The Cat® 301.8 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
- 21 hp
- Engine Model
- C1.1
- Stroke
- 3.2 in
- Note (2)
- 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 U.S. EPA Tier 4 Final and EU Stage V emission standards.
- Note (1)
- Engine power is tested per ISO 14,396:2,002.
- Note
- Net power is tested per ISO 9,249:2,007 and 80/1,269/EEC.
- Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
- 21 hp
- Gross Power - SAE J1995:2014
- 21.6 hp
- Bore
- 3 in
- Displacement
- 69 in³
Weights
- Operating Weight
- 4,473 lb
- Maximum Operating Weight with Cab**
- 4,473 lb
- Minimum Operating Weight with Canopy*
- 3,803 lb
- Maximum Operating Weight with Canopy**
- 4,211 lb
- Minimum Operating Weight with Cab*
- 4,075 lb
- Note (2)
- **Maximum Weight is based on steel tracks, operator, expandable undercarriage and full fuel tank.
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, fixed undercarriage and full fuel tank.
- Note (3)
- ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
- EU: CE Plate Weight with Cab***
- 4,409 lb
- EU: CE Plate Weight with Canopy***
- 4,145 lb
Dimensions - Long Stick
- Dig Depth
- 101.2 in
- Stick Length
- 45.7 in
- Vertical Wall
- 76.4 in
- Maximum Reach - Ground Level
- 155.9 in
- Track Width - Expanded
- 51.18 in
- O/A Undercarriage Length
- 62.6 in
- O/A Shipping Height
- 90.6 in
- Maximum Blade Height
- 10.6 in
- Overall Shipping Length*
- 146.1 in
- Tail Swing
- 39.2 in
- Track Width - Retracted
- 39 in
- Maximum Blade Depth
- 10.4 in
- Boom In Reach
- 55.9 in
- Maximum Dump Clearance
- 103.9 in
- Boom Swing - Right
- 50 °
- Maximum Reach
- 158.7 in
- Boom Swing - Left
- 65 °
- Maximum Dig Height
- 142.5 in
- Swing Bearing - Height
- 17.4 in
- Boom Height - Shipping Position
- 40.2 in
- Minimum Ground Clearance Below Undercarriage
- 5.9 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Track Belt/Shoe Width
- 9.1 in
Blade
- Height
- 8.9 in
- Width*
- 39 in
- Note
- *Expanded – 1,300 mm (51 in)
Travel System
- Travel Speed - Low
- 1.8 mile/h
- Maximum Traction Force - High Speed
- 2,675.2 lbf
- Travel Speed - High
- 2.7 mile/h
- Ground Pressure - Maximum Weight
- 4.3 psi
- Maximum Traction Force - Low Speed
- 4,136.5 lbf
- Ground Pressure - Minimum Weight
- 3.9 psi
- Gradeability - Maximum
- 30 degrees
Dimensions - Standard Stick
- Boom In Reach
- 55.9 in
- Maximum Reach - Ground Level
- 149.6 in
- Maximum Blade Depth
- 10.4 in
- Stick Length
- 37.8 in
- Vertical Wall
- 72.8 in
- Boom Height - Shipping Position
- 42.1 in
- Track Width - Expanded
- 51.18 in
- Overall Shipping Length*
- 146.5 in
- Maximum Blade Height
- 10.6 in
- Boom Swing - Right
- 50 °
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Minimum Ground Clearance Below Undercarriage
- 5.9 in
- Maximum Reach
- 152.4 in
- Swing Bearing - Height
- 17.4 in
- Maximum Dig Height
- 139.8 in
- Track Belt/Shoe Width
- 9.1 in
- Tail Swing
- 39.2 in
- Boom Swing - Left
- 65 °
- Track Width - Retracted
- 39 in
- O/A Undercarriage Length
- 62.6 in
- Maximum Dump Clearance
- 100.8 in
- O/A Shipping Height
- 90.6 in
- Dig Depth
- 93.3 in
Hydraulic System
- Operating Pressure - Equipment
- 3,553.4 psi
- Auxiliary Circuit - Secondary - Flow
- 3.7 gal/min
- Digging Force - Bucket
- 4,406.3 lbf
- Operating Pressure - Travel
- 3,553.4 psi
