斗山 DH 220

Overall machine weight: 21,400 kg Standard bucket capacity: 0.5 – 1.18 m³ (commonly 1.0 – 1.18 m³) Lift arm length: 5,700 mm Bucket arm length: 2,900 mm Origin: Yantai, Shandong Province II. Performance Parameters Rotation speed: 12.1 rpm Travel speed: 3.1 (low) – 5.4 (high) km/h Climbing ability: 70% (≈ 35°) Bucket digging force: 136.2 kN (standard) / 144.1 kN (boosted) Bucket arm digging force: 100 kN (standard) / 104.9 kN (boosted) Ground contact pressure: ≈ 46 kPa Minimum ground clearance: 480 mm III. Engine Model: Doosan DB58TI / DB58TIS (6-cylinder water-cooled direct injection) Rated power: 108 kW / 2,000 rpm Cylinder diameter × stroke: 111 × 139 mm Displacement: 8.07 L IV. Hydraulic System Main pump: Variable piston pump × 2 Main pump flow: 2 × 212 L/min Working pressure: 32.5 MPa (standard) / 34.3 MPa (boosted) Pilot pressure: 3.5 MPa