Excavators

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320 - Tier 3
UNITS:
Metric
Imperial
Net Power - ISO 9249
117 kW
157 HP
 
107 kW
143 HP
 
128.5 kW
172 HP
Net Power - ISO 9249 (DIN)
159 hp (metric)
159 hp (metric)
 
-
 
175 hp (metric)
175 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
118 kW
158 HP
 
-
 
129.4 kW
174 HP
Engine Power - ISO 14396 (DIN)
160 hp (metric)
160 hp (metric)
 
-
 
176 hp (metric)
176 hp (metric)
Bore
105 mm
4 in
 
105 mm
4 in
 
105 mm
4 in
Stroke
135 mm
5 in
 
127 mm
5 in
 
135 mm
5 in
Displacement
7.01 l
428 in³
 
4.4 l
269 in³
 
7.01 l
428 in³
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 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.
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 2,200 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 2,200 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 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.
Main System - Maximum Flow
429 l/min (113 gal/min)
429 l/min (113 gal/min)
 
429 l/min (113 gal/min)
429 l/min (113 gal/min)
 
429 l/min (113 gal/min)
429 l/min (113 gal/min)
Maximum Pressure - Equipment
35000 kPa
5075 psi
 
35000 kPa
5075 psi
 
35000 kPa
5075 psi
Maximum Pressure - Equipment - Lift Mode
38000 kPa
5510 psi
 
-
 
-
Maximum Pressure - Travel
34300 kPa
4974 psi
 
34300 kPa
4974 psi
 
34300 kPa
4974 psi
Maximum Pressure - Swing
27500 kPa
3988 psi
 
25000 kPa
3625 psi
 
27500 kPa
3988 psi
Swing Speed
11.3 r/min
11.3 r/min
 
11.3 r/min
11.3 r/min
 
11.25 r/min
11.25 r/min
Maximum Swing Torque
82 kN·m
60300 ft·lbf
 
-
 
82 kN·m
60300 ft·lbf
Operating Weight
21300 kg
47000 lb
 
20400 kg
45000 lb
 
25000 kg
55100 lb
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.
 
Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1.0 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes, and 3.7 mt (8,200 lb) counterweight.
Medium undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1.0 m³ (1.31 yd³) bucket, 600 mm (24") triple grouser shoes, and 3.7 mt (8,200 lb) counterweight.
 
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.
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.
Fuel Tank Capacity
345 l
86.6 gal (US)
 
345 l
86.6 gal (US)
 
345 l
86.6 gal (US)
Cooling System
25 l
6.6 gal (US)
 
25 l
6.6 gal (US)
 
25 l
6.6 gal (US)
Engine Oil
25 l
6.6 gal (US)
 
15 l
4 gal (US)
 
25 l
6.6 gal (US)
Swing Drive - Each
6 l
1.6 gal (US)
 
-
 
6 l
1.6 gal (US)
Final Drive - Each
5 l
1.3 gal (US)
 
4 l
1.1 gal (US)
 
5 l
1.3 gal (US)
Hydraulic System - Including Tank
234 l
61.8 gal (US)
 
234 l
61.8 gal (US)
 
234 l
61.8 gal (US)
Hydraulic Tank
115 l
30.4 gal (US)
 
115 l
30.4 gal (US)
 
115 l
30.4 gal (US)
DEF Tank
-
 
-
 
41 l
10.8 gal (US)
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")
 
Reach 5.7 m (18'8")
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")
 
Reach 2.9 m (9'6")
Reach 2.9 m (9'6")
Bucket
HD 1.19 m³ (1.56 yd³)
HD 1.19 m³ (1.56 yd³)
 
1.0 m³ (1.31 yd³)
1.0 m³ (1.31 yd³)
 
HD 1.30 m³ (1.71 yd³)
HD 1.30 m³ (1.71 yd³)
Shipping Height - Top of Cab
2960 mm
9.7 ft
 
-
 
2960 mm
9.7 ft
Handrail Height
2950 mm
9.8 ft
 
-
 
2950 mm
9.7 ft
Shipping Length
9530 mm
31.3 ft
 
-
 
9530 mm
31.3 ft
Tail Swing Radius
2830 mm
9.3 ft
 
-
 
2830 mm
9.3 ft
Counterweight Clearance
1050 mm
3.4 ft
 
1050 mm
3.4 ft
 
1050 mm
3.4 ft
Ground Clearance
470 mm
1.5 ft
 
-
 
470 mm
1.5 ft
Track Length
4450 mm
14.7 ft
 
-
 
4450 mm
14.6 ft
Length to Center of Rollers
3650 mm
12 ft
 
-
 
3650 mm
12 ft
Track Gauge
2380 mm
7.8 ft
 
-
 
2380 mm
7.8 ft
Transport Width
2980 mm
9.8 ft
 
2980 mm
9.8 ft
 
3170 mm
10.4 ft
Maximum Digging Depth
6720 mm
22 ft
 
-
 
6730 mm
22.1 ft
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")
 
Reach 5.7 m (18'8")
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")
 
Reach 2.9 m (9'6")
Reach 2.9 m (9'6")
Bucket
HD 1.19 m³ (1.56 yd³)
HD 1.19 m³ (1.56 yd³)
 
1.0 m³ (1.31 yd³)
1.0 m³ (1.31 yd³)
 
HD 1.30 m³ (1.71 yd³)
HD 1.30 m³ (1.71 yd³)
Maximum Reach at Ground Level
9860 mm
32.3 ft
 
-
 
9870 mm
32.4 ft
Maximum Cutting Height
9370 mm
30.7 ft
 
-
 
9450 mm
31 ft
Maximum Loading Height
6490 mm
21.3 ft
 
-
 
6480 mm
21.3 ft
Minimum Loading Height
2170 mm
7.1 ft
 
-
 
2160 mm
7.1 ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
6550 mm
21.5 ft
 
-
 
6560 mm
21.5 ft
Maximum Vertical Wall Digging Depth
5190 mm
17 ft
 
-
 
5740 mm
18.8 ft
Bucket Digging Force - ISO
150 kN
33811 lbf
 
-
 
140 kN
34308 lbf
Stick Digging Force - ISO
106 kN
23911 ft·lbf
 
-
 
107 kN
26094 lbf
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).
Recyclability
98%
98%
X
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