- Digging Force - Stick - Long
- 2,203.1 lbf
- Auxiliary Circuit - Secondary - Pressure
- 3,553.4 psi
- Operating Pressure - Swing
- 2,132.1 psi
- Auxiliary Circuit - Primary - Flow
- 8.7 gal/min
- Pump Flow at 2,400 rpm
- 17.4 gal/min
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Stick - Standard
- 2,540.3 lbf
- Auxiliary Circuit - Primary - Pressure
- 3,553.4 psi
Certification - Cab and Canopy
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
Service Refill Capacities
- Cooling System
- 1 gal (US)
- Hydraulic Tank
- 4.8 gal (US)
- Engine Oil
- 1.2 gal (US)
- Hydraulic System
- 6.9 gal (US)
- Fuel Tank
- 6.9 gal (US)
Sound
- Operator Sound Pressure (ISO 6396:2008)
- 73 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 93 dB(A)
- Note
- European Union Directive “2,000/14/EC”
Weight Increase from Minimum Configuration
- Steel Tracks
- 110 lb
- Long Stick
- 18 lb
- Expandable Undercarriage
- 271 lb
Swing System
- Machine Swing Speed
- 9.8 r/min
Sustainability
- Recyclability
- 95%
Standard Equipment:
-
- Engine
-
- Cat C1.1 Engine (U.S. EPA Tier 4 Final/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
-
- Guarding
-
- ROPS ISO 12117-2:2008
- TOPS ISO 12117:1997
- Top Guard ISO 10262:1998
-
- Operator Environment
-
- Tilt-up Canopy or Tilt-Up Cab
- Machine 2-Point Lifting
- 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
- Standard Key with Pass Code
- Vinyl Non-Suspension Seat
- Fabric Suspension Seat (Cab 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
- 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 - Seat Belt Reminder System
-
- Undercarriage
-
- Rubber Belt (250 mm/10 in wide)
- Dozer Blade
- Dozer Blade Float
- Hydraulic Track Adjusters
- Tie Downs on Track Frame
-
- Boom, Stick And Linkages
-
- One Piece Boom (1850 mm/73 in)
- Standard Stick (960 mm/37.8 in)
- Front Shovel Capable
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some regions)
-
- Electrical
-
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Signaling/Warning Horn
- 12 Volt Power Socket
Optional Equipment:
-
- Operator Environment
-
- Cab with Air Conditioning
- Cab with Heater
- Control Pattern Changer (optional in some regions)
- No Travel Pedals and Hand Levers
- Push to Start with Key Fob/Pass Code
- Vinyl Suspension Seat (Canopy only)
- LED Front Lights
- LED Front and Rear Lights
- LED Boom Light
- Mirrors Left and Right
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
-
- Undercarriage
-
- Steel Track (250 mm/10 in wide)
- Expandable Undercarriage
-
- Boom, Stick And Linkages
-
- Long Stick (1160 mm/45.7 in)
- Front Shovel Capable – Dual Lock Manual Coupler
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines (not available in all regions)
-
- Electrical
-
- Lock Out/Tag Out Battery Disconnect
- Product Link PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- Travel Alarm (standard in some regions)
-
- Guarding
-
- Polycarbonate Half Height Front Guard (Canopy only)
- Polycarbonate Front Guard (ISO 10262:1998 Level 1 and EN356 PSA)
-
- Other
-
- Bio Oil Capable
- Eco Drain
- Water Jacket Heater
Specifications
Engine
- Net Power
- 21 hp
- Engine Model
- C1.1
- Stroke
- 3.2 in
- Note (2)
- 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 U.S. EPA Tier 4 Final and EU Stage V emission standards.
