卡特 303.5E2

CAT 303.5E2 CR Mini Hydraulic Excavator Specifications 1. Basic Machine Parameters Full Model: CAT 303.5E2 CR Compact Radius Mini Excavator Operating Weight (Air‑con ROPS Cab + 300mm rubber track + standard arm + standard bucket + dozer + 75kg operator): 3723 kgH-CPC Canopy version operating weight: 3539 kgH-CPC Standard Heaped Bucket Capacity (ISO): 0.12 m³ Boom Length: 2500 mm Standard Stick Length: 1400 mm (optional long stick: 1700 mm) Track Shoe Width: 300 mm rubber track (steel track optional) Track Gauge: 1320 mm Overall Undercarriage Full Width: 1620 mm Rear Tail Swing Radius: 890 mm (true compact radius, tail does not exceed track width) Ground Contact Pressure (rubber track cab version): 29 kPa Minimum Ground Clearance: 240 mm Standard Dozer Blade Width: 1620 mm 2. Engine & Power Performance Engine Manufacturer: CATERPILLAR Engine Model: C1.7 Inline 3‑cylinder water‑cooled diesel Displacement: 1.7 L / 1700 cc Net Rated Power (ISO 9249 @ 2200 rpm): 17.5 kW (23.5 HP) Gross Power (ISO 14396): 18.5 kW (24.8 HP) Max Torque: 92 N·m @ 1400 rpm Fuel Tank Capacity: 70 L Hydraulic Oil Tank Volume: 34 L Engine Lubricating Oil Volume: 4.2 L Travel Speed: Low 2.6 km/h / High 4.3 km/h Swing Speed: 9.8 rpm Gradeability: 58% (30°) Max Bucket Digging Force: 33.0 kN Max Standard Stick Crowd Force: 18.9 kN Max Drawbar Traction Force: 32.5 kN 3. Hydraulic System (HDH High Definition Load‑Sensing) Main Pump: Single variable displacement axial piston pump Total pump maximum flow: 100 L/min Main circuit relief pressure: 24.5 MPa (245 bar) Swing circuit relief pressure: 21.6 MPa Primary auxiliary hydraulic max flow: 60 L/min Secondary auxiliary hydraulic max flow: 25 L/min Factory pre‑installed proportional auxiliary piping for breaker, auger, thumb grab Standard Functions: Straight‑line travel, ISO / SAE control pattern switch, boom float, auto two‑speed travel, auto engine idle, 3 working modes (Standard / Eco / Fine) 4. Full Working Range Dimensions (mm, standard arm + dozer lowered) Max Horizontal Digging Reach (Ground Level): 5120 Max Digging Depth: 3110 Max Vertical Wall Digging Depth: 2680 Max Digging Height: 4730 Max Dumping Height: 3360 Minimum Swing Radius: 2180 5. Overall Transport Dimensions (mm, standard bucket fitted, dozer installed) Total Transport Length: 4850 Total Transport Width: 1620 Overall Transport Height (cab top): 2380