New | 305E2 CR Mini Hydraulic Excavator

The Cat® 305E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.

Net Power40.2 HP
Engine ModelCat® C2.4
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/126940.2 HP
Displacement146 in³
Stroke4 in
Bore3.4 in
Gross Power - ISO 1439641.8 HP
EmissionsMeets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Operating Weight11443 lb
Weight - Canopy, Standard Stick10970 lb
Weight - Cab, Long Stick11443 lb
Weight - Cab, Standard Stick11334 lb
Weight - Canopy, Long Stick11069 lb
Note*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Travel System
Maximum Traction Force - High Speed5418 lb
Travel Speed - Low1.7 mile/h
Travel Speed - High2.7 mile/h
Maximum Traction Force - Low Speed10161 lb
Gradeability - Maximum30°
Ground Pressure - Cab4.4 psi
Ground Pressure - Canopy4.3 psi
Hydraulic System
Digging Force - Stick - Standard5550 lb
Operating Pressure - Equipment3553 psi
Digging Force - Stick - Long4788 lb
Pump Flow at 2,400 rpm39.6 gal/min
Operating Pressure - Swing3132 psi
Auxiliary Circuit - Primary (186 bar/2,734 psi)21.1 gal/min
Operating Pressure - Travel3553 psi
Auxiliary Circuit - Secondary (174 bar/2,524 psi)6.6 gal/min
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Bucket10050 lb
Swing System
Machine Swing Speed10 r/min
Boom Swing - Left - With Stop*60°
Boom Swing - Right50°
Boom Swing - Left - Without Stop*80°
Note*Automatic swing brake, spring applied, hydraulic release.
Width78 in
Height14.8 in
Dig Depth21.9 in
Lift Height15.9 in
Service Refill Capacities
Cooling System2.8 gal (US)
Engine Oil2.5 gal (US)
Hydraulic Tank18 gal (US)
Fuel Tank16.6 gal (US)
Hydraulic System20.6 gal (US)
Dimensions - Long Stick
Dig Depth144 in
O/A Track Width78 in
Boom Height - Shipping Position85 in
Maximum Blade Height16 in
O/A Shipping Height100 in
Maximum Dump Clearance154 in
Swing Bearing - Height24 in
O/A Undercarriage Length102 in
Maximum Reach235 in
Vertical Wall104 in
Boom In Reach100 in
O/A Shipping Length208 in
Maximum Blade Depth22 in
Boom Swing - Left27 in
Tail Swing43 in
Track Belt/Shoe Width16 in
Maximum Reach - Ground Level229 in
Boom Swing - Right31 in
Maximum Dig Height214 in
Dimensions - Standard Stick
O/A Shipping Height100 in
Maximum Blade Depth22 in
Maximum Reach - Ground Level210 in
Boom Swing - Right31 in
O/A Undercarriage Length102 in
O/A Track Width78 in
Maximum Blade Height16 in
Maximum Dump Clearance129 in
O/A Shipping Length204 in
Vertical Wall91 in
Boom Height - Shipping Position69 in
Boom In Reach93 in
Swing Bearing - Height24 in
Tail Swing43 in
Maximum Reach220 in
Maximum Dig Height207 in
Dig Depth129 in
Boom Swing - Left27 in
Track Belt/Shoe Width16 in
Lift Capacities at Ground Level - Lift Point Radius: 4000 mm (13'1”)
Blade Up - Front1676 lb
Blade Up - Side1257 lb
Blade Down - Side1411 lb
Blade Down - Front2778 lb
Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)
Blade Down - Side2646 in
Blade Down - Front5159 lb
Blade Up - Side2359 in
Blade Up - Front3197 lb
Track Roller TypeCenter Flange
Number of Carrier Rollers1
Number of Track Rollers4
Certification - Cab and Canopy
Top GuardISO 10262 (Level I)
Roll Over Protective Structure (ROPS)ISO 12117-2
Tip Over Protective Structure (TOPS)ISO 12117
Note*European Union Directive “2000/14/EC”
Exterior Sound Power Level - ISO 6395:2008*96 dB(A)
Dynamic Operator Sound Pressure Level (ISO 6396:2008)81 dB(A)
Operating Specifications
Stick Length - Long67 in
Stick Length - Standard52 in
Air Conditioning System
Air ConditioningThe air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.4 metric tonnes.

The Durable Hoods And Frame And The Compact Radius Design Of The 305e2 Let You Work Comfortably And Confidently In Confined Areas. The Operator Environment Includes A High Quality Suspension Seat, Easy To Adjust Armrests And 100% Pilot Controls Which Offer Consistent And Long-Lasting Controllability.

High Definition Hydraulic System Provides A Load Sensing And Flow Sharing Capability Leading To Operational Precision, Efficient Performance And Greater Controllability. Power On Demand Provides Optimal Efficiency And Performance The Moment You Need It. This Automatic System Ensures Fuel Efficiency Through Appropriate Engine Rating To Meet All Operational Needs As Required.

