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305 CR Mini Hydraulic Excavator

Net Power

45 hp

Operating Weight

12,688 lb

Dig Depth

144.5 in

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SPECIFICATIONS

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

FULL SPECIFICATIONS

Air Conditioning System

Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).

Blade

Angle Blade Height

15.7 in

Angle Blade Width

78 in

Straight Blade Height

15.4 in

Angle Blade - Left

25 degrees

Straight Blade Width

78 in

Angle Blade - Right

25 degrees

Certification - Cab and Canopy

Tip Over Protective Structure (TOPS)

ISO 12117:1997

Top Guard

ISO 10262:1998 Level I

Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Dimensions - Long Stick

Dig Depth

144.5 in

Stick Length

63 in

Track Width

78 in

O/A Undercarriage Length

101.6 in

Maximum Blade Depth

23.4 in

Tail Swing with Counterweight

47.2 in

Maximum Dump Clearance

151.4 in

Boom Swing - Left

615 mm

Vertical Wall

100.8 in

Boom Swing - Right

34.1 °

Note

*Overall Shipping Length depends on blade position during shipment.

Maximum Dig Height

210.8 in

Maximum Blade Height

15.2 in

Swing Bearing - Height

24.4 in

Tail Swing without Counterweight

43.1 in

Boom Height - Shipping Position

74.6 in

Overall Shipping Length*

210.2 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

O/A Shipping Height

100.4 in

Ground Clearance

13.2 in

Dimensions - Standard Stick

O/A Shipping Height

100.4 in

Maximum Blade Height

15.2 in

Maximum Dig Height

205.3 in

Boom In Reach

101.2 in

Swing Bearing - Height

24.4 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

Note

*Overall Shipping Length depends on blade position during shipment.

Boom Height - Shipping Position

71.7 in

Stick Length

53.2 in

Maximum Blade Depth

23.4 in

Maximum Reach

226.6 in

Track Belt/Shoe Width

15.7 in

Boom Swing - Left

24.2 °

Vertical Wall

91.9 in

Overall Shipping Length*

208.9 in

O/A Undercarriage Length

101.6 in

Tail Swing with Counterweight

47.2 in

Maximum Dump Clearance

145.7 in

Ground Clearance

13.2 in

Engine

Net Power

45 hp

Engine Model

C1.7 Turbo

Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC

45 hp

Emissions

The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

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

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.

Hydraulic System

Digging Force - Stick - Standard

6,362 lbf

Digging Force - Bucket

11,061 lbf

Note

Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Auxiliary Circuit - Secondary - Flow

7 gpm

Auxiliary Circuit - Primary - Pressure

3,843 psi

Auxiliary Circuit - Secondary - Pressure

3,843 psi

Auxiliary Circuit - Primary - Flow

21 gpm

Operating Pressure - Equipment

3,843 psi

Pump Flow at 2,400 rpm

35 gpm

Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Digging Force - Stick - Long

5,665 lbf

Operating Pressure - Swing

2,901 psi

Operating Pressure - Travel

3,843 psi

Service Refill Capacities

Hydraulic Tank

16 gal (US)

Fuel Tank

17 gal (US)

Cooling System

2.9 gal (US)

Engine Oil

1.6 gal (US)

Hydraulic System

20 gal (US)

Sound

Operator Sound Pressure (ISO 6396:2008)

76 dB(A)

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.

Sustainability

Recyclability

96%

Swing System

Boom Swing - Right

50 Degrees

Boom Swing - Left

72 Degrees

Machine Swing Speed

9 r/min

Travel System

Ground Pressure - Minimum Weight

4 psi

Maximum Traction Force - High Speed

5,553 lbf

Maximum Traction Force - Low Speed

11,353 lbf

Ground Pressure - Maximum Weight

4.7 psi

Travel Speed - High

3.1 mile/h

Travel Speed - Low

1.7 mile/h

Gradeability - Maximum

30 degrees

Weight Increase from Minimum Configuration

Steel Tracks with Pads

827 lb

Long Stick

75 lb

Counterweight

534 lb

Angle Blade

225 lb

Weights

Operating Weight

12,688 lb

Minimum Operating Weight with Canopy*

11,016 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.

Minimum Operating Weight with Cab*

11,234 lb

Maximum Operating Weight with Cab**

12,688 lb

Maximum Operating Weight with Canopy**

12,469 lb

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
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)

OPTIONAL EQUIPMENT

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)