The hydraulic foundry splitter can quickly separate the gating and riser from the casting. This greatly improves the efficiency and quality of post cleaning work, avoids secondary damage to the casting, and reduces the production cost of the casting. Unskilled workers can easily learn to use it in a short time and work continuously, which not only reduces the labor intensity of workers, but also improves the working environment. It replace traditional separation methods such as hammering and toothless saw cutting.