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303.5E2 CR

Mini Excavators

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.

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Net Power 17.5 kW
Engine Model Cat® C1.7
Gross Power 18.5 kW
Operating Weight 3723 kg
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303.5E2 CR
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OVERVIEW

Big Performance in a Mini Excavator

FEATURES & BENEFITS

Operator Station

Comfortable Working EnvironmentThe high quality suspension seat, 76 mm (3 in) retractable seat belt, easy to adjust armrests, and ergonomic layout provide superior comfor... Read more

Operation and Hydraulic Control

Powerful Digging, Precise ControlThe new High Definition Hydraulic (HDH) System in the E2 machines provides a load sensing and flow sharing capability leading to operatio... Read more

Engine

EngineEach of the E2 models is equipped with the engine solution to best support the power and performance required based on the weight class and application. Also, stand... Read more

COMPASS Control Panel

UNLOCK the new features and experience the value of the exclusive COMPASS control panel on the E2 Series compact excavatorsThe COMPASS control panel on the Cat E2 Series... Read more

Compact Radius Design

Compact RadiusThe compact radius design gives greater machine versatility and the capability to work within confined areas. This allows the operator to concentrate on the... Read more

Undercarriage

Rubber TrackThe standard rubber track lets you work on multiple surfaces such as grass, pavement or stone without damaging the surface or machine.Steel Track OptionOption... Read more

Dozer Blade

Simple Dozer Control with Float FunctionThe dozer function is pilot controlled from inside the cab, providing smooth, proportional operation. The standard float function... Read more

Coupler and Work Tool Options

CouplersThe E2 Series is available with a mechanical pin-grabber or a hydraulic pin-grabber quick coupler option. The coupler design uses a wedge to keep the tool secure... Read more

Serviceability and Support

Easy ServiceExtended service intervals, durable components, and ease of service access points decrease your owning and operating costs while increasing your long-term val... Read more

SPECIFICATIONS FOR 303.5E2 CR

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Engine
Net Power 17.5 kW
Engine Model Cat® C1.7
Gross Power 18.5 kW
Bore 87 mm
Displacement 1.7 l
Stroke 92.4 mm
Rated Net Power - ISO 9249 17.5 kW
Net Power - ISO 9249 17.5 kW
Note Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Weights
Operating Weight 3723 kg
Operating Weight - With Cab 3723 kg
Operating Weight - With Canopy 3539 kg
Note Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Travel System
Travel Speed - Low 3.2 km/h
Maximum Traction Force - High Speed 17 kN
Travel Speed - High 4.6 km/h
Maximum Traction Force - Low Speed 31.1 kN
Ground Pressure 31.7 kPa
Hydraulic System
Operating Pressure - Equipment 245 bar
Digging Force - Stick - Standard 18.9 kN
Pump Flow at 2,200 rpm 100 l/min
Operating Pressure - Travel 245 bar
Operating Pressure - Swing 216 bar
Digging Force - Stick - Long 16.9 kN
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 25 l/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump 24500 kPa
Maximum Auxiliary Circuit - Primary - Flow at Pump 60 l/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 24500 kPa
Digging Force - Bucket 33 kN
Swing System
Machine Swing Speed 10 r/min
Boom Swing - Left - With Stop 55°
Swing - Right 50°
Boom Swing - Left - Without Stop 80°
Blade
Width 1780 mm
Height 325 mm
Dig Depth 470 mm
Lift Height 400 mm
Service Refill Capacities
Cooling System 5.5 l
Engine Oil 7 l
Hydraulic Tank 42.3 l
Fuel Tank 46 l
Hydraulic System 65 l
Operating Specifications
Maximum Dig Depth 3180 mm

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Operating Weight 2990 kg
Bucket Capacity 0.09 m³
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Displacement 2.4 l
Bore 87 mm
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