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 303.5 CR Mini Hydraulic Excavator |
 M322 |
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Engine |
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| Net Power | 23.6 HP | - | - |
| Engine Model | C1.7 | C 7.1 | - |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. | Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. | - |
| Note (2) | Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load. | 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 | - |
| Stroke | 3.9 in | 5.3 in | - |
| Gross Power - 2,400 rpm - SAE J1995 | 24.7 HP | - | - |
| Bore | 3.3 in | 4.1 in | - |
| Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 23.6 HP | - | - |
| Displacement | 104 in³ | 427.8 in² | - |
| Note | Net power is tested per ISO 9249 and 80/1269/EEC. | - | - |
| Engine Power - ISO 14396 | - | 174 HP | - |
| Engine Power - ISO 14396 (DIN) | - | 176 hp (metric) | - |
| Net Power - ISO 9249 | - | 171 HP | - |
| Net Power - ISO 9249 (DIN) | - | 174 hp (metric) | - |
| Biodiesel Capability | - | Up to B20¹ | - |
| 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 standar | - |
Weights |
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| Operating Weight | 9239 lb | - | - |
| Minimum Operating Weight with Canopy* | 7673 lb | - | - |
| EU: CE Plate Weight with Cab*** | 8004 lb | - | - |
| Note (3) | ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket. | - | - |
| Maximum Operating Weight with Cab** | 9239 lb | - | - |
| Maximum Operating Weight with Canopy** | 8930 lb | - | - |
| EU: CE Plate Weight with Canopy*** | 7784 lb | - | - |
| Minimum Operating Weight with Cab* | 7982 lb | - | - |
| Note (1) | * Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight. | - | - |
| Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight. | - | - |
Dimensions - Long Stick |
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| Dig Depth | 122.4 in | - | - |
| Boom Height - Shipping Position | 68.9 in | - | - |
| Maximum Blade Height | 15.2 in | - | - |
| O/A Undercarriage Length | 87.4 in | - | - |
| Boom Swing - Right | 34.3 ° | - | - |
| Tail Swing with Counterweight | 37.8 in | - | - |
| Track Belt/Shoe Width | 11.8 in | - | - |
| Maximum Reach | 216.9 in | - | - |
| O/A Track Width | 70.1 in | - | - |
| Maximum Blade Depth | 21.1 in | - | - |
| Tail Swing without Counterweight | 35 in | - | - |
| Stick Length | 61.4 in | - | - |
| Swing Bearing - Height | 22.2 in | - | - |
| Boom Swing - Left | 640 mm | - | - |
| Overall Shipping Length* | 190.9 in | - | - |
| Maximum Reach - Ground Level | 211.8 in | - | - |
| Maximum Dump Clearance | 141.7 in | - | - |
| O/A Shipping Height | 97.6 in | - | - |
| Note | *Overall Shipping Length depends on blade position during shipment. | - | - |
| Boom In Reach | 73.2 in | - | - |
| Maximum Dig Height | 197.6 in | - | - |
| Vertical Wall | 94.1 in | - | - |
| Ground Clearance | 12.2 in | - | - |
Blade |
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| Height | 13.8 in | - | - |
| Width | 70.1 in | - | - |
Dimensions - Standard Stick |
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| Tail Swing without Counterweight | 35 in | - | - |
| Maximum Blade Depth | 21.1 in | - | - |
| Maximum Blade Height | 15.2 in | - | - |
| Tail Swing with Counterweight | 37.8 in | - | - |
| Tail Swing with Extra Counterweight | 39.6 in | - | - |
| Boom Swing - Right | 34.3 ° | - | - |
| Stick Length | 49.6 in | - | - |
| Maximum Reach - Ground Level | 202 in | - | - |
| Boom Swing - Left | 25.2 ° | - | - |
| Maximum Reach | 207.5 in | - | - |
| Track Belt/Shoe Width | 11.8 in | - | - |
| Maximum Dump Clearance | 137.4 in | - | - |
| Swing Bearing - Height | 22.2 in | - | - |
| Boom Height - Shipping Position | 59.8 in | - | - |
| O/A Shipping Height | 97.6 in | - | - |
| Overall Shipping Length* | 189 in | - | - |
| Boom In Reach | 69.3 in | - | - |
| Note | *Overall Shipping Length depends on blade position during shipment. | - | - |
| Maximum Dig Height | 193.7 in | - | - |
| Vertical Wall | 88.6 in | - | - |
| Dig Depth | 110.6 in | - | - |
| O/A Undercarriage Length | 87.4 in | - | - |
| Ground Clearance | 12.2 in | - | - |
Hydraulic System |
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| Digging Force - Stick - Standard | 4249 lbf | - | - |
| Pump Flow at 2,400 rpm | 26 gal/min | - | - |
| Auxiliary Circuit - Primary - Flow | 18 gal/min | - | - |
| Operating Pressure - Swing | 2625 psi | - | - |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump | - | - |
| Auxiliary Circuit - Secondary - Pressure | 3553 psi | - | - |
| Digging Force - Stick - Long | 3799 lbf | - | - |
| Auxiliary Circuit - Secondary - Flow | 7 gal/min | - | - |
| Digging Force - Bucket | 7419 lbf | - | - |
