301.8 Mini Hydraulic Excavator

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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Bore 3in
Displacement 69in³
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model C1.1
Gross Power - SAE J1995:2014 21.6HP
Net Power 21HP
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 21HP
Note Net power is tested per ISO 9249:2007 and 80/1269/EEC.
Note (1) Engine power is tested per ISO 14396:2002.
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.
Stroke 3.2in
EU: CE Plate Weight with Cab*** 4409lb
EU: CE Plate Weight with Canopy*** 4145lb
Maximum Operating Weight with Cab** 4473lb
Maximum Operating Weight with Canopy** 4211lb
Minimum Operating Weight with Cab* 4075lb
Minimum Operating Weight with Canopy* 3803lb
Note (1) *Minimum Weight is based on rubber tracks, operator, fixed undercarriage and full fuel tank.
Note (2) **Maximum Weight is based on steel tracks, operator, expandable 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.
Operating Weight 4473lb
Boom Height - Shipping Position 40.2in
Boom In Reach 55.9in
Boom Swing - Left 65°
Boom Swing - Right 50°
Dig Depth 101.2in
Maximum Blade Depth 10.4in
Maximum Blade Height 10.6in
Maximum Dig Height 142.5in
Maximum Dump Clearance 103.9in
Maximum Reach 158.7in
Maximum Reach - Ground Level 155.9in
Minimum Ground Clearance Below Undercarriage 5.9in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 90.6in
O/A Undercarriage Length 62.6in
Overall Shipping Length* 146.1in
Stick Length 45.7in
Swing Bearing - Height 17.4in
Tail Swing 39.2in
Track Belt/Shoe Width 9.1in
Track Width - Expanded 51.18in
Track Width - Retracted 39in
Vertical Wall 76.4in
Height 8.9in
Note *Expanded – 1300 mm (51 in)
Width* 39in
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 4.3psi
Ground Pressure - Minimum Weight 3.9psi
Maximum Traction Force - High Speed 2675.2lbf
Maximum Traction Force - Low Speed 4136.5lbf
Travel Speed - High 2.7mile/h
Travel Speed - Low 1.8mile/h
Boom Height - Shipping Position 42.1in
Boom In Reach 55.9in
Boom Swing - Left 65°
Boom Swing - Right 50°
Dig Depth 93.3in
Maximum Blade Depth 10.4in
Maximum Blade Height 10.6in
Maximum Dig Height 139.8in
Maximum Dump Clearance 100.8in
Maximum Reach 152.4in
Maximum Reach - Ground Level 149.6in
Minimum Ground Clearance Below Undercarriage 5.9in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 90.6in
O/A Undercarriage Length 62.6in
Overall Shipping Length* 146.5in
Stick Length 37.8in
Swing Bearing - Height 17.4in
Tail Swing 39.2in
Track Belt/Shoe Width 9.1in
Track Width - Expanded 51.18in
Track Width - Retracted 39in
Vertical Wall 72.8in
Auxiliary Circuit - Primary - Flow 8.7gal/min
Auxiliary Circuit - Primary - Pressure 3553.4psi
Auxiliary Circuit - Secondary - Flow 3.7gal/min
Auxiliary Circuit - Secondary - Pressure 3553.4psi
Digging Force - Bucket 4406.3lbf
Digging Force - Stick - Long 2203.1lbf
Digging Force - Stick - Standard 2540.3lbf
Operating Pressure - Equipment 3553.4psi
Operating Pressure - Swing 2132.1psi
Operating Pressure - Travel 3553.4psi
Pump Flow at 2,400 rpm 17.4gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level I)
Cooling System 1gal (US)
Engine Oil 1.2gal (US)
Fuel Tank 6.9gal (US)
Hydraulic System 6.9gal (US)
Hydraulic Tank 4.8gal (US)
Average Exterior Sound Pressure (ISO 6395:2008) 93dB(A)
Note European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008) 73dB(A)
Expandable Undercarriage 271lb
Long Stick 18lb
Steel Tracks 110lb
Machine Swing Speed 9.8r/min

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
  • Operator Environment
    • Tilt-up Canopy or Tilt-Up Cab
    • Top Guard ISO 10262:1998 Level I
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • 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
    • 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
  • Undercarriage
    • Expandable 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
    • Machine Security – 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)
  • 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
    • Battery Disconnect
    • Product Link PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
    • Travel Alarm (standard in some regions)
  • Guarding
    • Guard, Canopy
    • Guard, Mesh
  • Other
    • Bio Oil Capable
    • Eco Drain
    • Water Jacket Heater