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301.8 Mini Hydraulic Excavator

301.8 Mini Hydraulic Excavator

At a Glance

Net Power
21 HP
Operating Weight
4473 lb
Dig Depth
101.2 in
Engine Model
C1.1
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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.

Engine

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Net Power 21HP
Engine Model C1.1
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
Displacement 69in³
Bore 3in
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

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Operating Weight 4473lb
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.
Minimum Operating Weight with Canopy* 3803lb
Maximum Operating Weight with Canopy** 4211lb
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

Dimensions - Long Stick

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

Blade

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

Weight Increase from Minimum Configuration

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

Travel System

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

Swing System

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Machine Swing Speed 9.8r/min

Sound

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

Service Refill Capacities

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

Hydraulic System

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

Dimensions - Standard Stick

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

Certification - Cab and Canopy

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