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兖州煤机厂研制生产的SJ-44 A型双向伸缩带式输送机是一种利用下层回程皮带运送物料的新型双运输皮带机,它是在SJ—44型伸缩带式输送机的基础上,增加下皮带装、卸料装置设计而成,其优点是:一机多用,设计先进,结构合理,操作方便,运输平稳、安全可靠。双向输送机被用作煤、岩巷的掘进配套
Yanzhou Coal Plant developed SJ-44 A-type two-way telescopic belt conveyor is a use of the lower return belt transport materials, new dual transport belt machine, which is in the SJ-44-based telescopic belt conveyor, Increased under the belt loading, unloading device designed, its advantages are: a multi-purpose machine, advanced design, reasonable structure, easy operation, stable transportation, safe and reliable. Two-way conveyor is used as coal, rock tunnel supporting