Mini Excavators 305 CR

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Key Specs

Net Power
45 HP
33.6 kW
Operating Weight
12688 lb
5754 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 45 HP 33.6 kW
Engine Model C1.7 Turbo C1.7 Turbo
Displacement 101 in³ 1.662 l
Gross Power - 2,400 rpm - SAE J1995:2014 48.4 HP 36.1 kW
Stroke 3.9 in 100 mm
Bore 3.3 in 84 mm
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 HP 33.6 kW
Note 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.
Emissions Meets EU Stage V emission standards. Meets EU Stage V emission standards.
Operating Weight 12688 lb 5754 kg
Note (2) **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* 11257 lb 5105 kg
Note (1) *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* 11038 lb 5006 kg
Maximum Operating Weight with Canopy** 12491 lb 5665 kg
Maximum Operating Weight with Cab** 12710 lb 5764 kg
Dig Depth 144.5 in 3670 mm
Maximum Reach 235.8 in 5990 mm
O/A Shipping Height 100.4 in 2550 mm
Vertical Wall 100.8 in 2560 mm
Track Width 78 in 1980 mm
Overall Shipping Length* 210.2 in 5340 mm
Maximum Dump Clearance 151.4 in 3845 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Boom Swing - Right 34.1 ° 865 mm
Boom Swing - Left 615 mm 24.2 °
Tail Swing without Counterweight 43.1 in 1095 mm
Track Belt/Shoe Width 15.7 in 400 mm
Maximum Reach - Ground Level 229.7 in 5835 mm
Stick Length 63 in 1601 mm
Swing Bearing - Height 24.4 in 619 mm
O/A Undercarriage Length 101.6 in 2580 mm
Boom In Reach 101.6 in 2580 mm
Maximum Blade Depth 25.6 in 650 mm
Maximum Blade Height 15.7 in 400 mm
Maximum Dig Height 210.8 in 5355 mm
Boom Height - Shipping Position 74.6 in 1895 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
Ground Clearance 13.2 in 335 mm
Hydraulic Tank 16 gal (US) 60 l
Engine Oil 1.6 gal (US) 6 l
Hydraulic System 20 gal (US) 75 l
Fuel Tank 17 gal (US) 63 l
Cooling System 2.9 gal (US) 11 l
Boom Swing - Left 72 Degrees 72 Degrees
Machine Swing Speed 9 r/min 9 r/min
Boom Swing - Right 50 Degrees 50 Degrees
Digging Force - Bucket 11061 lbf 49.2 kN
Auxiliary Circuit - Secondary - Pressure 3843 psi 265 bar
Operating Pressure - Equipment 3843 psi 265 bar
Auxiliary Circuit - Secondary - Flow 7 gal/min 28 l/min
Operating Pressure - Travel 3843 psi 265 bar
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard 6362 lbf 28.3 kN
Auxiliary Circuit - Primary - Pressure 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.
Pump Flow at 2,400 rpm 35 gal/min 133 l/min
Auxiliary Circuit - Primary - Flow 21 gal/min 80 l/min
Operating Pressure - Swing 2901 psi 200 bar
Digging Force - Stick - Long 5665 lbf 25.2 kN
Tail Swing without Counterweight 43.1 in 1095 mm
Boom Swing - Left 24.2 ° 615 mm
Boom Swing - Right 34.1 ° 865 mm
Maximum Dig Height 205.3 in 5215 mm
Vertical Wall 91.9 in 2335 mm
Maximum Blade Height 15.7 in 400 mm
Swing Bearing - Height 24.4 in 619 mm
Boom Height - Shipping Position 71.7 in 1820 mm
Overall Shipping Length* 208.9 in 5305 mm
O/A Shipping Height 100.4 in 2550 mm
Dig Depth 134.6 in 3420 mm
Maximum Reach - Ground Level 220.1 in 5590 mm
Maximum Dump Clearance 145.7 in 3700 mm
Maximum Reach 226.6 in 5755 mm
Boom In Reach 101.2 in 2570 mm
Maximum Blade Depth 25.6 in 650 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
O/A Undercarriage Length 101.6 in 2580 mm
Track Belt/Shoe Width 15.7 in 400 mm
Stick Length 53.2 in 1351 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Ground Clearance 13.2 in 335 mm
Maximum Traction Force - High Speed 5553 lbf 24.7 kN
Travel Speed - High 3.1 mile/h 5 km/h
Travel Speed - Low 1.7 mile/h 2.8 km/h
Ground Pressure - Maximum Weight 4.7 psi 32.2 kPa
Gradeability - Maximum 30 degrees 30 degrees
Ground Pressure - Minimum Weight 4 psi 27.3 kPa
Maximum Traction Force - Low Speed 11353 lbf 50.5 kN
Counterweight 534 lb 242 kg
Angle Blade 203 lb 92 kg
Long Stick 75 lb 34 kg
Steel Tracks with Pads 827 lb 375 kg
Angle Blade - Right 25 degrees 25 degrees
Angle Blade Width 78 in 1980 mm
Angle Blade Height 15.7 in 400 mm
Straight Blade Width 78 in 1980 mm
Straight Blade Height 15.4 in 390 mm
Angle Blade - Left 25 degrees 25 degrees
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
Operator Sound Pressure (ISO 6396:2008) 76 dB(A) 76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 97 dB(A) 97 dB(A)
Note European Union Directive "2000/14/EC" European Union Directive "2000/14/EC"

305 CR Standard Equipment

ENGINE

  • Cat® C1.7 Turbo Engine (EU Stage V)
  • 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

OPERATOR ENVIRONMENT

  • Canopy or Cab (Canopy not available in some regions)
  • 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
  • Battery Disconnect
  • 12 Volt Power Socket
  • Travel Alarm (optional in some regions)

305 CR Optional Equipment

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
  • LED Front Lights
  • LED Front and Rear Lights
  • LED Boom Light
  • 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

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)

GUARDING

  • Polycarbonate Half Height Front Guard (Canopy only)
  • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
  • Heavy Duty Front Guard ISO 10262:1998 Level II
  • Heavy Duty Top Guard 10262:1998 Level II (Cab only)

OTHER

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

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