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301.8 Mini Excavator

301.8 Mini Hydraulic Excavator

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Overview

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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ALL DAY COMFORT
  • Choose either a canopy or a sealed and pressurized cab equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.
EASY TO OPERATE
  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information.
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 with a push of a button. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A COMPACT DESIGN
        
  • Strong lift and dig performance helps you get the job done faster. The retractable undercarriage lets you access and work in the tightest areas. Dig-to-blade and dozer blade float features allow for easy clean up.
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 with optional seat belt reminder system are just a couple of the safety features we’ve built into the machine.
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. The unique tilt up cab lets you reach additional service areas when needed.
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.
SUSTAINABILITY
  • The Cat® C1.1 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
ALL DAY COMFORT
  • Choose either a canopy or a sealed and pressurized cab equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.
EASY TO OPERATE
  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information.
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 with a push of a button. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A COMPACT DESIGN
        
  • Strong lift and dig performance helps you get the job done faster. The retractable undercarriage lets you access and work in the tightest areas. Dig-to-blade and dozer blade float features allow for easy clean up.
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 with optional seat belt reminder system are just a couple of the safety features we’ve built into the machine.
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. The unique tilt up cab lets you reach additional service areas when needed.
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.
SUSTAINABILITY
  • The Cat® C1.1 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
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Engine

Engine Model
C1.1
Net Power
21hp
Bore
3in
Displacement
69in³
Gross Power - ISO 14396
21.6HP
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
19.2HP
Stroke
3.2in
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 14396:2002.
Note
Net power is tested per ISO 9249:2007 and 80/1269/EEC.
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
21hp
Gross Power - SAE J1995:2014
21.6hp

Weights

Operating Weight
4473lb
Maximum Operating Weight with Cab
4442lb
Maximum Operating Weight with Canopy**
4211lb
Minimum Operating Weight with Cab
4045lb
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.
Maximum Operating Weight with Cab**
4473lb
Minimum Operating Weight with Cab*
4075lb
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***
4409lb
EU: CE Plate Weight with Canopy***
4145lb

Blade

Height
8.9in
Note
*Expanded – 1300 mm (51 in)
Width*
39in

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level I)

Dimensions - Long Stick

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

Dimensions - Standard Stick

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

Hydraulic System

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

Service Refill Capacities

Cooling System
1gal (US)
Engine Oil
1.2gal (US)
Fuel Tank
6.9gal (US)
Hydraulic System
6.9gal (US)
Hydraulic Tank
4.8gal (US)

Sound

Average Exterior Sound Pressure (ISO 6395:2008)
93dB(A)
Note
European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008)
73dB(A)

Swing System

Machine Swing Speed
9.8r/min

Travel System

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

Weight Increase from Minimum Configuration

Cab
298lb
Long Stick
18lb
Steel Tracks
110lb
Expandable Undercarriage
271lb

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

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