305 CR

305 CR Mini Hydraulic Excavator

The 305 CR Mini Excavator delivers power and performance in a 5 ton size class to help you work in a wide range of applications.

305 CR Mini Hydraulic Excavator

DESCRIPTION

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

ALL DAY COMFORT

  • Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat to help keep you working comfortably all day long.

305 CR Mini Excavator
305 CR Mini Excavator

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped as an upgrade option.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

305 CR Mini Excavator
305 CR Mini Excavator

BIG PERFORMANCE IN A COMPACT DESIGN

  • Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.

305 CR Mini Excavator
305 CR Mini Excavator

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors.

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

305 CR Mini Excavator
  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • 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
  • OPERATOR ENVIRONMENT
    • 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
    • Battery Disconnect
    • 12 Volt Power Socket
    • Travel Alarm (optional in some regions)

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)

Specs

Overview

Long Name:
305 CR Mini Hydraulic Excavator
Name:
305 CR
Brand:
Caterpillar
Status:
Current

Engine

Net Power
45 HP / 33.6 kW

Weights

Operating Weight
12688 lb / 5754 kg

Dimensions - Long Stick

Dig Depth
144.5 in / 3670 mm

Engine

Engine Model
C1.7 Turbo

Dimensions - Long Stick

Stick Length
63 in / 1601 mm

Engine

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
45 HP / 33.6 kW

Swing System

Boom Swing - Left
72 Degrees

Dimensions - Standard Stick

Maximum Dig Height
205.3 in / 5215 mm
Maximum Blade Height
15.2 in / 385 mm

Service Refill Capacities

Hydraulic Tank
16 gal (US) / 60 l

Dimensions - Long Stick

Track Width
78 in / 1980 mm

Service Refill Capacities

Fuel Tank
17 gal (US) / 63 l

Travel System

Ground Pressure - Minimum Weight
4 psi / 27.3 kPa

Blade

Angle Blade Width
78 in / 1980 mm

Dimensions - Long Stick

Maximum Blade Depth
23.4 in / 595 mm
Maximum Dump Clearance
151.4 in / 3845 mm
Boom Swing - Left
615 mm / 24.2 °

Dimensions - Standard Stick

Dig Depth
134.6 in / 3420 mm

Dimensions - Long Stick

Boom Swing - Right
34.1 ° / 865 mm

Dimensions - Standard Stick

Boom Swing - Right
34.1 ° / 865 mm

Travel System

Maximum Traction Force - Low Speed
11353 lbf / 50.5 kN

Dimensions - Standard Stick

Maximum Reach - Ground Level
220.1 in / 5590 mm
Tail Swing without Counterweight
43.1 in / 1095 mm

Blade

Straight Blade Height
15.4 in / 390 mm

Sound

Average Exterior Sound Pressure (ISO 6395:2008)
97 dB(A) / 97 dB(A)

Travel System

Ground Pressure - Maximum Weight
4.7 psi / 32.2 kPa

Swing System

Machine Swing Speed
9 r/min / 9 r/min

Dimensions - Long Stick

Swing Bearing - Height
24.4 in / 619 mm

Dimensions - Standard Stick

Boom Height - Shipping Position
71.7 in / 1820 mm

Engine

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.

Dimensions - Long Stick

Boom Height - Shipping Position
74.6 in / 1895 mm

Dimensions - Standard Stick

Maximum Blade Depth
23.4 in / 595 mm

Engine

Gross Power - 2,400 rpm - SAE J1995:2014
48.4 HP / 36.1 kW

Dimensions - Standard Stick

Maximum Reach
226.6 in / 5755 mm

Hydraulic System

Auxiliary Circuit - Secondary - Pressure
3843 psi / 265 bar

Certification - Cab and Canopy

Top Guard
ISO 10262:1998 Level I

Dimensions - Standard Stick

Boom Swing - Left
24.2 ° / 615 mm

Weight Increase from Minimum Configuration

Counterweight
534 lb / 242 kg

Engine

Stroke
3.9 in / 100 mm
Bore
3.3 in / 84 mm

Hydraulic System

Pump Flow at 2,400 rpm
35 gal/min / 133 l/min

Blade

Straight Blade Width
78 in / 1980 mm

Dimensions - Long Stick

Boom In Reach
101.6 in / 2580 mm
Maximum Reach
235.8 in / 5990 mm

Dimensions - Standard Stick

Overall Shipping Length*
208.9 in / 5305 mm
O/A Undercarriage Length
101.6 in / 2580 mm

