SUITABLE EXCAVATOR 4:7t WORKING WEIGHT 3000kg STEEL DIAMETER 680mm OIL SUPPLY 40:70 l/min BREAKER WORKING PRESSURE 108:137 bar RELIEF PRESSURE SETTING 167 bar BACK PRESSURE AT THE BREAKER 10 bar BLOW ENERGY (max) 444 joule INPUT POWER (max) 0,45 kw IMPACT RATIO 500:900 n/min