323 Hydraulic Excavator
The Cat® 323 delivers power, speed, and high production performance. With more standard technology than previous models, plus reduced fuel and maintenance costs, the Cat 323 has all you need to take your business to the next level.
Specifications
Equipment
Product Brochures
Attachments
Units:
Engine
Net Power - ISO 9249
172 hp
128.5 kW
Net Power - ISO 9249 (DIN)
175 hp (metric)
175 hp (metric)
Engine Model
Cat C7.1
Engine Power - ISO 14396
174 hp
129.4 kW
Engine Power - ISO 14396 (DIN)
176 hp (metric)
176 hp (metric)
Bore
4 in
105 mm
Stroke
5 in
135 mm
Displacement
428 in³
7.01 l
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
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.
Hydraulic System
Main System - Maximum Flow
429 l/min (113 gal/min)
Maximum Pressure - Equipment
5075 psi
35000 kPa
Maximum Pressure - Travel
4974 psi
34300 kPa
Maximum Pressure - Swing
3988 psi
27500 kPa
Swing Mechanism
Swing Speed
11.25 r/min
11.25 r/min
Maximum Swing Torque
60300 ft·lbf
82 kN·m
Weights
Operating Weight
55100 lb
25000 kg
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.
Service Refill Capacities
Fuel Tank Capacity
86.6 gal (US)
345 l
Cooling System
6.6 gal (US)
25 l
Engine Oil
6.6 gal (US)
25 l
Swing Drive - Each
1.6 gal (US)
6 l
Final Drive - Each
1.3 gal (US)
5 l
Hydraulic System - Including Tank
61.8 gal (US)
234 l
Hydraulic Tank
30.4 gal (US)
115 l
DEF Tank
10.8 gal (US)
41 l
Dimensions
Boom
Reach 5.7 m (18'8")
Stick
Reach 2.9 m (9'6")
Bucket
HD 1.30 m³ (1.71 yd³)
Shipping Height - Top of Cab
9.7 ft
2960 mm
Handrail Height
9.7 ft
2950 mm
Shipping Length
31.3 ft
9530 mm
Tail Swing Radius
9.3 ft
2830 mm
Counterweight Clearance
3.4 ft
1050 mm
Ground Clearance
1.5 ft
470 mm
Track Length
14.6 ft
4450 mm
Length to Center of Rollers
12 ft
3650 mm
Track Gauge
7.8 ft
2380 mm
Transport Width
10.4 ft
3170 mm
Working Ranges & Forces
Maximum Digging Depth
22.1 ft
6730 mm
Boom
Reach 5.7 m (18'8")
Stick
Reach 2.9 m (9'6")
Bucket
HD 1.30 m³ (1.71 yd³)
Maximum Reach at Ground Level
32.4 ft
9870 mm
Maximum Cutting Height
31 ft
9450 mm
Maximum Loading Height
21.3 ft
6480 mm
Minimum Loading Height
7.1 ft
2160 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
21.5 ft
6560 mm
Maximum Vertical Wall Digging Depth
18.8 ft
5740 mm
Bucket Digging Force - ISO
34308 lbf
140 kN
Stick Digging Force - ISO
26094 lbf
107 kN
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%
Standard Equipment
NOTE
CAB
CAT TECHNOLOGY
ELECTRICAL SYSTEM
ENGINE
HYDRAULIC SYSTEM
SAFETY AND SECURITY
SERVICE AND MAINTENANCE
UNDERCARRIAGE AND STRUCTURES
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