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303.5E2 CR

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Overview

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 23.5 HP 17.5 kW
  • Engine Model Cat® C1.7 Cat® C1.7
  • Gross Power 24.8 HP 18.5 kW
  • Bore 3.4 in 87.0 mm
  • Displacement 104.0 in³ 1.7 l
  • Stroke 3.6 in 92.4 mm
  • Rated Net Power - ISO 9249 23.5 HP 17.5 kW
  • Net Power - ISO 9249 23.5 HP 17.5 kW
  • Note Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards. Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.

Weights

  • Operating Weight 8209.0 lb 3723.0 kg
  • Operating Weight - With Cab 8209.0 lb 3723.0 kg
  • Operating Weight - With Canopy 7803.0 lb 3539.0 kg
  • Note Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines. Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.

Travel System

  • Ground Pressure 4.6 psi 31.7 kPa
  • Travel Speed - Low 2.0 mile/h 3.2 km/h
  • Maximum Traction Force - High Speed 3822.0 lbf 17.0 kN
  • Travel Speed - High 2.9 mile/h 4.6 km/h
  • Maximum Traction Force - Low Speed 6992.0 lbf 31.1 kN

Hydraulic System

  • Operating Pressure - Equipment 3553.0 psi 245.0 bar
  • Digging Force - Stick - Standard 4249.0 lbf 18.9 kN
  • Pump Flow at 2,200 rpm 26.4 gal/min 100.0 l/min
  • Operating Pressure - Travel 3553.0 psi 245.0 bar
  • Operating Pressure - Swing 3132.0 psi 216.0 bar
  • Digging Force - Stick - Long 3799.0 lbf 16.9 kN
  • Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
  • Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
  • Maximum Auxiliary Circuit - Secondary - Flow at Pump 6.6 gal/min 25.0 l/min
  • Maximum Auxiliary Circuit - Primary - Pressure at Pump 3553.0 psi 24500.0 kPa
  • Maximum Auxiliary Circuit - Primary - Flow at Pump 15.9 gal/min 60.0 l/min
  • Maximum Auxiliary Circuit - Secondary - Pressure at Pump 3553.0 psi 24500.0 kPa
  • Digging Force - Bucket 7419.0 lbf 33.0 kN

Swing System

  • Machine Swing Speed 10.0 r/min 10.0 r/min
  • Boom Swing - Left - With Stop 55° 55°
  • Swing - Right 50° 50°
  • Boom Swing - Left - Without Stop 80° 80°

Blade

  • Width 70.0 in 1780.0 mm
  • Height 13.0 in 325.0 mm
  • Dig Depth 19.0 in 470.0 mm
  • Lift Height 16.0 in 400.0 mm

Service Refill Capacities

  • Cooling System 1.5 gal (US) 5.5 l
  • Engine Oil 1.8 gal (US) 7.0 l
  • Hydraulic Tank 11.2 gal (US) 42.3 l
  • Fuel Tank 12.2 gal (US) 46.0 l
  • Hydraulic System 17.2 gal (US) 65.0 l

Operating Specifications

  • Maximum Dig Depth 125.0 in 3180.0 mm

Operator Station

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Operation and Hydraulic Control

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Engine

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COMPASS Control Panel

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Compact Radius Design

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Undercarriage

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Dozer Blade

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Coupler and Work Tool Options

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Serviceability and Support

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303.5E2 CR 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

303.5E2 CR 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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