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Excavators
320 - Tier 3
Excavators
320 GC - Tier 4 / Stage V
Excavators
323 - Tier 3
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Save this as your preferred unit of measurement clear
Excavators
Selected
320 - Tier 3
320 - Tier 3
Selected
320 - Tier 3
320 - Tier 3
Excavators
320 GC - Tier 4 / Stage V
320 GC - Tier 4 / Stage V
320 GC - Tier 4 / Stage V
320 GC - Tier 4 / Stage V
Excavators
323 - Tier 3
323 - Tier 3
 
Engine
Net Power - ISO 9249
157 HP 117 kW
146 HP 109 kW
157 HP 117 kW
Net Power - ISO 9249 (DIN)
159 hp (metric) 159 hp (metric)
148 hp (metric) 148 hp (metric)
159 hp (metric) 159 hp (metric)
Engine Model
Cat C7.1 Cat C7.1
Cat C4.4 Cat C4.4
Cat C7.1 Cat C7.1
Engine Power - ISO 14396
158 HP 118 kW
148 HP 110 kW
158 HP 118 kW
Engine Power - ISO 14396 (DIN)
160 hp (metric) 160 hp (metric)
150 hp (metric) 150 hp (metric)
160 hp (metric) 160 hp (metric)
Bore
4 in 105 mm
4 in 105 mm
4 in 105 mm
Stroke
5 in 135 mm
5 in 127 mm
5 in 135 mm
Displacement
428 in³ 7.01 l
269 in³ 4.4 l
428 in³ 7.01 l
Biodiesel Capability
Up to B20¹ Up to B20¹
Up to B20¹ Up to B20¹
Up to B20¹ Up to B20¹
Emissions
Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards
Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. 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 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. 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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
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 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. 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 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)
¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. *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. ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. *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.
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. 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.
¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. *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. ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. *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) 429 l/min (113 gal/min)
442 l/min (117 gal/min) 442 l/min (117 gal/min)
429 l/min (113 gal/min) 429 l/min (113 gal/min)
Maximum Pressure - Equipment
5075 psi 35000 kPa
5075 psi 35000 kPa
5075 psi 35000 kPa
Maximum Pressure - Equipment - Lift Mode
5510 psi 38000 kPa
-
-
Maximum Pressure - Travel
4974 psi 34300 kPa
4974 psi 34300 kPa
4974 psi 34300 kPa
Maximum Pressure - Swing
3988 psi 27500 kPa
3625 psi 25000 kPa
3998 psi 27500 kPa
Swing Mechanism
Swing Speed
11.3 r/min 11.3 r/min
11.6 r/min 11.6 r/min
11.25 r/min 11.25 r/min
Maximum Swing Torque
60300 ft·lbf 82 kN·m
54900 ft·lbf 74.4 kN·m
60300 lb/ft 82 kN·m
Weights
Operating Weight
47000 lb 21300 kg
48500 lb 22000 kg
50500 lb 22900 kg
Note
Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight. Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight.
Long undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 700 mm (28 in) triple grouser shoes and 4200 kg (9,300 lb) counterweight. Long undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1 m³ (1.31 yd³) bucket, 700 mm (28 in) triple grouser shoes and 4200 kg (9,300 lb) counterweight.
Long undercarriage, Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, 1.30 m³ (1.70 yd³) HD bucket, 600 mm (24") HD shoes, and 4200 kg (9,260 lb) counterweight. Long undercarriage, Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, 1.30 m³ (1.70 yd³) HD bucket, 600 mm (24") HD shoes, and 4200 kg (9,260 lb) counterweight.
