Mini Excavators 305 CR

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Key Specs

Net Power
36.5 HP
27.2 kW
Operating Weight
12555 lb
5695 kg
Dig Depth
144.5 in
3670 mm

Overview

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.

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

Product Specifications for 305 CR

Net Power 36.5 HP 27.2 kW
Engine Model C1.7 Turbo C1.7 Turbo
Stroke 3.9 in 100 mm
Displacement 101 in³ 1.662 l
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 36.5 HP 27.2 kW
Note (1) 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. 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.
Bore 3.3 in 84 mm
Gross Power - 2,400 rpm - SAE J1995:2014 38.9 HP 29 kW
Note Meets Brazil MAR-1 emission standards. Equivalent to EU Stage IIIA emission standards. Meets Brazil MAR-1 emission standards. Equivalent to EU Stage IIIA emission standards.
Operating Weight 12555 lb 5695 kg
Note (1) **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket. **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Minimum Operating Weight with Cab* 11100 lb 5035 kg
Maximum Operating Weight with Canopy** 12337 lb 5596 kg
Note *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight. *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 Canopy* 10882 lb 4936 kg
Maximum Operating Weight with Cab** 12555 lb 5695 kg
Dig Depth 144.5 in 3670 mm
Overall Shipping Length* 210.2 in 5340 mm
Maximum Blade Height 15.7 in 400 mm
Boom Swing - Right 34.1 in 865 mm
Track Width 78 in 1980 mm
Maximum Dig Height 210.8 in 5355 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Maximum Reach 235.8 in 5990 mm
Maximum Dump Clearance 151.4 in 3845 mm
Maximum Reach - Ground Level 229.7 in 5835 mm
O/A Shipping Height 100.4 in 2550 mm
Stick Length 63 in 1601 mm
O/A Undercarriage Length 101.8 in 2585 mm
Boom In Reach 101.6 in 2580 mm
Swing Bearing - Height 24.4 in 619 mm
Boom Height - Shipping Position 74.6 in 1895 mm
Tail Swing without Counterweight 43.1 in 1095 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
Track Belt/Shoe Width 15.7 in 400 mm
Vertical Wall 100.8 in 2560 mm
Maximum Blade Depth 25.6 in 650 mm
Boom Swing - Left 24.2 in 615 mm
Ground Clearance 13.2 in 335 mm
Maximum Blade Height 15.7 in 400 mm
Boom Swing - Left 24.2 in 615 mm
Vertical Wall 91.9 in 2335 mm
Maximum Blade Depth 25.6 in 650 mm
O/A Undercarriage Length 101.8 in 2585 mm
Boom Swing - Right 34.1 in 865 mm
Dig Depth 134.6 in 3420 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
Stick Length 53.2 in 1351 mm
Overall Shipping Length* 208.9 in 5305 mm
Tail Swing without Counterweight 43.1 in 1095 mm
Maximum Dig Height 205.3 in 5215 mm
O/A Shipping Height 100.4 in 2550 mm
Track Belt/Shoe Width 15.7 in 400 mm
Swing Bearing - Height 24.4 in 619 mm
Maximum Dump Clearance 145.7 in 3700 mm
Maximum Reach 226.6 in 5755 mm
Maximum Reach - Ground Level 220.1 in 5590 mm
Boom Height - Shipping Position 71.7 in 1820 mm
Boom In Reach 101.2 in 2570 mm
Ground Clearance 13.2 in 335 mm
Average Exterior Sound Pressure (ISO 6395:2008) 97 dB(A) 97 dB(A)
Operator Sound Pressure (ISO 6396:2008) 76 dB(A) 76 dB(A)
Note European Union Directive “2000/14/EC” European Union Directive “2000/14/EC”
Auxiliary Circuit - Secondary - Flow 7 gal/min 28 l/min
Pump Flow at 2,400 rpm 35 gal/min 133 l/min
Auxiliary Circuit - Secondary - Pressure 3843 psi 265 bar
Digging Force - Stick - Standard 6362 lbf 28.3 kN
Auxiliary Circuit - Primary - Flow 21 gal/min 80 l/min
Auxiliary Circuit - Primary - Pressure 3843 psi 265 bar
Digging Force - Stick - Long 5665 lbf 25.2 kN
Operating Pressure - Swing 2901 psi 200 bar
Operating Pressure - Equipment 3843 psi 265 bar
Note *Flow and pressure are not combinable. Under load, as flow rises pressure goes down. *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Travel 3843 psi 265 bar
Digging Force - Bucket 11061 lbf 49.2 kN
Angle Blade Width 78 in 1980 mm
Straight Blade Height 16.3 in 415 mm
Angle Blade Height 15.7 in 400 mm
Angle Blade - Left 25 degrees 25 degrees
Angle Blade - Right 25 degrees 25 degrees
Straight Blade Width 78 in 1980 mm
Engine Oil 1.6 gal (US) 6 l
Cooling System 2.9 gal (US) 11 l
Hydraulic Tank 20 gal (US) 75 l
Hydraulic System 16 gal (US) 60 l
Fuel Tank 17 gal (US) 63 l
Steel Tracks with Pads 827 lb 375 kg
Long Stick 75 lb 34 kg
Angle Blade 203 lb 92 kg
Counterweight 534 lb 242 kg
Machine Swing Speed 9 r/min 9 r/min
Boom Swing - Right 50 ° 50 °
Boom Swing - Left 72 ° 72 °
Ground Pressure - Maximum Weight 4.6 psi 31.8 kPa
Travel Speed - Low 1.7 mile/h 2.8 km/h
Ground Pressure - Minimum Weight 3.9 psi 26.9 kPa
Maximum Traction Force - Low Speed 11353 lbf 50.5 kN
Maximum Traction Force - High Speed 5553 lbf 24.7 kN
Gradeability - Maximum 30 degrees 30 degrees
Travel Speed - High 2.8 mile/h 4.5 km/h
Roll Over Protective Structure (ROPS) ISO 12117-2:2008 ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997 ISO 12117:1997
Top Guard ISO 10262:1998 Level I ISO 10262:1998 Level I

