Synchronous cylinder special for controlling two oil cylinders to be synchronized

The invention relates to a synchronous cylinder special for controlling two oil cylinders to be synchronized. The synchronous cylinder comprises a cylinder barrel, a piston rod, a first piston, a second piston and a partition block, wherein the partition block is installed in the cylinder barrel; the piston rod is located in the cylinder barrel, and after the piston rod penetrates through the partition block, the top end of the piston rod is provided with the first piston; the second piston is installed in the middle of the piston rod and located on the other side of the partition block; the partition block partitions the cylinder barrel into two chambers of the same volumes, namely the first chamber and the second chamber; one end of the first chamber is connected with the first oil cylinder through a pipeline, and the other end of the first chamber is connected with an oil inlet pipeline through a pipeline; and one end of the second chamber is connected with the second oil cylinder through a pipeline, and the other end of the second chamber is connected with the oil inlet pipeline through a pipeline. The synchronous cylinder has the advantages of being simple in structure and convenient to install and maintain, and occupying a small operation space of a press. Users can use the synchronous cylinder conveniently. Through the synchronous cylinder, control is simplified, the synchronous speed is increased, the failure rate is decreased, and cost is reduced.