TJ-KB1000L-5000L series hollow blow molding machine is a blow molding machine developed for 1000L-5000L civilian barrels, water storage tanks, and septic tanks. The major advantage of this series of blow molding machines is that they can process polymer materials. Ethylene, under the premise of lighter weight than similar products, has higher strength than similar products. This series of hollow blow molding machines can be equipped with 2-5 layers of composite storage die according to the requirements of different products.