Engine model: EH12 4.0HP Rotating speed: 4,300rpm Impacting force: 14.6kN Maximum battering frequency: 680 times/minute Efficiency: 260m2/hour Impacting stroke: 55mm Impacting plate size: 330 x 280mm Overall size: 700 x 380 x 1,060mm Shipping size: 780 x 420 x 1,160mm Operating weight: 78kg Shipping weight: 85kg