A new automatic back pressure adjusting system of unloading valve of slide for the purpose of protection of die to meet requirements of adjusting back pressure value of press slide.

• 为了更有效地保护模具,达到满足用户对压力机滑块背压值进行调整的要求,开发设计了一种新型的现代化的滑块卸荷阀背压自动调节系统。