| Operating Pressure - Travel | 3553 psi | - | - |
| Operating Pressure - Equipment | 3553 psi | - | - |
| Auxiliary Circuit - Primary - Pressure | 3553 psi | - | - |
| Note | *Flow and pressure are not combinable. Under load, as flow rises pressure goes down. | - | - |
| Main System - Maximum Flow - Implement | - | 95 gal/min | - |
| Maximum Pressure - Implement Circuit - Heavy Lift | - | 5366 psi | - |
| Maximum Pressure - Implement Circuit - Travel Circuit | - | 5076 psi | - |
| Maximum Pressure - Implement Circuit - Normal | - | 5076 psi | - |
Certification - Cab and Canopy |
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| Tip Over Protective Structure (TOPS) | ISO 12117:1997 | - | - |
| Top Guard | ISO 10262:1998 (Level I) | - | - |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 | - | - |
Travel System |
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| Ground Pressure - Maximum Weight | 5.2 psi | - | - |
| Ground Pressure - Minimum Weight | 4.3 psi | - | - |
| Maximum Traction Force - High Speed | 3799 lbf | - | - |
| Maximum Traction Force - Low Speed | 6969 lbf | - | - |
| Travel Speed - High | 2.8 mile/h | - | - |
| Gradeability - Maximum | 30 degrees | - | - |
| Travel Speed - Low | 1.6 mile/h | - | - |
Sustainability |
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| Recyclability | 95% | - | - |
Weight Increase from Minimum Configuration |
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| Cab | 309 lb | - | - |
| Counterweight | 221 lb | - | - |
| Steel Tracks | 287 lb | - | - |
| Long Stick | 44 lb | - | - |
| Angle Blade | 353 lb | - | - |
| Extra Counterweight | 551 lb | - | - |
Dimensions (Approximate) - Standard Stick |
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| Tail Swing with Extra Counterweight | 39.6 in | - | - |
Dimensions (Approximate) - Long Stick |
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| Tail Swing with Extra Counterweight | 39.6 in | - | - |
Service Refill Capacities |
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| Fuel Tank | 11.9 gal (US) | 124.2 gal (US) | - |
| Hydraulic Tank | 5.3 gal (US) | 52.8 gal (US) | - |
| Cooling System | 1.8 gal (US) | 10.6 gal (US) | - |
| Engine Oil | 1.6 gal (US) | 3.4 gal (US) | - |
| Hydraulic System | 11.9 gal (US) | - | - |
| Diesel Exhaust Fluid (DEF) | - | 7.9 gal (US) | - |
| Hydraulic System - Including Tank | - | 71.3 gal (US) | - |
Sound |
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| Note | European Union Directive ‚ "2000/14/EC" | - | - |
| Operator Sound Pressure (ISO 6396:2008) | 78 dB(A) | - | - |
| Average Exterior Sound Pressure (ISO 6395:2008) | 94 dB(A) | - | - |
Swing System |
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| Machine Swing Speed | 9 r/min | - | - |
| Boom Swing - Right | 50 ° | - | - |
| Boom Swing - Left | 75 ° | - | - |
Machine Weight |
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| Operating Weight Maximum | - | 52911 lb | - |
| Operating Weight Minimum | - | 44750 lb | - |
Transmission |
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| Forward/Reverse - 2nd Gear | - | 18.6 mile/h | - |
| Forward/Reverse - 1st Gear | - | 5.6 mile/h | - |
| Creeper Speed - 1st Gear | - | 3.4 mile/h | - |
| Creeper Speed - 2nd Gear | - | 9.3 mile/h | - |
| Drawbar Pull | - | 28551 lbf | - |
| Maximum Gradeability | - | 70% | - |
Swing Mechanism |
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| Swing Torque | - | 44250 lb/ft | - |
Dimensions |
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| Boom | - | VA 5.4m (17'10") | - |
| Stick | - | 2.9m (9'2") | - |
| Shipping Height with Falling Object Guard | - | 11 ft | - |
| Support Point | - | 11.3 ft | - |
| Shipping Length | - | 31.1 ft | - |
| Tail Swing Radius | - | 9.2 ft | - |
| Counterweight Clearance | - | 4.3 ft | - |
| Ground Clearance | - | 1.25 ft | - |
| Wheel Base | - | 9 ft | - |
Working Ranges and Forces |
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| Boom Type | - | VA 5.4m (17'10") | - |
| Stick | - | 2.9m (9'2") | - |
| Bucket | - | GD 1.2 m³ (1.7 yd³) | - |
| Maximum Loading Height | - | 24.7 ft | - |
| Maximum Digging Depth | - | 21.8 ft | - |
| Reach at Ground Level | - | 33.4 ft | - |
| Vertical Wall Digging Depth | - | 17.3 ft | - |
| Bucket Forces (ISO) | - | 33946 lbf | - |
| Stick Forces (ISO) | - | 23605 lbf | - |
| Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | - | 21.6 ft | - |
working Ranges and Forces |
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| Cutting Height | - | 35.8 ft | - |
Air Conditioning System |
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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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