New CAT Equipment

305 CR Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

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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Benefits

4 Industry First Features

Cat Exclusives in a Mini Excavator

Up to 10% Lower Total Ownership Costs

with extended service intervals, lower repair costs and easy service access

Up to 20% More Performance

in lifting, digging and multi-function capability

Learn more about the 305 CR Mini Hydraulic Excavator

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  • Blade
    Angle Blade - Left
    25 degrees
    Angle Blade - Right
    25 degrees
    Angle Blade Height
    15.7 in
    Angle Blade Width
    78 in
    Straight Blade Height
    15.4 in
    Straight Blade Width
    78 in
  • Certification - Cab and Canopy
    Roll Over Protective Structure (ROPS)
    ISO 12117-2:2008
    Tip Over Protective Structure (TOPS)
    ISO 12117:1997
    Top Guard
    ISO 10262:1998 Level I
  • Dimensions - Long Stick
    Boom Height - Shipping Position
    74.6 in
    Boom In Reach
    101.6 in
    Boom Swing - Left
    615 mm
    Boom Swing - Right
    34.1 °
    Dig Depth
    144.5 in
    Ground Clearance
    13.2 in
    Maximum Blade Depth
    23.4 in
    Maximum Blade Height
    15.2 in
    Maximum Dig Height
    210.8 in
    Maximum Dump Clearance
    151.4 in
    Maximum Reach
    235.8 in
    Maximum Reach - Ground Level
    229.7 in
    Note
    *Overall Shipping Length depends on blade position during shipment.
    O/A Shipping Height
    100.4 in
    O/A Undercarriage Length
    101.6 in
    Overall Shipping Length*
    210.2 in
    Stick Length
    63 in
    Swing Bearing - Height
    24.4 in
    Tail Swing with Counterweight
    47.2 in
    Tail Swing without Counterweight
    43.1 in
    Track Belt/Shoe Width
    15.7 in
    Track Width
    78 in
    Vertical Wall
    100.8 in
  • Dimensions - Standard Stick
    Boom Height - Shipping Position
    71.7 in
    Boom In Reach
    101.2 in
    Boom Swing - Left
    24.2 °
    Boom Swing - Right
    34.1 °
    Dig Depth
    134.6 in
    Ground Clearance
    13.2 in
    Maximum Blade Depth
    23.4 in
    Maximum Blade Height
    15.2 in
    Maximum Dig Height
    205.3 in
    Maximum Dump Clearance
    145.7 in
    Maximum Reach
    226.6 in
    Maximum Reach - Ground Level
    220.1 in
    Note
    *Overall Shipping Length depends on blade position during shipment.
    O/A Shipping Height
    100.4 in
    O/A Undercarriage Length
    101.6 in
    Overall Shipping Length*
    208.9 in
    Stick Length
    53.2 in
    Swing Bearing - Height
    24.4 in
    Tail Swing with Counterweight
    47.2 in
    Tail Swing without Counterweight
    43.1 in
    Track Belt/Shoe Width
    15.7 in
    Vertical Wall
    91.9 in
  • Engine
    Bore
    3.3 in
    Displacement
    101 in³
    Emissions
    The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
    Engine Model
    C1.7 Turbo
    Gross Power - 2,400 rpm - SAE J1995:2014
    48.4 hp
    Net Power
    45 hp
    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.
    Note (2)
    Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
    Stroke
    3.9 in
  • Hydraulic System
    Auxiliary Circuit - Primary - Flow
    21 gal/min
    Auxiliary Circuit - Primary - Pressure
    3843 psi
    Auxiliary Circuit - Secondary - Flow
    7 gal/min
    Auxiliary Circuit - Secondary - Pressure
    3843 psi
    Digging Force - Bucket
    11061 lbf
    Digging Force - Stick - Long
    5665 lbf
    Digging Force - Stick - Standard
    6362 lbf
    Note
    Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Operating Pressure - Equipment
    3843 psi
    Operating Pressure - Swing
    2901 psi
    Operating Pressure - Travel
    3843 psi
    Pump Flow at 2,400 rpm
    35 gal/min
    Type
    Load Sensing Hydraulics with Variable Displacement Piston Pump
  • Service Refill Capacities
    Cooling System
    2.9 gal (US)
    Engine Oil
    1.6 gal (US)
    Fuel Tank
    17 gal (US)
    Hydraulic System
    20 gal (US)
    Hydraulic Tank
    16 gal (US)
  • Sound
    Average Exterior Sound Pressure (ISO 6395:2008)
    97 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)
    76 dB(A)
  • Sustainability
    Recyclability
    96%
  • Swing System
    Boom Swing - Left
