该缓冲器由中国矿业大学设计,徐州一机厂制作;于1991年至1992年在板台矿老主井、老副井进行工业性试验。结果证明,TSN-25型缓冲器达到了设计要求,与理论值相符合。在1992年12月通过了原中国统配煤矿总公司教育局组织的专家鉴定。认为该产品达到了国内先进水平。并于1993年3月取得了实用新型专利证书。该缓冲器是作为防过卷缓冲制动的后备 The buffer by the China University of Mining and Design, Xuzhou, a machine factory production; in 1991 to 1992 in the main plateau mine owners, the old vice-well industrial test. The results show that, TSN-25-type buffer has reached the design requirements, in line with the theoretical value. In December 1992, it passed the appraisal of experts organized by the Education Bureau of the former China General Coal Mine Corporation. That the product has reached the advanced level in China. And in March 1993 made a utility model patent certificate. The buffer is used as a back up buffer against over-braking