301.8 Mini Hydraulic Excavator
Mini Excavators
Details
Net Power
21 HP
Operating Weight
4473 lb
Dig Depth
101.2 in
Overview
Mini Excavators Inspired by Our Customers
The Cat® 301.8 Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Benefits
Industry First Features
Cat Exclusives in a Mini Excavator
Lower Total Ownership Costs
with more common parts, lower repair costs and tilt up cab
More Performance
with programmable operator settings and faster cyle times
Features at a Glance
- ALL DAY COMFORT
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- 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
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- Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information.
- STICK STEER TRAVEL MODE
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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)
Specifications
Full Specifications
- Engine
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Net Power
21 HPEngine Model
C1.1Stroke
3.2 inBore
3 inNote (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
21 HPGross Power - SAE J1995:2014
21.6 HP
- Weights
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Operating Weight
4473 lbMaximum Operating Weight with Cab**
4473 lbMinimum Operating Weight with Canopy*
3803 lbMaximum Operating Weight with Canopy**
4211 lbMinimum Operating Weight with Cab*
4075 lbNote (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.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***
4409 lbEU: CE Plate Weight with Canopy***
4145 lb
- Dimensions - Long Stick
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Dig Depth
101.2 inStick Length
45.7 inVertical Wall
76.4 inMaximum Reach - Ground Level
155.9 inTrack Width - Expanded
51.18 inO/A Undercarriage Length
62.6 inO/A Shipping Height
90.6 inMaximum Blade Height
10.6 inOverall Shipping Length*
146.1 inTail Swing
39.2 inTrack Width - Retracted
39 inMaximum Blade Depth
10.4 inBoom In Reach
55.9 inMaximum Dump Clearance
103.9 inBoom Swing - Right
50 °Maximum Reach
158.7 inBoom Swing - Left
65 °Maximum Dig Height
142.5 inSwing Bearing - Height
17.4 inBoom Height - Shipping Position
40.2 inMinimum Ground Clearance Below Undercarriage
5.9 inNote
*Overall Shipping Length depends on blade position during shipment.Track Belt/Shoe Width
9.1 in
- Blade
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Height
8.9 inWidth*
39 inNote
*Expanded – 1300 mm (51 in)
- Travel System
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Travel Speed - Low
1.8 mile/hMaximum Traction Force - High Speed
2675.2 lbfTravel Speed - High
2.7 mile/hGround Pressure - Maximum Weight
4.3 psiMaximum Traction Force - Low Speed
4136.5 lbfGround Pressure - Minimum Weight
3.9 psiGradeability - Maximum
30 degrees
- Dimensions - Standard Stick
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Boom In Reach
55.9 inMaximum Reach - Ground Level
149.6 inMaximum Blade Depth
10.4 inStick Length
37.8 inVertical Wall
72.8 inBoom Height - Shipping Position
42.1 inTrack Width - Expanded
51.18 inOverall Shipping Length*
146.5 inMaximum Blade Height
10.6 inBoom Swing - Right
50 °Note
*Overall Shipping Length depends on blade position during shipment.Minimum Ground Clearance Below Undercarriage
5.9 inMaximum Reach
152.4 inSwing Bearing - Height
17.4 inMaximum Dig Height
139.8 inTrack Belt/Shoe Width
9.1 inTail Swing
39.2 inBoom Swing - Left
65 °Track Width - Retracted
39 inO/A Undercarriage Length
62.6 inMaximum Dump Clearance
100.8 inO/A Shipping Height
90.6 inDig Depth
93.3 in
- Hydraulic System
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Operating Pressure - Equipment
3553.4 psiAuxiliary Circuit - Secondary - Flow
3.7 gal/minDigging Force - Bucket
4406.3 lbfOperating Pressure - Travel
3553.4 psiDigging Force - Stick - Long
2203.1 lbfAuxiliary Circuit - Secondary - Pressure
3553.4 psiOperating Pressure - Swing
2132.1 psiAuxiliary Circuit - Primary - Flow
8.7 gal/minPump Flow at 2,400 rpm
17.4 gal/minType
Load Sensing Hydraulics with Variable Displacement Piston PumpDigging Force - Stick - Standard
2540.3 lbfAuxiliary Circuit - Primary - Pressure
3553.4 psi
- Certification - Cab and Canopy
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Tip Over Protective Structure (TOPS)
ISO 12117:1997Roll Over Protective Structure (ROPS)
ISO 12117-2:2008Top Guard
ISO 10262:1998 (Level I)
- Service Refill Capacities
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Cooling System
1 gal (US)Hydraulic Tank
4.8 gal (US)Engine Oil
1.2 gal (US)Fuel Tank
6.9 gal (US)Hydraulic System
6.9 gal (US)
- Sound
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Operator Sound Pressure (ISO 6396:2008)
73 dB(A)Average Exterior Sound Pressure (ISO 6395:2008)
93 dB(A)Note
European Union Directive “2000/14/EC”
- Weight Increase from Minimum Configuration
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Steel Tracks
110 lbLong Stick
18 lbExpandable Undercarriage
271 lb
- Swing System
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Machine Swing Speed
9.8 r/min
- Sustainability
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Recyclability
95%
Equipment
- Standard Equipment
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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
OPERATOR ENVIRONMENT
- Tilt-up Canopy or Tilt-Up Cab
- Top Guard ISO 10262:1998 Level I
- ROPS – ISO 12117-2:2008
- TOPS – ISO 12117:1997
- 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
- Expandable 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
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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)
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
- 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
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)