Excavators

309 CR Mini Hydraulic Excavator

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Specification Summary

Engine Model
Cat C3.3B
Net Power
70.3 HP
Operating Weight
20731 lb
Height
17 in
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Engine

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

Weights

Operating Weight
20731 lb
Maximum Operating Weight with Cab**
21091 lb
Minimum Operating Weight with Cab*
19735 lb
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.

Blade

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

Air Conditioning System

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

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 - Long Stick

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

Dimensions - Standard Stick

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

Hydraulic System

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

Service Refill Capacities

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

Sound

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

Specifications

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.

Swing System

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

Travel System

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

Weight Increase from Minimum Configuration

Counterweight
552 lb
Long Stick
146 lb
Steel Tracks with Pads
728 lb
Engine Model
Cat C3.3B
Net Power
70.3 HP
Operating Weight
20731 lb
Height
17 in
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.
Width - Standard
97 in
Width - Wide
104 in
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)
Boom In Reach
127 in
Boom Swing - Left
24 in
Boom Swing - Right
37 in
Cab Height
100 in
Dig Depth
181 in
Ground Clearance
13.5 in
Maximum Blade Depth
26 in
Maximum Blade Height
14 in
Maximum Dig Height
279 in
Maximum Dump Clearance
202 in
Maximum Reach
301 in
Maximum Reach - Ground Level
293 in
O/A Shipping Length
268 in
O/A Track Width
97 in
O/A Undercarriage Length
126 in
Stick Length
93 in
Swing Bearing - Height
31 in
Tail Swing with Counterweight
65 in
Tail Swing without Counterweight
57 in
Track Belt/Shoe Width
18 in
Transport Height
99 in
Vertical Wall
132 in
Boom In Reach
120 in
Boom Swing - Left
24 in
Boom Swing - Right
37 in
Cab Height
100 in
Dig Depth
160 in
Ground Clearance
14 in
Maximum Blade Depth
26 in
Maximum Blade Height
14 in
Maximum Dig Height
149 in
Maximum Dump Clearance
189 in
Maximum Reach
281 in
Maximum Reach - Ground Level
273 in
O/A Shipping Length
265 in
O/A Track Width
97 in
O/A Undercarriage Length
126 in
Stick Length
72 in
Swing Bearing - Height
31 in
Tail Swing with Counterweight
65 in
Tail Swing without Counterweight
57 in
Track Belt/Shoe Width
18 in
Transport Height
98 in
Vertical Wall
116 in
Bore
3.7 in
Displacement
203 in³
Gross Power - ISO 14396
74.3 HP
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269
71.5 HP
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269
70.3 HP
Stroke
4.7 in
Auxiliary Circuit - Primary (High Flow) - Flow
37 gal/min
Auxiliary Circuit - Primary (High Flow) - Pressure
4134 psi
Auxiliary Circuit - Secondary - Flow
9 gal/min
Auxiliary Circuit - Secondary - Pressure
4134 psi
Digging Force - Bucket
13943 lb
Digging Force - Stick - Long
8023 lb
Digging Force - Stick - Standard
9500 lb
Operating Pressure - Equipment
4134 psi
Operating Pressure - Swing
3626 psi
Operating Pressure - Travel
4134 psi
Pump Flow at 2,400 rpm
62 gal/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Cooling System
2.6 gal (US)
Engine Oil
3 gal (US)
Fuel Tank
39 gal (US)
Hydraulic System
29 gal (US)
Hydraulic Tank
14 gal (US)
Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A)
Note
European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008)
72 dB(A)
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.
Machine Swing Speed
10.6 r/min
Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
5.4 psi
Ground Pressure - Minimum Weight
5 psi
Maximum Traction Force - High Speed
6497 lb
Maximum Traction Force - Low Speed
19064 lb
Travel Speed - High
3.1 mile/h
Travel Speed - Low
1.6 mile/h
Counterweight
552 lb
Long Stick
146 lb
Steel Tracks with Pads
728 lb
Maximum Operating Weight with Cab**
21091 lb
Minimum Operating Weight with Cab*
19735 lb
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.
Boom Swing - Right
50 degrees
Boom Swing - Left
60 degrees