301.5 Mini Hydraulic Excavator
301.5 Mini Hydraulic Excavator
301.5 Mini Hydraulic Excavator
301.5 Mini Hydraulic Excavator

The Cat® 301.5 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

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Net Power 21 HP
Engine Model C1.1
Displacement 69 in³
Stroke 3.2 in
Bore 3 in
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note Net power is tested per ISO 9249:2007 and 80/1269/EEC.
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.
Note (1) Engine power is tested per ISO 14396:2002.
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 21 HP
Gross Power - SAE J1995:2014 21.6 HP
Operating Weight 3913 lb
Minimum Operating Weight with Canopy* 3483 lb
Note (1) *Minimum Weight is based on rubber tracks, operator, fixed undercarriage and full fuel tank.
Maximum Operating Weight with Canopy** 3913 lb
Note (2) **Maximum Weight is based on steel tracks, operator, expandable undercarriage and full fuel tank.
EU: CE Plate Weight*** 3836 lb
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.
Dig Depth 100 in
Maximum Blade Height 10.8 in
Stick Length 45.7 in
Boom Height - Shipping Position 40.9 in
Maximum Reach 155.9 in
Maximum Dig Height 137.4 in
Note *Overall Shipping Length depends on blade position during shipment.
Tail Swing 32.3 in
O/A Undercarriage Length 57.5 in
Track Width - Expanded 51.18 in
Boom In Reach 57.1 in
O/A Shipping Height 90.9 in
Maximum Blade Depth 10.2 in
Maximum Reach - Ground Level 153.1 in
Overall Shipping Length* 141.3 in
Maximum Dump Clearance 98.8 in
Swing Bearing - Height 17.5 in
Minimum Ground Clearance Below Undercarriage 6.1 in
Boom Swing - Left 65 °
Vertical Wall 74.4 in
Track Width - Retracted 39 in
Track Belt/Shoe Width 9.1 in
Boom Swing - Right 50 °
Height 8.9 in
Note *Expanded – 1300 mm (51 in)
Width* 39 in
Swing Bearing - Height 17.5 in
O/A Undercarriage Length 57.5 in
Maximum Reach - Ground Level 146.9 in
Boom Swing - Left 65 °
Maximum Reach 149.6 in
O/A Shipping Height 90.9 in
Maximum Blade Depth 10.2 in
Minimum Ground Clearance Below Undercarriage 6.1 in
Vertical Wall 70.9 in
Dig Depth 92.1 in
Track Width - Expanded 51.18 in
Track Belt/Shoe Width 9.1 in
Stick Length 37.8 in
Maximum Dig Height 135 in
Overall Shipping Length* 142.5 in
Boom In Reach 57.5 in
Maximum Blade Height 10.8 in
Maximum Dump Clearance 96.5 in
Boom Swing - Right 50 °
Note *Overall Shipping Length depends on blade position during shipment.
Boom Height - Shipping Position 42.9 in
Tail Swing 32.3 in
Track Width - Retracted 39 in
Pump Flow at 2,400 rpm 17.4 gal/min
Digging Force - Stick - Long 1616.4 lbf
Operating Pressure - Swing 1493.9 psi
Digging Force - Stick - Standard 1843.4 lbf
Auxiliary Circuit - Primary - Flow 8.7 gal/min
Auxiliary Circuit - Secondary - Pressure 3089.3 psi
Operating Pressure - Travel 3089.3 psi
Operating Pressure - Equipment 3089.3 psi
Auxiliary Circuit - Secondary - Flow 3.7 gal/min
Digging Force - Bucket 3169.8 lbf
Auxiliary Circuit - Primary - Pressure 3089.3 psi
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Maximum Traction Force - High Speed 2315.5 lbf
Ground Pressure - Minimum Weight 4 psi
Ground Pressure - Maximum Weight 4.4 psi
Travel Speed - High 2.7 mile/h
Travel Speed - Low 1.8 mile/h
Maximum Traction Force - Low Speed 3597 lbf
Gradeability - Maximum 30 degrees
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level I)
Average Exterior Sound Pressure (ISO 6395:2008) 93 dB(A)
Note European Union Directive “2000/14/EC”
Cooling System 1 gal (US)
Engine Oil 1.2 gal (US)
Hydraulic System 6.9 gal (US)
Hydraulic Tank 4.8 gal (US)
Fuel Tank 5.8 gal (US)
Machine Swing Speed 9.8 r/min
Long Stick 18 lb
Steel Tracks 126 lb
Expandable Undercarriage 284 lb

  • Adjustable wrist rests and a suspension seat option help keep you working comfortably all day long.

  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information.

  • 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!

  • 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 float features allow for easy clean up.

  • 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 are just a couple of the safety features we've built into the machine.

  • 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 canopy lets you reach additional service areas when needed.

  • 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.