采用伸缩套简式油缸。手撤泵用双泵结构。                                                             技术参数：
                                                            1、最大起道吨位10T      
                                                            2、最大起道高度120毫米 
                                                            3、往复一次升程10毫米   
                                                            4、油缸直径50毫米
                                                            5、柱塞泵数量双泵       
                                                            6、柱塞泵直径x行程50mm
                                                            7、安全阀卸荷油压758Kg／cm2
                                                            8、手柄作用力常用20kgf最大43.5kgf