305.5E2 CR Mini Hydraulic Excavator

305.5E2 CR Mini Hydraulic Excavator with Swing Boom

305.5E2 CR Mini Hydraulic Excavator

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.

Product Specs

Weights*

Operating Weight
11958lb
Weight - Canopy, Standard Stick
11503lb
Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Weight - Cab, Long Stick
11958lb
Weight - Cab, Standard Stick
11863lb
Weight - Canopy, Long Stick
11596lb

Travel System

Maximum Traction Force - High Speed
6025lb
Maximum Traction Force - Low Speed
10746lb
Travel Speed - High
2.8mile/h
Travel Speed - Low
1.7mile/h
Gradeability - Maximum
30°
Ground Pressure - Cab
4.6psi
Ground Pressure - Canopy
4.5psi

Hydraulic System

Operating Pressure - Equipment
3553psi
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
3132psi
Digging Force - Stick - Standard
6500lb
Digging Force - Stick - Long
5575lb
Auxiliary Circuit - Primary (186 bar/2,734 psi)
21.1gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)
6.6gal/min
Pump Flow at 2,400 rpm
39.6gal/min
Digging Force - Bucket
11445lb
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Blade

Height
14.8in
Dig Depth
21.9in
Lift Height
15.9in
Width
78in

Lift Capacities at Ground Level - Lift Point Radius: 4500 mm (14'9”)

Blade Down - Front
3042lb
Blade Up - Front
1808lb
Blade Down - Side
1521lb
Blade Up - Side
1367lb

Engine

Engine Model
Cat® C2.4
Net Power
44.1HP
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/1269
44.1HP
Bore
3.4in
Displacement
146in³
Stroke
4in
Emissions
Meets U.S. EPA Tier 4 Final/EU Stage IIIA emission standards.
Gross Power - ISO 14396
45.7HP

Swing System

Machine Swing Speed
10r/min
Boom Swing - Left - With Stop*
60°
Boom Swing - Left - Without Stop*
80°
Boom Swing - Right
50°
Note
*Automatic swing brake, spring applied, hydraulic release.

Service Refill Capacities

Cooling System
2.8gal (US)
Engine Oil
2.5gal (US)
Fuel Tank
16.6gal (US)
Hydraulic System
20.6gal (US)
Hydraulic Tank
18gal (US)

Cab

Dynamic Operator Sound Pressure Level (ISO 6396:2008)
81dB(A)
Exterior Sound Power Level - ISO 6395:2008*
97dB(A)
Note
*European Union Directive “2000/14/EC”

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2
Tip Over Protective Structure (TOPS)
ISO 12117
Top Guard
ISO 10262 (Level I)

Dimensions - Long Stick

Boom Height - Shipping Position
85in
Boom In Reach
100in
Boom Swing - Left
27in
Boom Swing - Right
31in
Dig Depth
152in
Maximum Blade Depth
22in
Maximum Blade Height
16in
Maximum Dig Height
220in
Maximum Dump Clearance
161in
Maximum Reach
243in
Maximum Reach - Ground Level
237in
O/A Shipping Height
100in
O/A Shipping Length
215in
O/A Track Width
78in
O/A Undercarriage Length
102in
Swing Bearing - Height
24in
Tail Swing
44in
Track Belt/Shoe Width
16in
Vertical Wall
107in

Dimensions - Standard Stick

Boom Height - Shipping Position
69in
Boom In Reach
94in
Boom Swing - Left
27in
Boom Swing - Right
31in
Dig Depth
137in
Maximum Blade Depth
22in
Maximum Blade Height
16in
Maximum Dig Height
210in
Maximum Dump Clearance
150in
Maximum Reach
228in
Maximum Reach - Ground Level
222in
O/A Shipping Height
100in
O/A Shipping Length
210in
O/A Track Width
78in
O/A Undercarriage Length
102in
Swing Bearing - Height
24in
Tail Swing
44in
Track Belt/Shoe Width
16in
Vertical Wall
92in

Lift Capacities at Ground Level - Lift Point Radius: 3000 mm (9'8”)

Blade Down - Front
5710lb
Blade Down - Side
2844lb
Blade Up - Front
3417lb
Blade Up - Side
2535lb

Operating Specifications

Counterweight
364.4lb
Stick Length - Long
70in
Stick Length - Standard
55in

Undercarriage

Number of Carrier Rollers
3
Number of Track Rollers
3
Track Roller Type
Triple Flange

Worktool Attachments

Equipment

  • Engine
    • 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
  • Hydraulic System
    • 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
  • Operator Environment
    • 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
  • Undercarriage
    • Dozer blade with float function
    • Track, rubber belt, 400 mm (16 in) width
    • Tie down eyes on track frame
    • Towing eye on base frame
  • Front Linkage
    • 200 degree bucket rotation
    • Certified lifting eye on bucket linkage (optional in Europe)
    • Front shovel capable
    • Thumb ready stick
  • Electrical
    • 12 volt electrical system
    • 60 ampere alternator
    • 650 CCA maintenance free battery
    • Fuse box
    • Ignition key start/stop switch
    • Slow blow fuse
    • Warning horn
  • Lights And Mirrors
    • Boom light with time delay capability
  • Safety And Security
    • 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)

Optional Equipment

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

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