303.5E2 CR Hydraulic Excavator

The Cat E2 Series Mini Hydraulic Excavators are designed to carry on the solid performance of their E Series predecessors, while adding even greater value for the customer. The new High Definition Hydraulic (HDH) System, redesigned operator station and enhanced digital control panel specially designed for Cat Mini Excavators – COMPASS (Complete, Operation, Maintenance, Performance And Security System) – are all standard features that improve performance and increase value.

Engine
Net Power
23.5HP
Engine Model
Cat® C1.7
Gross Power
24.8HP
Bore
3.4in
Displacement
104in³
Stroke
3.6in
Rated Net Power - ISO 9249
23.5HP
Net Power - ISO 9249
23.5HP
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Weights
Operating Weight
8209lb
Operating Weight - With Cab
8209lb
Operating Weight - With Canopy
7803lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Specifications
Maximum Dig Depth
125in
Swing System
Machine Swing Speed
10r/min
Boom Swing - Left - With Stop
55°
Swing - Right
50°
Boom Swing - Left - Without Stop
80°
Blade
Width
70in
Height
13in
Dig Depth
19in
Lift Height
16in
Service Refill Capacities
Cooling System
1.5gal (US)
Engine Oil
1.8gal (US)
Hydraulic Tank
11.2gal (US)
Fuel Tank
12.2gal (US)
Hydraulic System
17.2gal (US)
Travel System
Ground Pressure
4.6psi
Travel Speed - Low
2mile/h
Maximum Traction Force - High Speed
3822lbf
Travel Speed - High
2.9mile/h
Maximum Traction Force - Low Speed
6992lbf
Hydraulic System
Operating Pressure - Equipment
3553psi
Digging Force - Stick - Standard
4249lbf
Pump Flow at 2,200 rpm
26.4gal/min
Operating Pressure - Travel
3553psi
Operating Pressure - Swing
3132psi
Digging Force - Stick - Long
3799lbf
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Secondary - Flow at Pump
6.6gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
3553psi
Maximum Auxiliary Circuit - Primary - Flow at Pump
15.9gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
3553psi
Digging Force - Bucket
7419lbf

Standard Equipment:

Engine
  • Cat C1.7 Tier 4 Final diesel engine
  • Automatic engine idle
  • Automatic engine shut-off
  • Automatic two speed travel
  • Fuel and water separator
 
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
  • 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, 300 mm (12 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
  • 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 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), 300 mm (12 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
 

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