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.
Engine
- Net Power
- 21HP
- Engine Model
- C1.1
- Displacement
- 69in³
- 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
- Bore
- 3in
Weights
- Operating Weight
- 4473lb
- Maximum Operating Weight with Canopy**
- 4211lb
- 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
Dimensions - Long Stick
- Dig Depth
- 101.2in
- Maximum Dump Clearance
- 103.9in
- Maximum Dig Height
- 142.5in
- Boom Swing - Left
- 65°
- Maximum Blade Height
- 10.6in
- Maximum Blade Depth
- 10.4in
- Boom Swing - Right
- 50°
- Boom In Reach
- 55.9in
- Boom Height - Shipping Position
- 40.2in
- 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
- Maximum Reach - Ground Level
- 155.9in
- Minimum Ground Clearance Below Undercarriage
- 5.9in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Maximum Reach
- 158.7in
- Tail Swing
- 39.2in
- Track Belt/Shoe Width
- 9.1in
- Track Width - Expanded
- 51.18in
- Track Width - Retracted
- 39in
- Vertical Wall
- 76.4in
Blade
- Height
- 8.9in
- Width*
- 39in
- Note
- *Expanded – 1300 mm (51 in)
Sustainability
- Recyclability
- 95%
Certification - Cab and Canopy
- Top Guard
- ISO 10262:1998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12117:1997
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
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)
- Hydraulic System
- 6.9gal (US)
- Hydraulic Tank
- 4.8gal (US)
- Fuel Tank
- 6.9gal (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
- Long Stick
- 18lb
- Steel Tracks
- 110lb
- Expandable Undercarriage
- 271lb
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 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)
