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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Engine
- Net Power
- 45 hp
- Engine Model
- C1.7 Turbo
- 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.
- Gross Power - 2,400 rpm - SAE J1995:2014
- 48.4 hp
- Stroke
- 3.9 in
- 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.
- Note (2)
- Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
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.
- Minimum Operating Weight with Cab*
- 11,234 lb
- Maximum Operating Weight with Cab**
- 12,688 lb
- Maximum Operating Weight with Canopy**
- 12,469 lb
- Note (2)
- **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Dimensions - Long Stick
- Dig Depth
- 144.5 in
- Stick Length
- 63 in
- Track Width
- 78 in
- Maximum Blade Depth
- 23.4 in
- Maximum Dump Clearance
- 151.4 in
- Boom Swing - Left
- 615 mm
- Boom Swing - Right
- 34.1 °
- Swing Bearing - Height
- 24.4 in
- Boom Height - Shipping Position
- 74.6 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
- Maximum Blade Height
- 15.2 in
- O/A Shipping Height
- 100.4 in
- Tail Swing without Counterweight
- 43.1 in
- O/A Undercarriage Length
- 101.6 in
- Tail Swing with Counterweight
- 47.2 in
- Vertical Wall
- 100.8 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Overall Shipping Length*
- 210.2 in
- Maximum Dig Height
- 210.8 in
- Ground Clearance
- 13.2 in
Swing System
- Boom Swing - Left
- 72 Degrees
- Machine Swing Speed
- 9 r/min
- Boom Swing - Right
- 50 Degrees
Dimensions - Standard Stick
- Maximum Dig Height
- 205.3 in
- Maximum Blade Height
- 15.2 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
- Boom Height - Shipping Position
- 71.7 in
- Maximum Blade Depth
- 23.4 in
- Maximum Reach
- 226.6 in
- Boom Swing - Left
- 24.2 °
- Overall Shipping Length*
- 208.9 in
- O/A Undercarriage Length
- 101.6 in
- Swing Bearing - Height
- 24.4 in
- Stick Length
- 53.2 in
- Track Belt/Shoe Width
- 15.7 in
- Boom In Reach
- 101.2 in
- Vertical Wall
- 91.9 in
- Tail Swing with Counterweight
- 47.2 in
- Maximum Dump Clearance
- 145.7 in
- O/A Shipping Height
- 100.4 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Ground Clearance
- 13.2 in
Service Refill Capacities
- Hydraulic Tank
- 16 gal (US)
- Fuel Tank
- 17 gal (US)
- Engine Oil
- 1.6 gal (US)
- Hydraulic System
- 20 gal (US)
- Cooling System
- 2.9 gal (US)
Travel System
- Ground Pressure - Minimum Weight
- 4 psi
- Maximum Traction Force - Low Speed
- 11,353 lbf
- Ground Pressure - Maximum Weight
- 4.7 psi
- Travel Speed - Low
- 1.7 mile/h
- Maximum Traction Force - High Speed
- 5,553 lbf
- Travel Speed - High
- 3.1 mile/h
- Gradeability - Maximum
- 30 degrees
Blade
- Angle Blade Width
- 78 in
- Straight Blade Height
- 15.4 in
- Straight Blade Width
- 78 in
- Angle Blade Height
- 15.7 in
- Angle Blade - Left
- 25 degrees
- Angle Blade - Right
- 25 degrees
Sound
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A)
- Note
- *The declared dynamic operator sound pressure levels per ISO 6,396:2,008. 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 a
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A)
Hydraulic System
- Auxiliary Circuit - Secondary - Pressure
- 3,843 psi
- Pump Flow at 2,400 rpm
- 35 gal/min
- Operating Pressure - Swing
- 2,901 psi
- Operating Pressure - Travel
- 3,843 psi
- Auxiliary Circuit - Secondary - Flow
- 7 gal/min
- Digging Force - Stick - Standard
- 6,362 lbf
- Auxiliary Circuit - Primary - Pressure
- 3,843 psi
- Auxiliary Circuit - Primary - Flow
- 21 gal/min
- Digging Force - Bucket
- 11,061 lbf
- Operating Pressure - Equipment
- 3,843 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Stick - Long
- 5,665 lbf
Certification - Cab and Canopy
- Top Guard
- ISO 10,262:1,998 Level I
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Weight Increase from Minimum Configuration
- Counterweight
- 534 lb
- Long Stick
- 75 lb
- Steel Tracks with Pads
- 827 lb
- Angle Blade
- 225 lb
Sustainability
- Recyclability
- 96%
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)
Specifications
Engine
- Net Power
- 45 hp
- Engine Model
- C1.7 Turbo
- 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.