Service Refill Capacities
Fuel Tank Capacity
86.6 gal (US) 345 l
86.6 gal (US) 345 l
86.6 gal (US) 345 l
Cooling System
6.6 gal (US) 25 l
6.6 gal (US) 25 l
6.6 gal (US) 25 l
Engine Oil
6.6 gal (US) 25 l
4 gal (US) 15 l
6.6 gal (US) 25 l
Swing Drive - Each
1.6 gal (US) 6 l
3.2 gal (US) 12 l
3.2 gal (US) 12 l
Final Drive - Each
1.3 gal (US) 5 l
1.1 gal (US) 4 l
1.1 gal (US) 4 l
Hydraulic System - Including Tank
61.8 gal (US) 234 l
61.8 gal (US) 234 l
61.8 gal (US) 234 l
Hydraulic Tank
30.4 gal (US) 115 l
30.4 gal (US) 115 l
30.4 gal (US) 115 l
DEF Tank
-
10.3 gal (US) 39 l
-
Dimensions
Boom
HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Reach 5.7 m (18'8") Reach 5.7 m (18'8")
HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick
HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Reach 2.9 m (9'6") Reach 2.9 m (9'6")
HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Bucket
HD 1.19 m³ (1.56 yd³) HD 1.19 m³ (1.56 yd³)
GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
HD 1.30 m³ (1.70 yd³) HD 1.30 m³ (1.70 yd³)
Shipping Height - Top of Cab
9.7 ft 2960 mm
9.7 ft 2960 mm
9.9 ft 2960 mm
Handrail Height
9.8 ft 2950 mm
9.8 ft 2950 mm
9.8 ft 2950 mm
Shipping Length
31.3 ft 9530 mm
31.3 ft 9530 mm
31.3 ft 9530 mm
Tail Swing Radius
9.3 ft 2830 mm
9.3 ft 2830 mm
9.3 ft 2830 mm
Counterweight Clearance
3.4 ft 1050 mm
3.4 ft 1050 mm
3.4 ft 1050 mm
Ground Clearance
1.5 ft 470 mm
1.5 ft 470 mm
1.7 ft 470 mm
Track Length
14.7 ft 4450 mm
14.7 ft 4450 mm
14.7 ft 4450 mm
Length to Center of Rollers
12 ft 3650 mm
11.11 ft 3650 mm
12 ft 3650 mm
Track Gauge
7.8 ft 2380 mm
7.9 ft 2380 mm
7.8 ft 2380 mm
Transport Width
9.8 ft 2980 mm
10.4 ft 3170 mm
9.9 ft 2980 mm
Working Ranges & Forces
Maximum Digging Depth
22 ft 6720 mm
22 ft 6720 mm
22.1 ft 6730 mm
Boom
HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Reach 5.7 m (18.8) Reach 5.7 m (18.8)
HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick
HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Reach 2.9 m (9'6") Reach 2.9 m (9'6")
HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Bucket
HD 1.19 m³ (1.56 yd³) HD 1.19 m³ (1.56 yd³)
GD 1 m³ (1.31 yd³) GD 1 m³ (1.31 yd³)
HD 1.30 m³ (1.70 yd³) HD 1.30 m³ (1.70 yd³)
Maximum Reach at Ground Level
32.3 ft 9860 mm
32.3 ft 9860 mm
32.4 ft 9870 mm
Maximum Cutting Height
30.7 ft 9370 mm
31 ft 9450 mm
31 ft 9450 mm
Maximum Loading Height
21.3 ft 6490 mm
21.3 ft 6490 mm
21.3 ft 6480 mm
Minimum Loading Height
7.1 ft 2170 mm
7.1 ft 2170 mm
7.1 ft 2160 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
21.5 ft 6550 mm
21.6 ft 6550 mm
21.6 ft 6560 mm
Maximum Vertical Wall Digging Depth
17 ft 5190 mm
18.7 ft 5690 mm
18.5 ft 5620 mm
Bucket Digging Force - ISO
33811 lbf 150 kN
28935 lbf 129 kN
31505 lbf 140 kN
Stick Digging Force - ISO
23911 ft·lbf 106 kN
22281 lbf 99 kN
23962 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). 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).
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Sustainability
Recyclability
-
97% 97%
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Price listed is Manufacturer's Suggested Retail Price, this price does not include shipping and handling, expedite charges, taxes, dealer installation costs or other dealer charges. Dealers set actual prices, including invoicing currency. The MSRP displayed is for the region selected.