... one time4. Full hydraulic operation: hydraulic operation is applied on digging arm, machine moving, braking, convey frame lifting and falling.5. Safe ... and equipment safe.7. SW60A adopts retractable type digging arm, make more big digging scope.8. SWR60A adopts hydraulic pilot operation, very ... motorElectric motor17Machine weight (kg)2100220038004500 Crawler-mounted bucket digging machine