305 CR Standard Equipment

ENGINE

  • Cat C1.7 Turbo Engine (Brazil MAR-1, equivalent to EU Stage IIIA)
  • Power on Demand (not available in all regions)
  • Load Sensing/Flow Sharing Hydraulics
  • Automatic Engine Idle
  • Variable Displacement Piston Pump
  • Automatic Engine Shutdown
  • Fuel Water Separator
  • Automatic Two Speed Travel

HYDRAULICS

  • Accumulator
  • Continuous Auxiliary Flow
  • One and Two Way Auxiliary Flow
  • Auxiliary Line Quick Disconnects
  • Automatic Swing Brake
  • Auxiliary Hydraulic Lines
  • Smart Tech Electronic Pump

OPERATOR ENVIRONMENT

  • Cup Holder
  • TOPS - ISO 12117:1997
  • Interior Light (Cab only)
  • Boom Light, Halogen (not available in all regions)
  • Top Guard ISO 10262:1998 Level I
  • Signaling/Warning Horn
  • Control Pattern Changer (optional in some regions)
  • Travel Cruise Control
  • Travel Pedals and Hand Levers
  • Storage Pocket
  • Skylight
  • Fabric Suspension Seat (Cab only)
  • Machine Security -Standard Key with Pass Code
  • 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)
  • Canopy or Cab
  • Vinyl Suspension Seat (Canopy only)
  • Retractable High Visibility Seat Belt (75 mm/3 in)
  • Adjustable Wrist Rests
  • ROPS - ISO 12117-2:2008
  • Mounting Bosses for Front
  • Washable Floor Mat
  • Control Pattern Changer (optional in some regions)
  • Hydraulic Lockout - All Controls
  • Utility Space for Mobile Phone
  • Stick Steer Mode
  • Coat Hook

UNDERCARRIAGE

  • Dozer Straight Blade
  • Rubber Belt (400 mm/15.7 in)
  • Dozer Blade Float
  • Tie Downs on Track Frame

BOOM, STICK AND LINKAGES

  • Thumb Ready
  • Standard Stick (1351 mm/53.2 in)
  • One Piece Boom (2716 mm/106.9 in)
  • Front Shovel Capable
    -Pin-On
  • Certified Lifting Eye (optional in some regions)

ELECTRICAL

  • Battery Disconnect
  • 12 Volt Power Socket
  • Maintenance Free Battery
  • 12 Volt Battery
  • Product Link PL243 (regulations apply)
  • Software (machine and monitor)

305 CR Optional Equipment

OPERATOR ENVIRONMENT

  • LED Boom Light
  • Mirrors, Left, Right and Rear
  • Camera
  • LED Front and Rear Lights
  • Machine Security -Push to Start with Key Fob/Pass Code
  • USB (charging only) (Cab only)
  • LED Front Lights
  • No Travel Pedals and Hand Levers (optional in some regions)
  • Cab with Air Conditioning
  • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
  • Radio - Bluetooth, Auxiliary, Microphone,

UNDERCARRIAGE

  • Steel Track (400 mm/15.7 in)
  • Angle Blade
  • Steel Track with Rubber Pads

BOOM, STICK AND LINKAGES

  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
  • Boom Lowering Check Valve
  • Long Stick (1601 mm/63.0 in)
  • Hydraulic Quick Coupler Lines
  • 2nd Auxiliary Hydraulic Lines
  • Bucket Divert Lines
  • Stick Lowering Check Valve
  • Front Shovel Capable
    -Dual Lock Manual Coupler
    -Hydraulic Coupler
  • 2nd Auxiliary Hydraulic Lines

ELECTRICAL

  • Rotating Beacon
  • Product Link PLE643 (regulations apply)

GUARDING

  • Polycarbonate Half Height Front Guard (Canopy only)
  • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
  • Travel Alarm (optional in some regions)
  • Heavy Duty Front Guard ISO 10262:1998 Level II

OTHER

  • Eco Drain
  • Water Jacket Heater
  • Bio Oil Capable
  • Counterweight (242 kg/534 lb)

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