- Gross Power - 2,400 rpm - SAE J1995:2014
- 48.4 hp
- Stroke
- 3.9 in
- 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.
- Note (2)
- Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
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.
- Minimum Operating Weight with Cab*
- 11,234 lb
- Maximum Operating Weight with Cab**
- 12,688 lb
- Maximum Operating Weight with Canopy**
- 12,469 lb
- Note (2)
- **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Dimensions - Long Stick
- Dig Depth
- 144.5 in
- Stick Length
- 63 in
- Track Width
- 78 in
- Maximum Blade Depth
- 23.4 in
- Maximum Dump Clearance
- 151.4 in
- Boom Swing - Left
- 615 mm
- Boom Swing - Right
- 34.1 °
- Swing Bearing - Height
- 24.4 in
- Boom Height - Shipping Position
- 74.6 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
- Maximum Blade Height
- 15.2 in
- O/A Shipping Height
- 100.4 in
- Tail Swing without Counterweight
- 43.1 in
- O/A Undercarriage Length
- 101.6 in
- Tail Swing with Counterweight
- 47.2 in
- Vertical Wall
- 100.8 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Overall Shipping Length*
- 210.2 in
- Maximum Dig Height
- 210.8 in
- Ground Clearance
- 13.2 in
Swing System
- Boom Swing - Left
- 72 Degrees
- Machine Swing Speed
- 9 r/min
- Boom Swing - Right
- 50 Degrees
Dimensions - Standard Stick
- Maximum Dig Height
- 205.3 in
- Maximum Blade Height
- 15.2 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
- Boom Height - Shipping Position
- 71.7 in
- Maximum Blade Depth
- 23.4 in
- Maximum Reach
- 226.6 in
- Boom Swing - Left
- 24.2 °
- Overall Shipping Length*
- 208.9 in
- O/A Undercarriage Length
- 101.6 in
- Swing Bearing - Height
- 24.4 in
- Stick Length
- 53.2 in
- Track Belt/Shoe Width
- 15.7 in
- Boom In Reach
- 101.2 in
- Vertical Wall
- 91.9 in
- Tail Swing with Counterweight
- 47.2 in
- Maximum Dump Clearance
- 145.7 in
- O/A Shipping Height
- 100.4 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Ground Clearance
- 13.2 in
Service Refill Capacities
- Hydraulic Tank
- 16 gal (US)
- Fuel Tank
- 17 gal (US)
- Engine Oil
- 1.6 gal (US)
- Hydraulic System
- 20 gal (US)
- Cooling System
- 2.9 gal (US)
Travel System
- Ground Pressure - Minimum Weight
- 4 psi
- Maximum Traction Force - Low Speed
- 11,353 lbf
- Ground Pressure - Maximum Weight
- 4.7 psi
- Travel Speed - Low
- 1.7 mile/h
- Maximum Traction Force - High Speed
- 5,553 lbf
- Travel Speed - High
- 3.1 mile/h
- Gradeability - Maximum
- 30 degrees
Blade
- Angle Blade Width
- 78 in
- Straight Blade Height
- 15.4 in
- Straight Blade Width
- 78 in
- Angle Blade Height
- 15.7 in
- Angle Blade - Left
- 25 degrees
- Angle Blade - Right
- 25 degrees
Sound
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97 dB(A)
- Note
- *The declared dynamic operator sound pressure levels per ISO 6,396:2,008. 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 a
- Operator Sound Pressure (ISO 6396:2008)
- 76 dB(A)
Hydraulic System
- Auxiliary Circuit - Secondary - Pressure
- 3,843 psi
- Pump Flow at 2,400 rpm
- 35 gal/min
- Operating Pressure - Swing
- 2,901 psi
- Operating Pressure - Travel
- 3,843 psi
- Auxiliary Circuit - Secondary - Flow
- 7 gal/min
- Digging Force - Stick - Standard
- 6,362 lbf
- Auxiliary Circuit - Primary - Pressure
- 3,843 psi
- Auxiliary Circuit - Primary - Flow
- 21 gal/min
- Digging Force - Bucket
- 11,061 lbf
- Operating Pressure - Equipment
- 3,843 psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Stick - Long
- 5,665 lbf
Certification - Cab and Canopy
- Top Guard
- ISO 10,262:1,998 Level I
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
Weight Increase from Minimum Configuration
- Counterweight
- 534 lb
- Long Stick
- 75 lb
- Steel Tracks with Pads
- 827 lb
- Angle Blade
- 225 lb
Sustainability
- Recyclability
- 96%
Standard/Optional Features
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)