- Note (1)
- Engine power is tested per ISO 14,396:2,002.
- Note
- Net power is tested per ISO 9,249:2,007 and 80/1,269/EEC.
- Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
- 21 hp
- Gross Power - SAE J1995:2014
- 21.6 hp
- Bore
- 3 in
- Displacement
- 69 in³
Weights
- Operating Weight
- 4,473 lb
- Maximum Operating Weight with Cab**
- 4,473 lb
- Minimum Operating Weight with Canopy*
- 3,803 lb
- Maximum Operating Weight with Canopy**
- 4,211 lb
- Minimum Operating Weight with Cab*
- 4,075 lb
- Note (2)
- **Maximum Weight is based on steel tracks, operator, expandable undercarriage and full fuel tank.
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, fixed undercarriage and full fuel tank.
- Note (3)
- ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
- EU: CE Plate Weight with Cab***
- 4,409 lb
- EU: CE Plate Weight with Canopy***
- 4,145 lb
Dimensions - Long Stick
- Dig Depth
- 101.2 in
- Stick Length
- 45.7 in
- Vertical Wall
- 76.4 in
- Maximum Reach - Ground Level
- 155.9 in
- Track Width - Expanded
- 51.18 in
- O/A Undercarriage Length
- 62.6 in
- O/A Shipping Height
- 90.6 in
- Maximum Blade Height
- 10.6 in
- Overall Shipping Length*
- 146.1 in
- Tail Swing
- 39.2 in
- Track Width - Retracted
- 39 in
- Maximum Blade Depth
- 10.4 in
- Boom In Reach
- 55.9 in
- Maximum Dump Clearance
- 103.9 in
- Boom Swing - Right
- 50 °
- Maximum Reach
- 158.7 in
- Boom Swing - Left
- 65 °
- Maximum Dig Height
- 142.5 in
- Swing Bearing - Height
- 17.4 in
- Boom Height - Shipping Position
- 40.2 in
- Minimum Ground Clearance Below Undercarriage
- 5.9 in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Track Belt/Shoe Width
- 9.1 in
Blade
- Height
- 8.9 in
- Width*
- 39 in
- Note
- *Expanded – 1,300 mm (51 in)
Travel System
- Travel Speed - Low
- 1.8 mile/h
- Maximum Traction Force - High Speed
- 2,675.2 lbf
- Travel Speed - High
- 2.7 mile/h
- Ground Pressure - Maximum Weight
- 4.3 psi
- Maximum Traction Force - Low Speed
- 4,136.5 lbf
- Ground Pressure - Minimum Weight
- 3.9 psi
- Gradeability - Maximum
- 30 degrees
Dimensions - Standard Stick
- Boom In Reach
- 55.9 in
- Maximum Reach - Ground Level
- 149.6 in
- Maximum Blade Depth
- 10.4 in
- Stick Length
- 37.8 in
- Vertical Wall
- 72.8 in
- Boom Height - Shipping Position
- 42.1 in
- Track Width - Expanded
- 51.18 in
- Overall Shipping Length*
- 146.5 in
- Maximum Blade Height
- 10.6 in
- Boom Swing - Right
- 50 °
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Minimum Ground Clearance Below Undercarriage
- 5.9 in
- Maximum Reach
- 152.4 in
- Swing Bearing - Height
- 17.4 in
- Maximum Dig Height
- 139.8 in
- Track Belt/Shoe Width
- 9.1 in
- Tail Swing
- 39.2 in
- Boom Swing - Left
- 65 °
- Track Width - Retracted
- 39 in
- O/A Undercarriage Length
- 62.6 in
- Maximum Dump Clearance
- 100.8 in
- O/A Shipping Height
- 90.6 in
- Dig Depth
- 93.3 in
Hydraulic System
- Operating Pressure - Equipment
- 3,553.4 psi
- Auxiliary Circuit - Secondary - Flow
- 3.7 gal/min
- Digging Force - Bucket
- 4,406.3 lbf
- Operating Pressure - Travel
- 3,553.4 psi
- Digging Force - Stick - Long
- 2,203.1 lbf
- Auxiliary Circuit - Secondary - Pressure
- 3,553.4 psi
- Operating Pressure - Swing
