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    306 CR Mini Hydraulic Excavator
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    M322
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    Engine
    Net Power 55.9 HP - -
    Engine Model Cat C2.4 Turbo C 7.1 -
    Displacement 148 in³ 427.8 in² -
    Bore 3.4 in 4.1 in -
    Stroke 4 in 5.3 in -
    Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 55.9 HP - -
    Gross Power - ISO 14396 57.9 HP - -
    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 -
    Emissions - Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. -
    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 -
    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 -

    Dimensions - Long Stick
    Dig Depth 162 in - -
    Maximum Blade Height 16 in - -
    O/A Track Width 78 in - -
    Track Belt/Shoe Width 16 in - -
    Tail Swing with Counterweight 58 in - -
    Vertical Wall 125 in - -
    Boom In Reach 117 in - -
    Maximum Blade Depth 24 in - -
    Maximum Dig Height 241 in - -
    Transport Height 95 in - -
    Stick Length 78 in - -
    Ground Clearance 12 in - -
    Swing Bearing - Height 27 in - -
    Width over Upper House 77 in - -
    O/A Undercarriage Length 102 in - -
    O/A Shipping Length 234 in - -
    Cab Height 100 in - -
    Maximum Reach 263 in - -
    Boom Swing - Left 29 in - -
    Tail Swing without Counterweight 53 in - -
    Boom Swing - Right 36 in - -
    Maximum Dump Clearance 182 in - -
    Maximum Reach - Ground Level 257 in - -

    Weights
    Minimum Operating Weight with Canopy* 14134 lb - -
    Maximum Operating Weight with Canopy** 15633 lb - -
    Note (2) **Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket. - -
    Maximum Operating Weight with Cab** 15766 lb - -
    Minimum Operating Weight with Cab* 14266 lb - -
    Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket. - -

    Weight Increase from Minimum Configuration
    Counterweight 551 lb - -
    Long Stick 97 lb - -
    Steel Tracks with Pads 827 lb - -
    Angle Blade 225 lb - -
    XTC Carriage (no tool) 141 lb - -

    Travel System
    Ground Pressure - Minimum Weight 5.1 psi - -
    Ground Pressure - Maximum Weight 5.7 psi - -
    Gradeability - Maximum 30 degrees - -
    Maximum Traction Force - High Speed 6969 lbf - -
    Maximum Traction Force - Low Speed 12589 lbf - -
    Travel Speed - High 3.1 mile/h - -
    Travel Speed - Low 1.7 mile/h - -

    Service Refill Capacities
    Cooling System 2.6 gal (US) 10.6 gal (US) -
    Hydraulic System 27.5 gal (US) - -
    Hydraulic Tank 14 gal (US) 52.8 gal (US) -
    Engine Oil 2.1 gal (US) 3.4 gal (US) -
    Fuel Tank 34.3 gal (US) 124.2 gal (US) -
    Diesel Exhaust Fluid (DEF) - 7.9 gal (US) -
    Hydraulic System - Including Tank - 71.3 gal (US) -

    Hydraulic System
    Operating Pressure - Travel 3553 psi - -
    Auxiliary Circuit - Primary - Flow 24 gal/min - -
    Digging Force - Bucket 11578 lbf - -
    Auxiliary Circuit - Primary - Pressure 3553 psi - -
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump - -
    Auxiliary Circuit - Secondary - Flow 9 gal/min - -
    Operating Pressure - Equipment 3553 psi - -
    Auxiliary Circuit - Secondary - Pressure 3553 psi - -
    Digging Force - Stick - Standard 6632 lbf - -
    Operating Pressure - Swing 3263 psi - -
    Digging Force - Stick - Long 5957 lbf - -
    Pump Flow at 2,400 rpm 40 gal/min - -
    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 -

    Swing System
    Boom Swing - Right 65 degrees - -
    Boom Swing - Left 60 degrees - -
    Machine Swing Speed 11 r/min - -

    Blade
    Straight Blade Width 78 in - -
    Angle Blade Width 78 in - -
    Straight Blade Height 15.4 in - -
    Angle Blade Height 15.7 in - -

    Sustainability
    Recyclability 96% - -

    Certification - Cab
    Top Guard ISO 10262:1998 (Level II) - -
    Roll Over Protective Structure (ROPS) ISO 12117-2:2008 - -
    Tip Over Protective Structure (TOPS) ISO 12117:1997 - -

    Sound
    Operator Sound Pressure (ISO 6396:2008) 72 dB(A) - -
    Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) - -
    Note European Union Directive “2000/14/EC” - -

    Dimensions - Standard Stick
    Track Belt/Shoe Width 16 in - -
    Maximum Reach 248 in - -
    Stick Length 62 in - -
    Vertical Wall 107 in - -
    Swing Bearing - Height 27 in - -
    Maximum Reach - Ground Level 241 in - -
    Maximum Blade Height 16 in - -
    Ground Clearance 12 in - -
    Boom In Reach 98 in - -
    Boom Swing - Right 36 in - -
    Transport Height 69 in - -
    Tail Swing with Counterweight 58 in - -
    Cab Height 100 in - -
    Width over Upper House 77 in - -
    Maximum Dump Clearance 170 in - -
    Tail Swing without Counterweight 53 in - -
    Boom Swing - Left 29 in - -
    O/A Undercarriage Length 102 in - -
    Maximum Dig Height 230 in - -
    Maximum Blade Depth 24 in - -
    O/A Track Width 78 in - -
    Dig Depth 146 in - -
    O/A Shipping Length 235 in - -

    Air Conditioning System
    Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes. - -
    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. -

    Machine Weight
    Operating Weight Maximum - 52911 lb -
    Operating Weight Minimum - 44750 lb -

    Transmission
    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
    Swing Torque - 44250 lb/ft -

    Dimensions
    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
    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
    Cutting Height - 35.8 ft -
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