet cost. At the same time, it also reduces the requirements for the clamping force of the equipment. The clamping force is ≥1500 tons, which is relatively easy for general plastic processing plants. This production process may become the mainstream of plastic pallet production.
The third type: vacuum blister molding method.
There are also single-sided and double-sided plastic pallets produced by vacuum forming. Single-sided blister pallets are mostly used for the packaging and transportation of small motors (such as vacuum cleaner motors, power tool motors, etc.) and wire reels. They have developed rapidly and are mainly dedicated to their work. There are two types of double-sided blister pallets: the upper part is extruded fixed-length and fixed-width plastic sheets, the lower part is a large-scale vacuum blister product; the upper and lower halves are both large-scale vacuum blister products. This method requires large-scale vacuum equipment for production and molding, and the equipment cost is low, and the mold cost is relatively low, but the product wall thickness is uneven.
