THIS IS MY SELECT
Mini Excavators
309 CR VAB Mini Hydraulic Excavator
Net Power
70.3 HP
Operating Weight
20,731 lb
Dig Depth
154.8 in
THIS IS MY SELECT
backhoe loader
309 CR VAB Mini Hydraulic Excavator
Net Power
70.3 HP
Operating Weight
20,731 lb
Dig Depth
154.8 in
Specifications
The Cat ® 309 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.
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Operating Pressure - Swing
3,626 psi
250 bar
Digging Force - Stick - Long
8,023 lb
35.7 kN
Operating Pressure - Travel
4,134 psi
285 bar
Auxiliary Circuit - Primary (High Flow) - Flow
37 gal/min
140 l/min
Pump Flow at 2,400 rpm
62 gal/min
233 l/min
Digging Force - Bucket
13,943 lb
62 kN
Operating Pressure - Equipment
4,134 psi
285 bar
Auxiliary Circuit - Secondary - Flow
9 gal/min
33 l/min
Auxiliary Circuit - Primary (High Flow) - Pressure
4,134 psi
285 bar
Type
93.0 in
93.0 mm
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard
9,500 lb
42.3 kN
Auxiliary Circuit - Secondary - Pressure
4,134 psi
285 bar
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Air Conditioning
93.0 in
93.0 mm
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.
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Tip Over Protective Structure (TOPS)
93.0 in
93.0 mm
ISO 12117:1997
Roll Over Protective Structure (ROPS)
93.0 in
93.0 mm
ISO 12117-2:2008
Top Guard
93.0 in
93.0 mm
ISO 10262:1998 (Level II)
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Maximum Reach - Ground Level
293.8 in
7,462 mm
Boom Swing - Right
37 in
935 mm
Dig Depth
183.1 in
4,650 mm
Tail Swing with Counterweight
64.8 in
1,645 mm
Stick Length
92.8 in
2,358 mm
Tail Swing without Counterweight
57.1 in
1,450 mm
Maximum Dump Clearance
199.4 in
5,065 mm
Boom Swing - Left
24 in
604 mm
Swing Bearing - Height
28.7 in
729 mm
Maximum Dig Height
276.8 in
7,032 mm
O/A Shipping Length
262.3 in
6,662 mm
Maximum Blade Depth
26.9 in
684 mm
Track Belt/Shoe Width
17.7 in
450 mm
Vertical Wall
134.3 in
3,411 mm
Maximum Blade Height
13.5 in
342 mm
Cab Height
99 in
2,514 mm
Ground Clearance
13.5 in
343 mm
Transport Height
99 in
2,514 mm
Boom In Reach
126.6 in
3,215 mm
Maximum Reach
300.7 in
7,637 mm
O/A Undercarriage Length
126 in
3,200 mm
O/A Track Width
97.2 in
2,470 mm
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Boom In Reach
120.4 in
3,058 mm
Tail Swing with Counterweight
64.8 in
1,645 mm
Dig Depth
162 in
4,115 mm
Stick Length
71.8 in
1,823 mm
Boom Swing - Right
37 in
935 mm
O/A Undercarriage Length
126 in
3,200 mm
Vertical Wall
118 in
2,998 mm
O/A Shipping Length
259 in
6,578 mm
Maximum Blade Height
13.5 in
342 mm
Swing Bearing - Height
28.7 in
729 mm
Maximum Blade Depth
26.9 in
684 mm
Maximum Dump Clearance
187.1 in
4,753 mm
Tail Swing without Counterweight
57.1 in
1,450 mm
Ground Clearance
13.5 in
343 mm
O/A Track Width
97.2 in
2,470 mm
Boom Swing - Left
24 in
604 mm
Maximum Reach
281.1 in
7,140 mm
Maximum Dig Height
264.9 in
