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301.8 Mini Hydraulic Excavator

301.8 Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

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More Comfort – More Performance – More Versatility

  • 4 Industry First Features

    Cat Exclusives in a Mini Excavator

  • Up to 15% Lower Total Ownership Costs

    with more common parts, lower repair costs and tilt up cab

  • Up to 20% More Performance

    with programmable operator settings and faster cyle times

Engine

Bore 3 in
Displacement 69 in³
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model C1.1
Gross Power - SAE J1995:2014 21.6 hp
Net Power 21 hp
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 21 hp
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 3.2 in

Weights

EU: CE Plate Weight with Cab*** 4409 lb
EU: CE Plate Weight with Canopy*** 4145 lb
Maximum Operating Weight with Cab** 4473 lb
Maximum Operating Weight with Canopy** 4211 lb
Minimum Operating Weight with Cab* 4075 lb
Minimum Operating Weight with Canopy* 3803 lb
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 4473 lb

Dimensions - Long Stick

Boom Height - Shipping Position 40.2 in
Boom In Reach 55.9 in
Boom Swing - Left 65 °
Boom Swing - Right 50 °
Dig Depth 101.2 in
Maximum Blade Depth 10.4 in
Maximum Blade Height 10.6 in
Maximum Dig Height 142.5 in
Maximum Dump Clearance 103.9 in
Maximum Reach 158.7 in
Maximum Reach - Ground Level 155.9 in
Minimum Ground Clearance Below Undercarriage 5.9 in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 90.6 in
O/A Undercarriage Length 62.6 in
Overall Shipping Length* 146.1 in
Stick Length 45.7 in
Swing Bearing - Height 17.4 in
Tail Swing 39.2 in
Track Belt/Shoe Width 9.1 in
Track Width - Expanded 51.18 in
Track Width - Retracted 39 in
Vertical Wall 76.4 in

Blade

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

Travel System

Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 4.3 psi
Ground Pressure - Minimum Weight 3.9 psi
Maximum Traction Force - High Speed 2675.2 lbf
Maximum Traction Force - Low Speed 4136.5 lbf
Travel Speed - High 2.7 mile/h
Travel Speed - Low 1.8 mile/h

Dimensions - Standard Stick

Boom Height - Shipping Position 42.1 in
Boom In Reach 55.9 in
Boom Swing - Left 65 °
Boom Swing - Right 50 °
Dig Depth 93.3 in
Maximum Blade Depth 10.4 in
Maximum Blade Height 10.6 in
Maximum Dig Height 139.8 in
Maximum Dump Clearance 100.8 in
Maximum Reach 152.4 in
Maximum Reach - Ground Level 149.6 in
Minimum Ground Clearance Below Undercarriage 5.9 in
Note *Overall Shipping Length depends on blade position during shipment.
O/A Shipping Height 90.6 in
O/A Undercarriage Length 62.6 in
Overall Shipping Length* 146.5 in
Stick Length 37.8 in
Swing Bearing - Height 17.4 in
Tail Swing 39.2 in
Track Belt/Shoe Width 9.1 in
Track Width - Expanded 51.18 in
Track Width - Retracted 39 in
Vertical Wall 72.8 in

Hydraulic System

Auxiliary Circuit - Primary - Flow 8.7 gal/min
Auxiliary Circuit - Primary - Pressure 3553.4 psi
Auxiliary Circuit - Secondary - Flow 3.7 gal/min
Auxiliary Circuit - Secondary - Pressure 3553.4 psi
Digging Force - Bucket 4406.3 lbf
Digging Force - Stick - Long 2203.1 lbf
Digging Force - Stick - Standard 2540.3 lbf
Operating Pressure - Equipment 3553.4 psi
Operating Pressure - Swing 2132.1 psi
Operating Pressure - Travel 3553.4 psi
Pump Flow at 2,400 rpm 17.4 gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump

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)

Service Refill Capacities

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

Sound

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

Weight Increase from Minimum Configuration

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

Swing System

Machine Swing Speed 9.8 r/min

Sustainability

Recyclability 95%

Download resources

301.8 Small Product Brochure (Global except China and Japan)
Options And Accessories Kit Guide for Mini Hydraulic Excavators
Cat Attachments for Mini Excavators Brochure
Attachment Compatibility Guide for Mini Excavators
Cat Mini Hydraulic Excavators Product Line Brochure (North America)
Cat Mini Hydraulic Excavators Product Line Brochure (Europe)

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