Vibrating Rammer Specifications: Model ZDH30-2 Power (HP) 5 Rotate speed (r/min) 3600 Vibrant frequency(HZ) 78 Exciting Force (KN) 30 Moving speed (cm/s) 25 Impaction depth (cm) 50 Impaction efficiency (m2/h) 330 Exterior size (cm) 130*42*90