They adopt the hydraulic downstroke driving mechanism, and equip with power adjusting devices for gauge with a manual fineadjusting mechanism and a counter displaying the position of the stop.

• 液压式传动，有机动滑块行程调节机构和机动后挡料调节机构，带手动微调器，并有计数器显示数值，在上模上方装有斜楔式精度调整结构，以保证工作加工精度。