6,729 mm
Track Belt/Shoe Width
17.7 in
450 mm
Transport Height
97.9 in
2,487 mm
Cab Height
99 in
2,514 mm
Maximum Reach - Ground Level
273.6 in
6,951 mm
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Dig Depth
154.8 in
3,931 mm
Maximum Blade Depth
26.9 in
684 mm
Tail Swing without Counterweight
57.1 in
1,450 mm
Boom Swing Left
24 in
604 mm
Overall Track Width
97.2 in
2,470 mm
Vertical Wall
133.6 in
3,394 mm
Ground Clearance
13.5 in
343 mm
Overall Shipping Length
227.2 in
5,771 mm
Maximum Dump Clearance
143.4 in
3,643 mm
Boom in Reach
112.3 in
2,853 mm
Cab Height
99 in
2,514 mm
Tail Swing with Counterweight
64.8 in
1,645 mm
Maximum Reach at Ground Level
252.1 in
6,403 mm
Swing Bearing Height
31.4 in
798 mm
Overall Undercarriage Length
126 in
3,200 mm
Boom Swing Right
37 in
935 mm
Track Belt/Shoe Width
17.7 in
450 mm
Maximum Blade Height
13.5 in
342 mm
Stick Length
71.8 in
1,823 mm
Maximum Reach
260.3 in
6,612 mm
Transport Height
99.6 in
2,530 mm
Maximum Dig Height
216.3 in
5,494 mm
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Maximum Blade Depth
26.9 in
684 mm
Dig Depth
136.5 in
3,468 mm
Track Belt/Shoe Width
17.7 in
450 mm
Maximum Reach
311 in
7,900 mm
Tail Swing without Counterweight
57.1 in
1,450 mm
Maximum Reach at Ground Level
304.4 in
7,732 mm
Maximum Dig Height
321.7 in
8,171 mm
Boom Swing Left
24 in
604 mm
Overall Undercarriage Length
126 in
3,200 mm
Transport Height
96.5 in
2,452 mm
Stick Length
71.8 in
1,823 mm
Overall Shipping Length
281.8 in
7,158 mm
Maximum Dump Clearance
251.6 in
6,390 mm
Boom Swing Right
37 in
935 mm
Swing Bearing Height
31.4 in
798 mm
Vertical Wall
138.7 in
3,524 mm
Boom in Reach
117.9 in
2,995 mm
Cab Height
99 in
2,514 mm
Ground Clearance
13.5 in
343 mm
Overall Track Width
97.2 in
2,470 mm
Maximum Blade Height
13.5 in
342 mm
Tail Swing with Counterweight
64.8 in
1,645 mm
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Net Power
70.3 HP
52.4 kW
Engine Model
93.0 in
93.0 mm
Cat C3.3B
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269
71.5 HP
53.3 kW
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269
70.3 HP
52.4 kW
Stroke
4.7 in
120 mm
Bore
3.7 in
94 mm
Displacement
203 in³
3.33 l
Gross Power - ISO 14396
74.3 HP
55.4 kW
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Height
17 in
431 mm
Width - Wide
103.9 in
2,640 mm
Width - Standard
97.2 in
2,470 mm
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Hydraulic System
28 gal (US)
107 l
Fuel Tank
39 gal (US)
147 l
Hydraulic Tank
14 gal (US)
53 l
Engine Oil
3 gal (US)
11.2 l
Cooling System
2.6 gal (US)
10 l
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Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A)
99 dB(A)
Operator Sound Pressure (ISO 6396:2008)
72 dB(A)
72 dB(A)
Note
93.0 in
93.0 mm
European Union Directive “2000/14/EC”
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Note
93.0 in
93.0 mm
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.
