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江苏省第一建筑工程公司加工厂的同志坚决贯彻毛主席提出的关于“独立自主、自力更生”的伟大方针,经过多次反复实践,不断改进,试制成功了轻型粗钢筋预应力张拉机。这种张拉机结构简单,制造方便,使用灵活,同高压油泵与拉伸机配合的张拉设备相此,工效提高50～100%,同时还可提高转运机构和连接螺杆的装卸速度,减轻劳动强度,为土机具生产高质量的预应力钢筋混凝土构件开辟了新的途径。
The comrades from the processing plant of the First Construction Engineering Company of Jiangsu Province resolutely followed Chairman Mao’s great principles of “independent, self-reliant”. After repeated practice and continuous improvement, the trial successfully produced a lightweight coarse steel prestressing machine. This tensioning machine has a simple structure, is easy to manufacture, and is flexible in use. Compared with a tensioning device equipped with a high-pressure oil pump and a stretching machine, the work efficiency is improved by 50 to 100%, and the loading and unloading speed of the transfer mechanism and the connecting screw can be improved, and the tension can be reduced. The labor intensity opens up new ways for the production of high-quality prestressed reinforced concrete components for soil tools.