    72 Degrees
    Boom Swing - Right
    50 Degrees
    Machine Swing Speed
    9 r/min
  • Travel System
    Gradeability - Maximum
    30 degrees
    Ground Pressure - Maximum Weight
    4.7 psi
    Ground Pressure - Minimum Weight
    4 psi
    Maximum Traction Force - High Speed
    5553 lbf
    Maximum Traction Force - Low Speed
    11353 lbf
    Travel Speed - High
    3.1 mile/h
    Travel Speed - Low
    1.7 mile/h
  • Weight Increase from Minimum Configuration
    Angle Blade
    225 lb
    Counterweight
    534 lb
    Long Stick
    75 lb
    Steel Tracks with Pads
    827 lb
  • Weights
    Maximum Operating Weight with Cab**
    12688 lb
    Maximum Operating Weight with Canopy**
    12469 lb
    Minimum Operating Weight with Cab*
    11234 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.
    Note (2)
    **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
    Operating Weight
    12688 lb
ENGINE
  • Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final)
  • Automatic Engine Idle
  • Automatic Engine Shutdown
  • Automatic Two Speed Travel
  • Fuel Water Separator
  • Power on Demand (not available in all regions)
  • Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
HYDRAULICS
  • Smart Tech Electronic Pump
  • Accumulator
  • Automatic Swing Brake
  • Auxiliary Hydraulic Lines
  • One and Two Way Auxiliary Flow
  • Continuous Auxiliary Flow
  • Auxiliary Line Quick Disconnects
GUARDING
  • ROPS ISO 12117-2:2008
  • Top Guard ISO 10262:1998 (Level I)
OTHER
  • Eco Drain
OPERATOR ENVIRONMENT
  • LED Front and Rear Lights
  • LED Boom Light
  • Canopy or Cab
  • Top Guard ISO 10262:1998 Level I
  • ROPS – ISO 12117-2:2008
  • TOPS – ISO 12117:1997
  • Stick Steer Mode
  • Travel Cruise Control
  • Control Pattern Changer (optional in some regions)
  • Adjustable Wrist Rests
  • Washable Floor Mat
  • Travel Pedals and Hand Levers
  • Machine Security
  • Machine Security – Standard Key with Pass Code
  • Fabric Suspension Seat (Cab only)
  • Vinyl Suspension Seat (Canopy only)
  • Hydraulic Lockout – All Controls
  • Retractable High Visibility Seat Belt (75 mm/3 in)
  • Coat Hook
  • Cup Holder
  • Storage Pocket
  • Skylight
  • Mounting Bosses for Front
  • Signaling/Warning Horn
  • Interior Light (Cab only)
  • Boom Light, Halogen (not available in all regions)
  • Utility Space for Mobile Phone
  • Next Generation Color LCD Monitor (IP66)
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Hour Meter with Wake Up Switch
    – Jog Dial (cab only)
UNDERCARRIAGE
  • Rubber Belt (400 mm/15.7 in)
  • Dozer Straight Blade
  • Dozer Blade Float
  • Tie Downs on Track Frame
BOOM, STICK AND LINKAGES
  • One Piece Boom (2716 mm/106.9 in)
  • Standard Stick (1351 mm/53.2 in)
  • Front Shovel Capable – Pin-On
  • Thumb Ready
  • Certified Lifting Eye
ELECTRICAL
  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Lock Out/Tag Out Battery Disconnect
  • 12 Volt Power Socket
  • Travel Alarm (optional in some regions)
UNDERCARRIAGE
  • Steel Track (400 mm/15.7 in)
  • Steel Track with Rubber Pads
  • Angle Blade
BOOM, STICK AND LINKAGES
  • Long Stick (1601 mm/63.0 in)
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Front Shovel Capable – Hydraulic Coupler
  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Bucket Divert Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Hydraulic Quick Coupler Lines
ELECTRICAL
  • Product Link™ PL243 (regulations apply)
  • Product Link PLE643 (regulations apply)
OTHER
  • Bio Oil Capable
  • Water Jacket Heater
  • Counterweight (242 kg/534 lb)
OPERATOR ENVIRONMENT
  • Cab with Air Conditioning
  • Cab with Heater
  • No Travel Pedals and Hand Levers (optional in some regions)
  • Machine Security – Push to Start with Key Fob/Pass Code
  • Mirrors, Left, Right and Rear
  • Camera
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
  • Next Generation Advanced Monitor
    – Touch Screen
    – Site Reference System
    – High Definition Camera Capable (IP68 and IP69K)
    – Numeric Security Code
  • Seat Belt Reminder System
  • Cat Grade with Advanced 2D
  • Cat Grade with 3D
GUARDING
  • Top Guard ISO 10262:1998 (Level II)
  • Front Guard (Mesh) ISO 10262:1998 (Level I)
  • Front Guard (Heavy Duty) ISO 10262:1998 (Level II)

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