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Machine Swing Speed
10.6 r/min
10.6 r/min
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Travel Speed - Low
1.6 mile/h
2.6 km/h
Travel Speed - High
3.1 mile/h
4.9 km/h
Maximum Traction Force - Low Speed
19,064 lb
84.8 kN
Ground Pressure - Maximum Weight
6 psi
40.8 kPa
Gradeability - Maximum
93.0 in
93.0 mm
30 degrees
Maximum Traction Force - High Speed
6,497 lb
28.9 kN
Ground Pressure - Minimum Weight
6 psi
38 kPa
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Counterweight
552 lb
250 kg
Steel Tracks with Pads
728 lb
330 kg
Long Stick
146 lb
66 kg
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Operating Weight
20,731 lb
9,403 kg
Note
93.0 in
93.0 mm
*Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Minimum Operating Weight with Cab*
19,304 lb
8,756 kg
Maximum Operating Weight with Cab*
21,054 lb
9,550 kg
Maximum Operating Weight with Cab**
20,731 lb
9,403 kg
Note (1)
93.0 in
93.0 mm
*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2)
93.0 in
93.0 mm
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
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ENGINE
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Extended Life Coolant, –37° C (–35° F)
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Ecology Drain
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Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
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Automatic Two Speed Travel
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Automatic Engine Shutdown
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Radial Seal – Double Element Air Filter
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Automatic Swing Brake
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Automatic Engine Idle
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Fuel Water Separator with Indicator
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HYDRAULICS
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Case Drain Line
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Hydraulic Temperature Monitoring
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Hydro Advanced Hydraulic Oil
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Certified Accumulator
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Power On Demand
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Variable Displacement Piston Pump
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Load Sensing/Flow Sharing Hydraulics
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Smart Tech Electronic Pump
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OPERATOR ENVIRONMENT
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Rear Window Emergency Exit
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Assisted Front Window Overhead Storage
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12V Power Socket
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Travel Pedals and Hand Levers
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Travel Cruise Control
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LED Interior Light
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Coat Hook
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Cat Key with Passcode Option
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Fabric, High Back, Suspension Seat
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Stick Steer Mode
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ROPS – ISO 12117-2:2008
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Removable, Washable Floor Mat
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Literature Holder
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Color LCD Monitor – Fuel Level and Coolant Temperature Gauges – Maintenance and Machine Monitoring – Performance and Machine Adjustments – Numeric Security Code – Multiple Languages – Camera Ready – Hour Meter with Wake Up Switch – Jog Dial Control Interface
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Mounting Bosses for Top and Front Guards
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Sealed and Pressurized Cab
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Radio – Bluetooth®, USB, Auxiliary, Microphone
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Skylight
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Integrated Lower Front Window
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HVAC with Automatic Temperature Control
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Retractable Seat Belt (75 mm/3 in)
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TOPS – ISO 12117:1997
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Top Guard – ISO 10262:1998 (Level II)
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Cup Holder
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Hydraulic Lockout Controls
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Control Pattern Changer
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Operator Sound Pressure 72 dB(A) ISO 6396:2008
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Molded Footrests
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Adjustable Wrist Rests
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UNDERCARRIAGE
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Tie Down Eyes on Track Frame
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Dozer Blade
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Dozer Float
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Bolt-on, Reversible Wear Edge
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Steel Tracks (450 mm/17.7 in wide)
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Hydraulic Track Adjusters
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Greased and Lubricated Track
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BOOM, STICK AND LINKAGES
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Variable Angle Boom
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Standard Stick (1823 mm/71.8 in)
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Front Shovel Capable (Pin-On/Manual Coupler/Hydraulic Coupler – not available in all regions)
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Thumb Ready (not available in all regions)
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Certified Lifting Eye (not available in all regions)
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ELECTRICAL
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12 Volt Electrical System
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90 Ampere Alternator
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850 CCA Maintenance Free Battery
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Circuit Breaker
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Ignition Key Stop Switch
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Signaling/Warning Horn
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Product Link™ Elite Lite (regulations apply)
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OPERATOR ENVIRONMENT
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Air Suspension Heated Seat
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Rain Visor
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ELECTRICAL
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Rearview Camera
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Rotating Beacon
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OTHER
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Boom and Stick Hose Burst Check Valves
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Bucket Linkage with Lift Eye
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Track Guides
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Attachments including Buckets, Augers and Hammers
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Wide Steel Tracks (600 mm/23.6 in)
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2nd Auxiliary Hydraulic Lines
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Wide Dozer Blade
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Additional Counterweight
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Water Jacket Heater
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Refueling Pump
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Cab Guarding
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Travel Alarm (standard in some regions)
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WHY CHOOSE EMPIRE
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Every purchase backed by a full menu of service and support offerings
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Flexible financing options designed to fit your budget
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Commitment to providing expert training to maximize operations
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Value Agreements to ensure proper maintenance and performance