Battery Powered Vertical Rail Tamper The Battery Powered Vertical Rail Tamper is used for tamping and compacting the ballast to effectively correct track level errors. Specification Model LJ-LZD2101 Type Rail Tamper Material Stainless Steel Dimensions (L x W x H) (mm) 1050* 345 *450mm Rated capacity of the power battery pack 24Ah Weight 18 Kg (including 1.2kg spike) Excitation force 4,100N Tamper Pick amplitude 1.6 mm Vibration frequency 136HZ Intelligent power display Display battery time and power Waterproof grade IP45 Total weight 18 Kg (including spike but not battery pack)