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305E2 CR Mini Hydraulic Excavator

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Overview

The Cat® 305E2 CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.

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QUALITY

The durable hoods and frame and the compact radius design of the 305E2 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...

EFFICIENCY

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 ...

VERSATILITY

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.

PERFORMANCE

SERVICEABILITY

Convenient service and maintenance requirements include ease of access to daily check points, 500 hour engine oil and filter change period, 50 hour grease interval on front implement, S·O·S^SM oil sampling valve and overall long term durability.

SAFETY

All Cat Mini Excavators from 3.5 metric tons to 10 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...

QUALITY

EFFICIENCY

VERSATILITY

PERFORMANCE

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.

SERVICEABILITY

SAFETY

Hydraulic System

Maximum Auxiliary Circuit - Primary - Pressure at Pump: 3553psi
Maximum Auxiliary Circuit - Secondary - Pressure at Pump: 3553psi
Maximum Auxiliary Circuit - Primary - Flow at Pump: 21.1gal/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump: 6.6gal/min
Note: Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Digging Force - Bucket: 10050lb
Digging Force - Stick - Long: 4788lb
Pump Flow at 2,400 rpm: 39.6gal/min
Operating Pressure - Travel: 3553psi
Operating Pressure - Swing: 3132psi
Operating Pressure - Equipment: 3553psi
Auxiliary Circuit - Primary (186 bar/2,734 psi): 21.1gal/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi): 6.6gal/min
Digging Force - Stick - Standard: 5550lb

Engine

Note: The Cat C2.4 meets U.S. EPA Tier 4 Final emission standards for North America, EU Stage V emission standards for Europe and Tier 4 Interim emission standards for all other regions.
Engine Model: Cat C2.4
Gross Power - ISO 14396: 41.8HP
Bore: 3.4in
Stroke: 4in
Displacement: 146in³
Net Power - 2,200 rpm - ISO 9249/EEC 80/1269: 40.2HP
Net Power: 40.2HP

Lift Capacities at Ground Level - Lift Point Radius: 4000 mm (13'1”)

Blade Down - Side: 1411lb
Blade Up - Front: 1676lb
Blade Up - Side: 1257lb
Blade Down - Front: 2778lb

Dimensions - Standard Stick

Tail Swing: 43in
Maximum Dig Height: 207in
Boom Height - Shipping Position: 69in
Vertical Wall: 91in
O/A Shipping Height: 100in
Boom In Reach: 93in
Maximum Reach - Ground Level: 210in
Maximum Dump Clearance: 129in
Dig Depth: 129in
Swing Bearing - Height: 24in
O/A Shipping Length: 204in
Maximum Reach: 220in
O/A Undercarriage Length: 102in
Track Belt/Shoe Width: 16in
Maximum Blade Height: 16in
O/A Track Width: 78in
Boom Swing - Right: 31in
Maximum Blade Depth: 22in
Boom Swing - Left: 27in

Dimensions - Long Stick

Dig Depth: 144in
Boom Height - Shipping Position: 85in
Boom In Reach: 100in
Boom Swing - Right: 31in
Maximum Dig Height: 214in
Vertical Wall: 104in
Track Belt/Shoe Width: 16in
Maximum Blade Depth: 22in
O/A Shipping Height: 100in
O/A Undercarriage Length: 102in
Swing Bearing - Height: 24in
Maximum Blade Height: 16in
Maximum Reach: 235in
Boom Swing - Left: 27in
O/A Track Width: 78in
O/A Shipping Length: 208in
Maximum Reach - Ground Level: 229in
Tail Swing: 43in
Maximum Dump Clearance: 154in

Operating Specifications

Stick Length - Long: 67in
Stick Length - Standard: 52in

Service Refill Capacities

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

Blade

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

Swing System

Machine Swing Speed: 10r/min

Travel System

Travel Speed - Low: 1.7mile/h
Travel Speed - High: 2.7mile/h
Maximum Traction Force - High Speed: 5418lb
Maximum Traction Force - Low Speed: 10161lb
Ground Pressure - Canopy: 4.3psi
Ground Pressure - Cab: 4.4psi

Weights*

Weight - Canopy, Standard Stick: 10970lb
Operating Weight: 11443lb
Weight - Cab, Standard Stick: 11334lb
Weight - Canopy, Long Stick: 11069lb
Weight - Cab, Long Stick: 11443lb

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

Blade Up - Front: 3197lb
Blade Down - Front: 5159lb
Blade Down - Side: 2646in
Blade Up - Side: 2359in

Cab

Exterior Sound Power Level - ISO 6395:2008*: 96dB(A)
Dynamic Operator Sound Pressure Level (ISO 6396:2008): 81dB(A)

Standard/Optional Features

Standard Equipment:

Engine
- Cat C2.4 diesel engine (meets U.S. EPA Tier 4 Final emission standards for North America, EU Stage V emission standards for Europe and 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)
Technology
- Product Link^™

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

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305E2 CR Mini Hydraulic Excavator

Overview