Mini Excavators
Cat 306 CR
Operating Weight
6,410kg
Power
43.2kW (57.9hp)
Width
1980mm

A HUGE LIFT IN PERFORMANCE
This larger and more powerful 306 CR delivers a massive 67% increased lift capacity, compared to the 305.5 E2CR. You’ll discover Next Gen technology including stick steer and cruise control, Bluetooth-enabled keyless start and LCD monitor. Plus, you’ll love the sealed and pressurised cab with heating and aircon.
67% INCREASED LIFT CAPACITY*
27% MORE POWER*
PACKED WITH NEXT GEN TECHNOLOGY
Specifications
Operating Weight
6,410kg
Power
43.2kW (57.9hp)
Width
1980mm
Bucket Breakout
51.5kN
Dig Depth
3,710mm
Specifications
Engine
Bore
87mm
Displacement
2.43l
Engine Model
Cat C2.4 Turbo
Gross Power - ISO 14396
43.2kW
Net Power
41.7kW
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
41.7kW
Stroke
102.4mm
Weights
Maximum Operating Weight with Cab**
7150kg
Maximum Operating Weight with Canopy**
7090kg
Minimum Operating Weight with Cab*
6470kg
Minimum Operating Weight with Canopy*
6410kg
Note (1)
*Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
Note (2)
**Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
Operating Weight
7150kg
Weight Increase from Minimum Configuration
Angle Blade
102kg
Counterweight
250kg
Long Stick
44kg
Steel Tracks with Pads
375kg
XTC Carriage (no tool)
64kg
Travel System
Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
39.1kPa
Ground Pressure - Minimum Weight
35.4kPa
Maximum Traction Force - High Speed
31kN
Maximum Traction Force - Low Speed
56kN
Travel Speed - High
5km/h
Travel Speed - Low
2.8km/h
Service Refill Capacities
Cooling System
10l
Engine Oil
8l
Fuel Tank
130l
Hydraulic System
104l
Hydraulic Tank
53l
Hydraulic System
Auxiliary Circuit - Primary - Flow
90l/min
Auxiliary Circuit - Primary - Pressure
24500kPa
Auxiliary Circuit - Secondary - Flow
33l/min
Auxiliary Circuit - Secondary - Pressure
24500kPa
Digging Force - Bucket
51.5kN
Digging Force - Stick - Long
26.5kN
Digging Force - Stick - Standard
29.5kN
Operating Pressure - Equipment
24500kPa
Operating Pressure - Swing
22500kPa
Operating Pressure - Travel
24500kPa
Pump Flow at 2,400 rpm
151l/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Swing System
Boom Swing - Left
60 degrees
Boom Swing - Right
65 degrees
Machine Swing Speed
11r/min
Blade
Angle Blade Height
400mm
Angle Blade Width
1980mm
Straight Blade Height
390mm
Straight Blade Width
1980mm
Certification - Cab
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)
Sound
Average Exterior Sound Pressure (ISO 6395:2008)
99dB(A)
Note
European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008)
72dB(A)
Dimensions - Standard Stick
Boom In Reach
2485mm
Boom Swing - Left
735mm
Boom Swing - Right
910mm
Cab Height
2545mm
Dig Depth
3710mm
Ground Clearance
306mm
Maximum Blade Depth
600mm
Maximum Blade Height
415mm
Maximum Dig Height
5835mm
Maximum Dump Clearance
4325mm
Maximum Reach
6295mm
Maximum Reach - Ground Level
6130mm
O/A Shipping Length
5975mm
O/A Track Width
1980mm
O/A Undercarriage Length
2580mm
Stick Length
1580mm
Swing Bearing - Height
672mm
Tail Swing with Counterweight
1475mm
Tail Swing without Counterweight
1350mm
Track Belt/Shoe Width
400mm
Transport Height
1755mm
Vertical Wall
2710mm
Width over Upper House
1950mm
Dimensions - Long Stick
Boom In Reach
2960mm
Boom Swing - Left
735mm
Boom Swing - Right
910mm
Cab Height
2545mm
Dig Depth
4110mm
Ground Clearance
306mm
Maximum Blade Depth
600mm
Maximum Blade Height
415mm
Maximum Dig Height
6130mm
Maximum Dump Clearance
4610mm
Maximum Reach
6685mm
Maximum Reach - Ground Level
6535mm
O/A Shipping Length
5950mm
O/A Track Width
1980mm
O/A Undercarriage Length
2580mm
Stick Length
1980mm
Swing Bearing - Height
672mm
Tail Swing with Counterweight
1475mm
Tail Swing without Counterweight
1350mm
Track Belt/Shoe Width
400mm
Transport Height
2410mm
Vertical Wall
3165mm
Width over Upper House
1950mm
Air Conditioning System
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.
GALLERY

How does the 306 CR Compare?
-
Excavators Cat 306 CR
Operating Weight6,410kgPower43.2kW (57.9hp)Width1980mmSELECTED MODEL -
Excavators Cat 305 CR
Operating Weight4,975kgPower31.2kW (42.4hp)Width1,980mm -
Excavators Cat 308 CR
Operating Weight8,146kgPower55.4kW (75.3hp)Width2,300mm
NEXT GENERATION MINI EXCAVATOR FEATURES
The range of Cat Mini Excavators bring big machine features, standard across all models from 1.5 to 10 tonne.
The range of Next Generation machines, inspired by you
Next Gen Mini Excavator Stick Steer and Cruise Control
Keyless start and up to 50 programmable operator codes
Next Gen LCD monitor
Sealed and pressurised cab, keeping heat, dust and noise out
Adjustable hydraulics and operator modes for improved accuracy