The paper introduces the technical characteristics and satisfying service result of ZZS6000/17/37 chock-shield with four propes designed for high-capacity and high-efficiency mining face.

• 本文介绍了大同煤矿集团公司为适应高产高效工作面开采面自行设计的ZZS6000/17/37型四柱支撑掩护式液压支架的技术特征及其良好的使用效果。