我厂自行设计和制造的Z81—250型多工位自动压力机于1971年试制成功(见图1)。主要技术规格公称压力(在下死点前6.6毫米)250吨;工位数 9个;各工位间距 300毫米;滑块行程次数 20～25次/分;最大封闭高度 600毫米;滑块行程长度 200毫米;封闭高度调节量 80毫米;打料杆行程 30毫米;垫板厚度 110毫米;夹板最小张开距离 450毫米;夹板最大张开距离 450毫米;工作台到夹板间距 320毫米;辊式送料最大送进长度 200毫米;工作台到辊式送料送进线间距400毫米;离合器空气压力 4公斤/厘米~2;电动机功率 30瓩;压力机总重 46.3吨;该机在一次行程中可完成多种工序加工,是一种高效自动压力机。遵照毛主席关于 Z81-250 multi-station automatic press designed and manufactured by our factory was trial-produced in 1971 (see Figure 1). The main technical specifications Nominal pressure (6.6 mm before the bottom dead center) 250 tons; Number of stations 9; The station spacing 300 mm; Slider stroke 20 to 25 times / min; The maximum closure height of 600 mm; Slider stroke length 200 mm; closed height adjustment of 80 mm; shot lever stroke 30 mm; plate thickness of 110 mm; splint minimum opening distance of 450 mm; splint maximum opening distance of 450 mm; table to splint spacing 320 mm; The maximum feed length of 200 mm; table to the roller feed feed line spacing 400 mm; clutch air pressure 4 kg / cm ~ 2; motor power 30 瓩; press total weight 46.3 tons; aircraft in a trip can be completed A variety of processes, is a highly efficient automatic press. Follow Chairman Mao’s statement