Sound

Note
European Union Directive "2000/14/EC"

Travel System

Travel Speed - Low
1.7 mile/h / 2.8 km/h

Dimensions - Long Stick

Track Belt/Shoe Width
15.7 in / 400 mm

Hydraulic System

Operating Pressure - Swing
2901 psi / 200 bar
Operating Pressure - Travel
3843 psi / 265 bar

Dimensions - Long Stick

Maximum Reach - Ground Level
229.7 in / 5835 mm
Maximum Blade Height
15.2 in / 385 mm
O/A Shipping Height
100.4 in / 2550 mm

Service Refill Capacities

Engine Oil
1.6 gal (US) / 6 l

Travel System

Maximum Traction Force - High Speed
5553 lbf / 24.7 kN

Dimensions - Long Stick

Tail Swing without Counterweight
43.1 in / 1095 mm

Dimensions - Standard Stick

Swing Bearing - Height
24.4 in / 619 mm

Travel System

Travel Speed - High
3.1 mile/h / 5 km/h

Dimensions - Long Stick

O/A Undercarriage Length
101.6 in / 2580 mm

Dimensions - Standard Stick

Stick Length
53.2 in / 1351 mm

Dimensions - Long Stick

Tail Swing with Counterweight
47.2 in / 1200 mm

Hydraulic System

Auxiliary Circuit - Secondary - Flow
7 gal/min / 28 l/min

Weights

Minimum Operating Weight with Canopy*
11016 lb / 4996 kg

Weight Increase from Minimum Configuration

Long Stick
75 lb / 34 kg

Weights

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 / 5095 kg

Hydraulic System

Digging Force - Stick - Standard
6362 lbf / 28.3 kN
Auxiliary Circuit - Primary - Pressure
3843 psi / 265 bar

Dimensions - Long Stick

Vertical Wall
100.8 in / 2560 mm

Hydraulic System

Auxiliary Circuit - Primary - Flow
21 gal/min / 80 l/min
Digging Force - Bucket
11061 lbf / 49.2 kN

Dimensions - Standard Stick

Track Belt/Shoe Width
15.7 in / 400 mm

Sound

Operator Sound Pressure (ISO 6396:2008)
76 dB(A) / 76 dB(A)

Hydraulic System

Operating Pressure - Equipment
3843 psi / 265 bar
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Weights

Maximum Operating Weight with Cab**
12688 lb / 5754 kg

Dimensions - Long Stick

Note
*Overall Shipping Length depends on blade position during shipment.

Weights

Maximum Operating Weight with Canopy**
12469 lb / 5655 kg

Swing System

Boom Swing - Right
50 Degrees

Dimensions - Long Stick

Overall Shipping Length*
210.2 in / 5340 mm

Weights

Note (2)
**Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.

Service Refill Capacities

Hydraulic System
20 gal (US) / 75 l

Dimensions - Standard Stick

Boom In Reach
101.2 in / 2570 mm
Vertical Wall
91.9 in / 2335 mm

Weight Increase from Minimum Configuration

Steel Tracks with Pads
827 lb / 375 kg

Engine

Displacement
101 in³ / 1.662 l

Blade

Angle Blade Height
15.7 in / 400 mm

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

Cooling System
2.9 gal (US) / 11 l

Hydraulic System

Digging Force - Stick - Long
5665 lbf / 25.2 kN

Engine

Emissions
Meets U.S. EPA Tier 4 Final emission standards.

Dimensions - Standard Stick

Tail Swing with Counterweight
47.2 in / 1200 mm

Dimensions - Long Stick

Maximum Dig Height
210.8 in / 5355 mm

Dimensions - Standard Stick

Maximum Dump Clearance
145.7 in / 3700 mm
O/A Shipping Height
100.4 in / 2550 mm
Note
*Overall Shipping Length depends on blade position during shipment.

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997

Travel System

Gradeability - Maximum
30 degrees

Blade

Angle Blade - Left
25 degrees
Angle Blade - Right
25 degrees

Sustainability

Recyclability
96%

Dimensions - Standard Stick

Ground Clearance
13.2 in / 335 mm

Weight Increase from Minimum Configuration

Angle Blade
225 lb / 102 kg

Dimensions - Long Stick

Ground Clearance
13.2 in / 335 mm