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Wheel Excavators
M322
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Engine Power - ISO 14396
174 HP
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Engine Power - ISO 14396 (DIN)
176 hp (metric)
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Engine Model
C 7.1
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Net Power - ISO 9249
171 HP
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Net Power - ISO 9249 (DIN)
174 hp (metric)
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Bore
4.1 in
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Displacement
427.8 in²
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Stroke
5.3 in
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Biodiesel Capability
Up to B20¹
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Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.
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Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
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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.
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Main System - Maximum Flow - Implement
95 gal/min
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Maximum Pressure - Implement Circuit - Heavy Lift
5366 psi
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Maximum Pressure - Implement Circuit - Travel Circuit
5076 psi
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Maximum Pressure - Implement Circuit - Normal
5076 psi
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Swing Torque
44250 lb/ft
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Operating Weight Maximum
52911 lb
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Operating Weight Minimum
44750 lb
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Fuel Tank
124.2 gal (US)
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Diesel Exhaust Fluid (DEF)
7.9 gal (US)
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Cooling System
10.6 gal (US)
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Engine Oil
3.4 gal (US)
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Hydraulic Tank
52.8 gal (US)
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Hydraulic System - Including Tank
71.3 gal (US)
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Forward/Reverse - 2nd Gear
18.6 mile/h
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Forward/Reverse - 1st Gear
5.6 mile/h
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Creeper Speed - 1st Gear
3.4 mile/h
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Creeper Speed - 2nd Gear
9.3 mile/h
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Drawbar Pull
28551 lbf
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Maximum Gradeability
70%
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Boom
VA 5.4m (17'10")
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Stick
2.9m (9'2")
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Shipping Height with Falling Object Guard
11 ft
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Support Point
11.3 ft
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Shipping Length
31.1 ft
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Tail Swing Radius
9.2 ft
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Counterweight Clearance
4.3 ft
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Ground Clearance
1.25 ft
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Wheel Base
9 ft
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Boom Type
VA 5.4m (17'10")
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Bucket
GD 1.2 m³ (1.7 yd³)
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Maximum Loading Height
24.7 ft
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Maximum Digging Depth
21.8 ft
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Reach at Ground Level
33.4 ft
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Vertical Wall Digging Depth
17.3 ft
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Bucket Forces (ISO)
33946 lbf
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Stick Forces (ISO)
23605 lbf
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Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
21.6 ft
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Cutting Height
35.8 ft
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Note
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.43 metric tonnes.
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