The parameters caculating,the schematic dia-gram of the hydraulic system,the CAD of hydraulic integrat-ed package of Model4KJ precision hydraulic-pneumatic bar shearing machine have been introduced.

• 介绍了4kJ液气棒料精密剪切机液压系统参数设计、原理图绘制、液压集成块CAD设计的原理和方法。