- Category: Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 323 ➔
The Caterpillar 323 is a hydraulic excavator in Caterpillar's medium-size excavator range, designed for general earthmoving, trenching, site preparation, and material handling. It is commonly used in construction, utility, roadwork, and quarry applications. The 323 typically features a fuel-efficient diesel engine, advanced hydraulic controls, and compatibility with a range of buckets and work tools. Caterpillar offers the model with operator-focused cab features, machine monitoring systems, and service access designed to support productivity and maintenance. Exact specifications, operating weight, digging depth, and engine output vary by configuration, year, and regional market.
General Specifications
| Digging Depth ft (m) | 22.1 (6.73)
Starting 2025 Model Year |
| Digging Reach ft. (m) | 32.4 (9.87)
Starting 2025 Model Year |
| Engine | C7.1e TA
Starting 2021 Model Year |
| Engine hp (kW) | 172 (128.5)
Starting 2025 Model Year |
| Max Digging Depth | 22.1 ft ft (6.74 m)
Starting 2023 Model Year |
| Net Power | 172.00 hp (128.26 kw)
Starting 2023 Model Year |
| Operating Weight | 54,900.00 lbs (24,902.25 kg)
Starting 2023 Model Year |
| Operating Weight lbs (kg) | 55,100 (25,000)
Starting 2025 Model Year |
Air Conditioning System
| Air Conditioning | Contains R134a refrigerant (0.85 kg, CO2 equivalent of 1.216 metric tonnes)
Starting 2025 Model Year |
Boom/Stick Excavator Option 1
| Max Digging Depth | 22.00 ft (6.71 m)
|
| Max Reach Along Ground | 32.10 ft (9.78 m)
|
Dimensions
| Boom | Reach 5.7 m
Starting 2025 Model Year |
| Bucket | HD 1.30 m³
Starting 2025 Model Year |
| Counterweight Clearance | 3.40 ft (1.04 m)
Starting 2025 Model Year |
| Ground Clearance | 1.50 ft (0.46 m)
Starting 2025 Model Year |
| Handrail Height | 9.70 ft (2.96 m)
Starting 2025 Model Year |
| Length to Center of Rollers | 12.00 ft (3.66 m)
Starting 2025 Model Year |
| Shipping Height - Top of Cab | 9.70 ft (2.96 m)
Starting 2025 Model Year |
| Shipping Length | 31.30 ft (9.54 m)
Starting 2025 Model Year |
| Stick | Reach 2.9 m
Starting 2025 Model Year |
| Tail Swing Radius | 9.30 ft (2.83 m)
Starting 2025 Model Year |
| Track Gauge | 7.80 ft (2.38 m)
Starting 2025 Model Year |
| Track Length | 14.60 ft (4.45 m)
Starting 2025 Model Year |
| Transport Width | 10.40 ft (3.17 m)
Starting 2025 Model Year |
Engine
| Biodiesel Capability | Up to B20¹
Starting 2025 Model Year |
| Bore | 4.00 in (10.16 cm)
Starting 2025 Model Year |
| Displacement | 428 in³
Starting 2025 Model Year |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Starting 2025 Model Year |
| Engine Model | Cat C7.1
Starting 2025 Model Year |
| Engine Power - ISO 14396 (DIN) | 176.00 hp (131.25 kw)
Starting 2025 Model Year |
| Engine Power - ISO 14396: 2002 | 174.00 hp (129.75 kw)
Starting 2025 Model Year |
| Net Power | 162.00 hp (120.81 kw)
|
| Net Power - ISO 9249 | 172.00 hp (128.26 kw)
Starting 2025 Model Year |
| Net Power - ISO 9249 (DIN) | 175.00 hp (130.50 kw)
Starting 2025 Model Year |
| Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped...
Starting 2025 Model Year |
| Note (2) | ¹Cat diesel engines are required to use ULSD or ULSD blended with lower-carbon intensity fuels.
Starting 2025 Model Year |
| Stroke | 5.00 in (12.70 cm)
Starting 2025 Model Year |
Hydraulic System
| Main System - Maximum Flow | 113 gal/min
Starting 2025 Model Year |
| Maximum Pressure - Equipment | 5075 psi
Starting 2025 Model Year |
| Maximum Pressure - Swing | 3988 psi
Starting 2025 Model Year |
| Maximum Pressure - Travel | 4974 psi
Starting 2025 Model Year |
Operating Specifications
| Operating Weight | 56,200.00 lbs (25,491.92 kg)
|
Service Refill Capacities
| Cooling System | 6.60 gal (24.98 l)
Starting 2025 Model Year |
| DEF Tank | 10.80 gal (40.88 l)
Starting 2025 Model Year |
| Engine Oil | 6.60 gal (24.98 l)
Starting 2025 Model Year |
| Final Drive - Each | 1.30 gal (4.92 l)
Starting 2025 Model Year |
| Fuel Tank Capacity | 86.60 gal (327.78 l)
Starting 2025 Model Year |
| Hydraulic System - Including Tank | 61.80 gal (233.91 l)
Starting 2025 Model Year |
| Hydraulic Tank | 30.40 gal (115.06 l)
Starting 2025 Model Year |
| Swing Drive - Each | 1.60 gal (6.06 l)
Starting 2025 Model Year |
Sustainability
| Recyclability | 97 %
Starting 2025 Model Year |
Swing Mechanism
| Maximum Swing Torque | 60300 lbf·ft
Starting 2025 Model Year |
| Note (1) | For CE-marked machine default value may be set lower.
Starting 2025 Model Year |
| Swing Speed | 11.25 r/min
Starting 2025 Model Year |
Weights
| Note | Long undercarriage, Reach boom, R2.9 (9'6"), Reach stick, HD 1.38 m³ (1.81 yd³) bucket, 790 mm (31") HD triple grouser track shoes and 5,400 kg (11,900 lb) counterweight.
Starting 2025 Model Year |
| Operating Weight | 55100 lb
Starting 2025 Model Year |
Working Ranges and Forces
| Boom | Reach 5.7 m
Starting 2025 Model Year |
| Bucket | HD 1.30 m³
Starting 2025 Model Year |
| Bucket Digging Force - ISO | 34,308.00 lbs ft (46,514.79 nm)
Starting 2025 Model Year |
| Maximum Cutting Height | 31.00 ft (9.45 m)
Starting 2025 Model Year |
| Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 21.50 ft (6.55 m)
Starting 2025 Model Year |
| Maximum Digging Depth | 22.10 ft (6.74 m)
Starting 2025 Model Year |
| Maximum Loading Height | 21.30 ft (6.49 m)
Starting 2025 Model Year |
| Maximum Reach at Ground Level | 32.40 ft (9.88 m)
Starting 2025 Model Year |
| Maximum Vertical Wall Digging Depth | 18.80 ft (5.73 m)
Starting 2025 Model Year |
| Minimum Loading Height | 7.10 ft (2.16 m)
Starting 2025 Model Year |
| Stick | Reach 2.9 m
Starting 2025 Model Year |
| Stick Digging Force - ISO | 26,094.00 lbs ft (35,378.25 nm)
Starting 2025 Model Year |
