SPECS SUMMARY

Engine ModelCat® C2.4
Net Power44.1 HP (32.9 kW)
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/126944.1 HP (32.9 kW)
Operating Weight11958 lb (5423 kg)
The Cat® 305.5E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.


Specifications

Engine ModelCat® C2.4
Net Power44.1 HP (32.9 kW)
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/126944.1 HP (32.9 kW)
Operating Weight11958 lb (5423 kg)
Weight - Canopy, Standard Stick11503 lb (5217 kg)
Bore3.4 in (87 mm)
Displacement146 in³ (2.4 l)
Stroke4 in (102.4 mm)
Maximum Traction Force - High Speed6025 lb (26.8 kN)
Maximum Traction Force - Low Speed10746 lb (47.8 kN)
Travel Speed - High2.8 mile/h (4.5 km/h)
Travel Speed - Low1.7 mile/h (2.8 km/h)
Auxiliary Circuit - Primary (186 bar/2,734 psi)21.1 gal/min (80 l/min)
Auxiliary Circuit - Secondary (174 bar/2,524 psi)6.6 gal/min (25 l/min)
Digging Force - Stick - Long5575 lb (24.8 kN)
Digging Force - Stick - Standard6500 lb (28.9 kN)
Operating Pressure - Equipment3553 psi (245 bar)
Operating Pressure - Swing3132 psi (216 bar)
Operating Pressure - Travel3553 psi (245 bar)
Pump Flow at 2,400 rpm39.6 gal/min (150 l/min)
Machine Swing Speed10 r/min (10 r/min)
Boom Swing - Left - With Stop*60°
Boom Swing - Left - Without Stop*80°
Boom Swing - Right50°
Width78 in (1980 mm)
Height14.8 in (375 mm)
Dig Depth21.9 in (555 mm)
Lift Height15.9 in (405 mm)
Cooling System2.8 gal (US) (10.5 l)
Engine Oil2.5 gal (US) (9.5 l)
Fuel Tank16.6 gal (US) (63 l)
Hydraulic System20.6 gal (US) (78 l)
Hydraulic Tank18 gal (US) (68.3 l)
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.
Dynamic Operator Sound Pressure Level (ISO 6396:2008)81 dB(A) (81 dB(A))
Exterior Sound Power Level - ISO 6395:2008*97 dB(A) (97 dB(A))
Note*European Union Directive “2000/14/EC”
Roll Over Protective Structure (ROPS)ISO 12117-2
Tip Over Protective Structure (TOPS)ISO 12117
Top GuardISO 10262 (Level I)
Boom Height - Shipping Position85 in (2150 mm)
Boom In Reach100 in (2530 mm)
Boom Swing - Left27 in (695 mm)
Boom Swing - Right31 in (785 mm)
Dig Depth152 in (3870 mm)
Maximum Blade Depth22 in (555 mm)
Maximum Blade Height16 in (405 mm)
Maximum Dig Height220 in (5590 mm)
Maximum Dump Clearance161 in (4080 mm)
Maximum Reach243 in (6170 mm)
Maximum Reach - Ground Level237 in (6020 mm)
O/A Shipping Height100 in (2550 mm)
O/A Shipping Length215 in (5460 mm)
O/A Track Width78 in (1980 mm)
O/A Undercarriage Length102 in (2580 mm)
Swing Bearing - Height24 in (615 mm)
Tail Swing44 in (1130 mm)
Track Belt/Shoe Width16 in (400 mm)
Vertical Wall107 in (2730 mm)
Boom Height - Shipping Position69 in (1740 mm)
Boom In Reach94 in (2400 mm)
Boom Swing - Left27 in (695 mm)
Boom Swing - Right31 in (785 mm)
Dig Depth137 in (3470 mm)
Maximum Blade Depth22 in (555 mm)
Maximum Blade Height16 in (405 mm)
Maximum Dig Height210 in (5330 mm)
Maximum Dump Clearance150 in (3820 mm)
Maximum Reach228 in (5790 mm)
Maximum Reach - Ground Level222 in (5630 mm)
O/A Shipping Height100 in (2550 mm)
O/A Shipping Length210 in (5330 mm)
O/A Track Width78 in (1980 mm)
O/A Undercarriage Length102 in (2580 mm)
Swing Bearing - Height24 in (615 mm)
Tail Swing44 in (1130 mm)
Track Belt/Shoe Width16 in (400 mm)
Vertical Wall92 in (2330 mm)
EmissionsMeets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Gross Power - ISO 1439645.7 HP (34.1 kW)
Digging Force - Bucket11445 lb (50.9 kN)
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
Blade Down - Front5710 lb (2590 kg)
Blade Down - Side2844 lb (1290 kg)
Blade Up - Front3417 lb (1550 kg)
Blade Up - Side2535 lb (1150 kg)
Blade Down - Front3042 lb (1380 kg)
Blade Down - Side1521 lb (690 kg)
Blade Up - Front1808 lb (820 kg)
Blade Up - Side1367 lb (620 kg)
Counterweight364.4 lb (165.3 kg)
Stick Length - Long70 in (1820 mm)
Stick Length - Standard55 in (1420 mm)
Note*Automatic swing brake, spring applied, hydraulic release.
Gradeability - Maximum30°
Ground Pressure - Cab4.6 psi (31.9 kPa)
Ground Pressure - Canopy4.5 psi (31 kPa)
Number of Carrier Rollers1
Number of Track Rollers4
Track Roller TypeCenter Flange
Note*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Weight - Cab, Long Stick11958 lb (5423 kg)
Weight - Cab, Standard Stick11863 lb (5380 kg)
Weight - Canopy, Long Stick11596 lb (5259 kg)

Benefits and Features

The durable hoods and frame and the compact radius design of the 305.5E2 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)
  • 1-way and 2-way (combined function)
  • 100% pilot control ergonomic joysticks
  • Dozer blade with float function
  • 200 degree bucket rotation
  • 12 volt electrical system
  • Boom light with time delay capability
  • Anti-theft system (COMPASS)
  • Product Link™

Optional Equipment

  • Engine block heater
  • Quick coupler lines
  • Cab:
    • Air conditioning
    • Heat
    • High back suspension seat
    • Interior light
    • Interlocking front window system
    • Radio
    • Windshield wiper
  • Power angle blade
  • Quick coupler: manual or hydraulic
  • Light, cab with time delay capability
  • Battery disconnect
  • Counterweight, extra