New CAT Equipment

305 CR Mini Hydraulic Excavator

The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

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    Product Specs

    Engine

    Net Power 45 HP
    Engine Model C1.7 Turbo
    Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 HP
    Note Advertised power is tested per the specified standard in effect at the time of manufacture.
    Gross Power - 2,400 rpm - SAE J1995:2014 48.4 HP
    Stroke 3.9 in
    Bore 3.3 in
    Displacement 101 in³
    Emissions The Cat® C3.3B engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

    Weights

    Operating Weight 12688 lb
    Minimum Operating Weight with Canopy* 11016 lb
    Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
    Minimum Operating Weight with Cab* 11234 lb
    Maximum Operating Weight with Cab** 12688 lb
    Maximum Operating Weight with Canopy** 12469 lb
    Note (2) **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

    Dimensions - Long Stick

    Dig Depth 144.5 in
    Stick Length 63 in
    Track Width 78 in
    Maximum Blade Depth 23.4 in
    Maximum Dump Clearance 151.4 in
    Boom Swing - Left 615 mm
    Boom Swing - Right 34.1 °
    Swing Bearing - Height 24.4 in
    Boom Height - Shipping Position 74.6 in
    Boom In Reach 101.6 in
    Maximum Reach 235.8 in
    Track Belt/Shoe Width 15.7 in
    Maximum Reach - Ground Level 229.7 in
    Maximum Blade Height 15.2 in
    O/A Shipping Height 100.4 in
    Tail Swing without Counterweight 43.1 in
    O/A Undercarriage Length 101.6 in
    Tail Swing with Counterweight 47.2 in
    Vertical Wall 100.8 in
    Note *Overall Shipping Length depends on blade position during shipment.
    Overall Shipping Length* 210.2 in
    Maximum Dig Height 210.8 in
    Ground Clearance 13.2 in

    Swing System

    Boom Swing - Left 72 Degrees
    Machine Swing Speed 9 r/min
    Boom Swing - Right 50 Degrees

    Dimensions - Standard Stick

    Maximum Dig Height 205.3 in
    Maximum Blade Height 15.2 in
    Dig Depth 134.6 in
    Boom Swing - Right 34.1 °
    Maximum Reach - Ground Level 220.1 in
    Tail Swing without Counterweight 43.1 in
    Boom Height - Shipping Position 71.7 in
    Maximum Blade Depth 23.4 in
    Maximum Reach 226.6 in
    Boom Swing - Left 24.2 °
    Overall Shipping Length* 208.9 in
    O/A Undercarriage Length 101.6 in
    Swing Bearing - Height 24.4 in
    Stick Length 53.2 in
    Track Belt/Shoe Width 15.7 in
    Boom In Reach 101.2 in
    Vertical Wall 91.9 in
    Tail Swing with Counterweight 47.2 in
    Maximum Dump Clearance 145.7 in
    O/A Shipping Height 100.4 in
    Note *Overall Shipping Length depends on blade position during shipment.
    Ground Clearance 13.2 in

    Service Refill Capacities

    Hydraulic Tank 16 gal (US)
    Fuel Tank 17 gal (US)
    Engine Oil 1.6 gal (US)
    Hydraulic System 20 gal (US)
    Cooling System 2.9 gal (US)

    Travel System

    Ground Pressure - Minimum Weight 4 psi
    Maximum Traction Force - Low Speed 11353 lbf
    Ground Pressure - Maximum Weight 4.7 psi
    Travel Speed - Low 1.7 mile/h
    Maximum Traction Force - High Speed 5553 lbf
    Travel Speed - High 3.1 mile/h
    Gradeability - Maximum 30 degrees

    Blade

    Angle Blade Width 78 in
    Straight Blade Height 15.4 in
    Straight Blade Width 78 in
    Angle Blade Height 15.7 in
    Angle Blade - Left 25 degrees
    Angle Blade - Right 25 degrees

    Sound

    Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
    Note *The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed. **The labeled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC.
    Operator Sound Pressure (ISO 6396:2008) 72 dB(A)

    Hydraulic System

    Auxiliary Circuit - Secondary - Pressure 3843 psi
    Pump Flow at 2,400 rpm 35 gal/min
    Operating Pressure - Swing 2901 psi
    Operating Pressure - Travel 3843 psi
    Auxiliary Circuit - Secondary - Flow 7 gal/min
    Digging Force - Stick - Standard 6362 lbf
    Auxiliary Circuit - Primary - Pressure 3843 psi
    Auxiliary Circuit - Primary - Flow 21 gal/min
    Digging Force - Bucket 11061 lbf
    Operating Pressure - Equipment 3843 psi
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Digging Force - Stick - Long 5665 lbf

    Certification - Cab and Canopy

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

    Weight Increase from Minimum Configuration

    Counterweight 534 lb
    Long Stick 75 lb
    Steel Tracks with Pads 827 lb
    Angle Blade 225 lb

    Sustainability

    Recyclability 96%