Get a quote323 Hydraulic Excavator
High Performance with Speed and Efficiency
More Comfort – More Performance – More Versatility
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Up To 20% Less Fuel Consumption
A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.
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Up To 25% Lower Maintenance Costs
Extended and more synchronized maintenance intervals increase uptime and reduce costs compared to the previous model.
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Up To 45% More Operating Efficiency
Offering the industry’s highest level of standard factory-equipped technology, including Cat Grade with 2D, Grade with Assist and Payload.
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Up To 22% Less CO2 Emissions
The 323 emits up to 22% less CO2 than the previous 323F.
Engine
| Biodiesel Capability | Up to B20¹ |
| Bore | 4 in |
| Displacement | 428 in³ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. |
| Engine Model | Cat C7.1 |
| Engine Power - ISO 14396 | 174 hp |
| Engine Power - ISO 14396 (DIN) | 176 hp (metric) |
| Net Power - ISO 9249 | 172 hp |
| Net Power - ISO 9249 (DIN) | 175 hp (metric) |
| Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
| Stroke | 5 in |
Hydraulic System
| Main System - Maximum Flow | 429 l/min (113 gal/min) |
| Maximum Pressure - Equipment | 5075 psi |
| Maximum Pressure - Swing | 3988 psi |
| Maximum Pressure - Travel | 4974 psi |
Swing Mechanism
| Maximum Swing Torque | 60300 ft·lbf |
| Swing Speed | 11.25 r/min |
Weights
| Note | Long undercarriage, Reach boom, R2.9 (9'6"), Reach stick, Heavy Duty (HD) 1.38 m³ (1.81 yd³) bucket, 790 mm (31") HD triple grouser track shoes and 5,400 kg (11,900 lb) counterweight. |
| Operating Weight | 55100 lb |
Service Refill Capacities
| Cooling System | 6.6 gal (US) |
| DEF Tank | 10.8 gal (US) |
| Engine Oil | 6.6 gal (US) |
| Final Drive - Each | 1.3 gal (US) |
| Fuel Tank Capacity | 86.6 gal (US) |
| Hydraulic System - Including Tank | 61.8 gal (US) |
| Hydraulic Tank | 30.4 gal (US) |
| Swing Drive - Each | 1.6 gal (US) |
Dimensions
| Boom | Reach 5.7 m (18'8") |
| Bucket | HD 1.30 m³ (1.71 yd³) |
| Counterweight Clearance | 3.4 ft |
| Ground Clearance | 1.5 ft |
| Handrail Height | 9.7 ft |
| Length to Center of Rollers | 12 ft |
| Shipping Height - Top of Cab | 9.7 ft |
| Shipping Length | 31.3 ft |
| Stick | Reach 2.9 m (9'6") |
| Tail Swing Radius | 9.3 ft |
| Track Gauge | 7.8 ft |
| Track Length | 14.6 ft |
| Transport Width | 10.4 ft |
Working Ranges & Forces
| Boom | Reach 5.7 m (18'8") |
| Bucket | HD 1.30 m³ (1.71 yd³) |
| Bucket Digging Force - ISO | 34308 lbf |
| Maximum Cutting Height | 31 ft |
| Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 21.5 ft |
| Maximum Digging Depth | 22.1 ft |
| Maximum Loading Height | 21.3 ft |
| Maximum Reach at Ground Level | 32.4 ft |
| Maximum Vertical Wall Digging Depth | 18.8 ft |
| Minimum Loading Height | 7.1 ft |
| Stick | Reach 2.9 m (9'6") |
| Stick Digging Force - ISO | 26094 lbf |
Air Conditioning System
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). |
Sustainability
| Recyclability | 98% |
