Food insulation point in recent years has only begun to be various food-related professional companies pay attention to, general food harmful substances easy to the breeding point is about 10-65 degrees range, so control insulation general refrigeration at 10 degrees below or thermal insulation 66 degrees above.
Injection molding cooler: using the injection molding method, make the inner lining and outer wall, filled with ESP foam inside, the primary feature is a good insulation effect, more solid, and can be used for a long time. The general production of raw materials for the outer material for PP, and the inner material for PE or PP. insulation layer for EPS.
The cost is low and there are many types. Because the thin wall can not install a very tight locking, its sealing effect is ordinary.
Rotomolding: Rotomolding is a relatively new type of plastic molding technology, where the mold is rotated on a rotomolding machine, and the plastic particles are ablated with an oven or fire, and then cooled and shaped. It is called rotomolding because it requires constant rotation of the rotomolding machine. Rotomoulding is a special process because
A mold can only produce a dozen products in 24 hours, so rotomolding has a long production cycle and the number of molds needs to be increased to complete the batch production. However, rotomolding molds are cheaper than injection molding.
Suitable for small quantities of custom processing. The wall thickness of rotomoulded coolers can reach 5-10MM, and is characterized by thicker walls where there is corner molding, which can form a solid surface. Rotomoulding products can be produced as small as a small water tank or as large as the walls of a simple house. The raw material used for roto molding is LLDPE, which has good toughness and is resistant to low temperatures. Rotomoulded coolers naturally constitute an empty inner cavity, suitable for filling with insulation materials, now generally filled with PU foam.
Rotomolded coolers can directly touch the food, the structure is solid and durable, can be assured of stacking multiple layers, and good load-bearing. It is suitable for trucks, more than one person, long time frequent use of food refrigeration insulation transport.
As the trend of fresh e-commerce, fishery fishing, and pharmaceutical logistics continue to develop, the use of cooler will become more and more widespread, and the market prospects will become better and better.
