A tandem press line (10, 10A, 10B, 60) comprising: a first press machine configured to perform punching on a coil strip fed intermittently; a second press machine configured to further perform punching on the coil strip fed from the first press machine, in synchronization with the first press machine; and an intermediate feeding device (37, 50, 50A, 50B) provided between the first press machine and the second press machine, the intermediate feeding device (37, 50, 50A, 50B) being configured to grip the coil strip when feeding the coil strip and release the coil strip when performing pressing, wherein the first press machine and the second press machine are provided with a first forming die and a second forming die, respectively, the first forming die and the second forming die being each provided with a material lifter having the same stroke length on a lower die (40a, 41a), characterized in that: the height of a lower dies (40a, 41a) of the first and the second forming dies (40, 41) are the same each other, and a feeding line height of the intermediate feeding device is higher than the upper surface of the lower dies by 1/2 of a lift stroke length h of the material lifter or the lower die upper surface height of the first and the second forming dies (40, 41) are different each other by the stroke length h of the material lifter, and a feeding line height of the intermediate feeding device (37, 50, 50A, 50B) is the same as a higher lower die upper surface height out of the lower die upper surface height of the first forming die and the lower die upper surface height of the second forming die, and a length along the coil strip from the material lifter provided at a rear end of the first forming die to the material lifter provided at a front end of the second forming die is the same before performing the pressing and when performing the pressing. a first press machine configured to perform punching on a coil strip fed intermittently; a second press machine configured to further perform punching on the coil strip fed from the first press machine, in synchronization with the first press machine; and an intermediate feeding device (37, 50, 50A, 50B) provided between the first press machine and the second press machine, the intermediate feeding device (37, 50, 50A, 50B) being configured to grip the coil strip when feeding the coil strip and release the coil strip when performing pressing, wherein the first press machine and the second press machine are provided with a first forming die and a second forming die, respectively, the first forming die and the second forming die being each provided with a material lifter having the same stroke length on a lower die (40a, 41a), the height of a lower dies (40a, 41a) of the first and the second forming dies (40, 41) are the same each other, and a feeding line height of the intermediate feeding device is higher than the upper surface of the lower dies by 1/2 of a lift stroke length h of the material lifter or the lower die upper surface height of the first and the second forming dies (40, 41) are different each other by the stroke length h of the material lifter, and a feeding line height of the intermediate feeding device (37, 50, 50A, 50B) is the same as a higher lower die upper surface height out of the lower die upper surface height of the first forming die and the lower die upper surface height of the second forming die, and a length along the coil strip from the material lifter provided at a rear end of the first forming die to the material lifter provided at a front end of the second forming die is the same before performing the pressing and when performing the pressing.