LLN-25 / 2 two working-layer inner tube hydraulic curing press vulcanization process according to the characteristics of the plunger lifting mechanism with the hydraulic system, a hydraulic control of six inner tube curing press. Increased clamping (clamping) force, hot plate installed by T-slot for the installation of a variety of molds, machine running solid and stable , low noise, lessl consumable parts, electrical parts used linkage, manual, single swap System and PLC control system, simple, safe, reliable, reasonable and piping arrangements, condensate auto emissions and other devices.