- 2,132.1 psi
- Auxiliary Circuit - Primary - Flow
- 8.7 gal/min
- Pump Flow at 2,400 rpm
- 17.4 gal/min
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Stick - Standard
- 2,540.3 lbf
- Auxiliary Circuit - Primary - Pressure
- 3,553.4 psi
Certification - Cab and Canopy
- Tip Over Protective Structure (TOPS)
- ISO 12,117:1,997
- Roll Over Protective Structure (ROPS)
- ISO 12,117-2:2,008
- Top Guard
- ISO 10,262:1,998 (Level I)
Service Refill Capacities
- Cooling System
- 1 gal (US)
- Hydraulic Tank
- 4.8 gal (US)
- Engine Oil
- 1.2 gal (US)
- Hydraulic System
- 6.9 gal (US)
- Fuel Tank
- 6.9 gal (US)
Sound
- Operator Sound Pressure (ISO 6396:2008)
- 73 dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 93 dB(A)
- Note
- European Union Directive “2,000/14/EC”
Weight Increase from Minimum Configuration
- Steel Tracks
- 110 lb
- Long Stick
- 18 lb
- Expandable Undercarriage
- 271 lb
Swing System
- Machine Swing Speed
- 9.8 r/min
Sustainability
- Recyclability
- 95%
Standard/Optional Features
Standard Equipment:
-
- Engine
-
- Cat C1.1 Engine (U.S. EPA Tier 4 Final/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
-
- Guarding
-
- ROPS ISO 12117-2:2008
- TOPS ISO 12117:1997
- Top Guard ISO 10262:1998
-
- Operator Environment
-
- Tilt-up Canopy or Tilt-Up Cab
- Machine 2-Point Lifting
- 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
- Standard Key with Pass Code
- Vinyl Non-Suspension Seat
- Fabric Suspension Seat (Cab 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
- 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 - Seat Belt Reminder System
-
- Undercarriage
-
- Rubber Belt (250 mm/10 in wide)
- Dozer Blade
- Dozer Blade Float
- Hydraulic Track Adjusters
- Tie Downs on Track Frame
-
- Boom, Stick And Linkages
-
- One Piece Boom (1850 mm/73 in)
- Standard Stick (960 mm/37.8 in)
- Front Shovel Capable
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some regions)
-
- Electrical
-
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Signaling/Warning Horn
- 12 Volt Power Socket
Optional Equipment:
-
- Operator Environment
-
- Cab with Air Conditioning
- Cab with Heater
- Control Pattern Changer (optional in some regions)
- No Travel Pedals and Hand Levers
- Push to Start with Key Fob/Pass Code
- Vinyl Suspension Seat (Canopy only)
- LED Front Lights
- LED Front and Rear Lights
- LED Boom Light
- Mirrors Left and Right
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
-
- Undercarriage
-
- Steel Track (250 mm/10 in wide)
- Expandable Undercarriage
-
- Boom, Stick And Linkages
-
- Long Stick (1160 mm/45.7 in)
- Front Shovel Capable – Dual Lock Manual Coupler
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- 2nd Auxiliary Hydraulic Lines
- Boom Lowering Check Valve
- Stick Lowering Check Valve
- Hydraulic Quick Coupler Lines (not available in all regions)
-
- Electrical
-
- Lock Out/Tag Out Battery Disconnect
- Product Link PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- Travel Alarm (standard in some regions)
-
- Guarding
-
- Polycarbonate Half Height Front Guard (Canopy only)
- Polycarbonate Front Guard (ISO 10262:1998 Level 1 and EN356 PSA)
-
- Other
-
- Bio Oil Capable
- Eco Drain
- Water Jacket Heater