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309 CR Mini Hydraulic Excavator

309 CR Mini Hydraulic Excavator

At a Glance

Net Power
70.3 HP
Operating Weight
20731 lb
Dig Depth
181 in
Engine Model
Cat C3.3B
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Overview

Engine

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Net Power 70.3HP
Engine Model Cat C3.3B
Bore 3.7in
Displacement 203in³
Gross Power - ISO 14396 74.3HP
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5HP
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3HP
Stroke 4.7in

Weights

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Operating Weight 20731lb
Maximum Operating Weight with Cab** 21091lb
Minimum Operating Weight with Cab* 19735lb
Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

Dimensions - Long Stick

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Dig Depth 181in
Boom In Reach 127in
Boom Swing - Left 24in
Boom Swing - Right 37in
Cab Height 100in
Ground Clearance 13.5in
Maximum Blade Depth 26in
Maximum Blade Height 14in
Maximum Dig Height 279in
Maximum Dump Clearance 202in
Maximum Reach 301in
Maximum Reach - Ground Level 293in
O/A Shipping Length 268in
O/A Track Width 97in
O/A Undercarriage Length 126in
Stick Length 93in
Swing Bearing - Height 31in
Tail Swing with Counterweight 65in
Tail Swing without Counterweight 57in
Track Belt/Shoe Width 18in
Transport Height 99in
Vertical Wall 132in

Blade

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Height 17in
Width - Standard 97in
Width - Wide 104in

Swing System

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Boom Swing - Left 60 degrees
Boom Swing - Right 50 degrees
Machine Swing Speed 10.6r/min

Air Conditioning System

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Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Certification - Cab

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Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level II)

Dimensions - Standard Stick

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Boom In Reach 120in
Boom Swing - Left 24in
Boom Swing - Right 37in
Cab Height 100in
Dig Depth 160in
Ground Clearance 14in
Maximum Blade Depth 26in
Maximum Blade Height 14in
Maximum Dig Height 149in
Maximum Dump Clearance 189in
Maximum Reach 281in
Maximum Reach - Ground Level 273in
O/A Shipping Length 265in
O/A Track Width 97in
O/A Undercarriage Length 126in
Stick Length 72in
Swing Bearing - Height 31in
Tail Swing with Counterweight 65in
Tail Swing without Counterweight 57in
Track Belt/Shoe Width 18in
Transport Height 98in
Vertical Wall 116in

Hydraulic System

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Auxiliary Circuit - Primary (High Flow) - Flow 37gal/min
Auxiliary Circuit - Primary (High Flow) - Pressure 4134psi
Auxiliary Circuit - Secondary - Flow 9gal/min
Auxiliary Circuit - Secondary - Pressure 4134psi
Digging Force - Bucket 13943lb
Digging Force - Stick - Long 8023lb
Digging Force - Stick - Standard 9500lb
Operating Pressure - Equipment 4134psi
Operating Pressure - Swing 3626psi
Operating Pressure - Travel 4134psi
Pump Flow at 2,400 rpm 62gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

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Cooling System 2.6gal (US)
Engine Oil 3gal (US)
Fuel Tank 39gal (US)
Hydraulic System 29gal (US)
Hydraulic Tank 14gal (US)

Sound

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Average Exterior Sound Pressure (ISO 6395:2008) 99dB(A)
Note European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008) 72dB(A)

Specifications

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Note The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR with a Standard Undercarriage, please refer to the 308 CR information.

Travel System

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Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 5.4psi
Ground Pressure - Minimum Weight 5psi
Maximum Traction Force - High Speed 6497lb
Maximum Traction Force - Low Speed 19064lb
Travel Speed - High 3.1mile/h
Travel Speed - Low 1.6mile/h

Weight Increase from Minimum Configuration

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Counterweight 552lb
Long Stick 146lb
Steel Tracks with Pads 728lb