... wide and heavy screed; tamper swing can multi-classes adjust; rotate speed of tamper and vibrator may be continuously ... ; two longitudinal and one transverse level system; Ultrasonic material level control; imported electric control elements make the system ... productivityt/h800Hopper capacityt14Climb ability%20Double tamper speedr/min0~1500Main tamper swingmm3,5,7,9Vice tamper swingmm0,3,6,9,12Level ...