The 4 Cavity Cartridge Bottle Mould is a classic model that balances capacity and flexibility. The mould cavities adopt a modular design, and the cavity inserts can be quickly replaced to realize the molding switch of cartridge bottles of different capacities. The main body of the mould is made of P20S mould steel, which has excellent toughness and rigidity after quenching and tempering, and can withstand long-term high-frequency mould opening and closing operations. The cooling water channel adopts a 3D streamlined design, fitting the contour of the bottle cavity, cooling more evenly, and effectively solving the problem of uneven shrinkage of the cartridge bottle after molding. TIn addition, the mould has a compact structure, occupies little space on the injection molding machine, is convenient for installation and commissioning, and has a short commissioning cycle.