Broad Range Of Cat Work Tools Make The Cat Mini Excavator A Versatile Machine Able To Meet The Requirements Of Any Job Site. Over 200 Degrees Of Bucket Rotation Provides Greater Material Retention During Truck Loading And Easier Flat Wall Digging Without Having To Reposition The Machine.

Front Shovel Bucket Orientation Provides The Operator With More Ways To Get The Job Done Faster. Compass Control Panel Is A Standard Feature That Allows The Operator To Easily Adjust Auxiliary Flows To Achieve The Optimal Work Tool Performance, Activate Auto Idle For Improved Fuel Efficiency And Utilize The Security System To Ensure Protection Of Valuable Assets With The Simple Touch Of A Button. The Site Reference System Included In The Compass Monitor Provides Output From Pitch And Roll Sensors To Aid In Grading And Level Trenching. This Impacts Accuracy And Productivity For Job Site Finishing.

Convenient Service And Maintenance Requirements Include Ease Of Access To Daily Check Points, 500 Hour Engine Oil And Filter Change Period, 500 Hour Grease Interval On Front Implement, S·o·ssm Oil Sampling Valve And Overall Long Term Durability.

All Cat Mini Excavators From 3.5 Metric Tons To 8 Metric Tons Are Rops, Tops And Top Guard Level 1 Certified And Include The Cat Interlock (hydraulic Lockout) System, A Certified Accumulator Which Allows For Auxiliary Pressure To Be Released, Making Connecting And Disconnecting Work Tools Safer And Easier, And A Travel Alarm. All Of These Safety Features Are Standard On The E2 Model Lineup (travel Alarm Optional In Europe).

Standard Equipment

  • Cat C2.4 diesel engine (meets U.S. EPA Tier 4 Final emission standards for North America and EU Stage IIIA/Tier 4 Interim emission standards for all other regions)
  • Automatic engine idle
  • Automatic engine shut-off
  • Automatic two speed travel
  • Diesel Particulate Filter (North America only)
  • Diesel Oxidation Catalyst (North America only)
  • Fuel and water separator
  • Power on demand
  • 1-way and 2-way (combined function)
  • Accumulator
  • Automatic swing parking brake
  • Auxiliary hydraulic lines
  • Adjustable auxiliary relief
  • Auxiliary line quick disconnects
  • Cat interlock system: hydraulic lockout
  • Continuous auxiliary flow
  • Ecology drain
  • Hydraulic oil cooler
  • High definition hydraulics
  • Load sensing/flow sharing
  • 100% pilot control ergonomic joysticks
  • Adjustable armrests
  • COMPASS: complete, operation, maintenance, performance and security system
    • Multiple languages
  • Cup holder
  • Hydraulic neutral lockout bar
  • Literature holder
  • Pattern changer (optional in Europe)
  • Site reference system: leveling
  • Tool storage area
  • Travel control pedals with hand levers
  • Washable floor mat
  • Dozer blade with float function
  • Track, rubber belt, 400 mm (16 in) width
  • Tie down eyes on track frame
  • Towing eye on base frame
  • 200 degree bucket rotation
  • Certified lifting eye on bucket linkage (optional in Europe)
  • Front shovel capable
  • Thumb ready stick
  • 12 volt electrical system
  • 60 ampere alternator
  • 650 CCA maintenance free battery
  • Fuse box
  • Ignition key start/stop switch
  • Slow blow fuse
  • Warning horn
  • Boom light with time delay capability
  • Anti-theft system (COMPASS)
  • Caterpillar Corporate “One Key” System
  • Door locks
  • Lockable fuel cap
  • Retractable seat belt
  • Roll Over Protective Structure (ROPS) (ISO 12117-2)
  • Tip Over Protective Structure (TOPS) (ISO 12117)
  • Top guard – ISO 10262 (Level 1)
  • Travel alarm (optional in Europe)
  • Product Link™

Optional Equipment

  • Engine block heater
  • Quick coupler lines
  • Boom lowering check valve
  • Stick lowering check valve
  • Secondary auxiliary hydraulic lines
  • Cab:
    • Air conditioning
    • Heat
    • High back suspension seat
    • Interior light
    • Interlocking front window system
    • Radio
    • Windshield wiper
  • Power angle blade
  • Track, double grouser (steel), 400 mm (16 in)
  • Track, double grouser (steel) with rubber pad, 400 mm (16 in)
  • Quick coupler: manual or hydraulic
  • Thumb
  • Buckets
  • Full range of performance matched work tools
    • Auger, hammer, ripper
  • Light, cab with time delay capability
  • Mirror, canopy right
  • Mirror, canopy left
  • Mirror, cab rear
  • Battery disconnect
  • Beacon socket
  • Front wire mesh guard
  • Rearview camera
  • Vandal guard





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