305E2 CR Mini Excavator

305E2 CR Mini Hydraulic Excavator

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.

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
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 uti...
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·SSM 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
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 through appropriate engine rating to meet all operational needs as required.
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
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
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·SSM 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 easier, and a travel alarm. All of these safety features are standard on the E2 model lineup (travel alarm optional in Europe).

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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Dig Depth
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Operating Weight
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