Big EOFY Savings on Cat Compact machines until 30 June 2026. T&Cs apply. View Promotion

Big EOFY Savings on Cat Compact machines until 30 June 2026. T&Cs apply. View Promotion

309 CR VAB Mini Hydraulic Excavator

309 CR VAB

Mini Excavators
The Cat® 308 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.
Net Power
69 hp/51.2 kW
Engine Model
Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
69 hp/51.2 kW
Gross Power - ISO 14396
74.3 hp/55.4 kW

Key Features

Specifications

Metric | Imperial
Engine Expand Collapse
Net Power
69 hp 51.2 kW
Engine Model
Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
69 hp 51.2 kW
Gross Power - ISO 14396
74.3 hp 55.4 kW
Bore
3.5 in 90 mm
Stroke
4.3 in 110 mm
Displacement
171 in³ 2.8 l
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Note (1)
Advertised power is tested per the specified standard in effect at thetime of manufacture.
Note (2)
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Operating Weight
22094 lb 10020 kg
Minimum Operating Weight with Standard Stick*
20264 lb 9190 kg
Maximum Operating Weight with Standard Stick**
22094 lb 10020 kg
Note (1)
Advertised power is tested per the specified standard in effect at thetime of manufacture.
Note (2)
Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Counterweight
552 lb 250 kg
Counterweight (extra)
1103 lb 500 kg
Standard Stick
77 lb 35 kg
Steel Tracks with Pads
728 lb 330 kg
Travel Speed - High
2.9 mile/h 4.7 km/h
Travel Speed - Low
1.6 mile/h 2.6 km/h
Maximum Traction Force - High Speed
7419 lbf 33 kN
Maximum Traction Force - Low Speed
19064 lbf 84.8 kN
Ground Pressure - Minimum Weight
5.2 psi 35.6 kPa
Ground Pressure - Maximum Weight
5.6 psi 38.9 kPa
Gradeability - Maximum
30 degrees
Height
17 in 431 mm
Width - Standard
97.2 in 2470 mm
Width - Wide
103.9 in 2640 mm
Cooling System
2.6 gal (US) 10 l
Engine Oil
2.3 gal (US) 8.8 l
Fuel Tank
39 gal (US) 147 l
Hydraulic Tank
14 gal (US) 53 l
Hydraulic System
29 gal (US) 110 l
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm
62 gpm 233 L/min
Operating Pressure - Equipment
4134 psi 285 bar
Operating Pressure - Travel
4134 psi 285 bar
Operating Pressure - Swing
3626 psi 250 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump
37 gpm 140 L/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134 psi 285 bar
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9 gpm 33 L/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134 psi 285 bar
Digging Force - Stick - Standard
9509 lbf 42.3 kN
Digging Force - Bucket
13946 lbf 62 kN
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Machine Swing Speed
10 r/min 10 r/min
Boom Swing - Left
60 degrees
Boom Swing - Right
50 degrees
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Top Guard
ISO 10262:1998 (Level I)
Dig Depth
150.2 in 3815 mm
Vertical Wall
99.2 in 2520 mm
Maximum Reach at Ground Level
248 in 6300 mm
Maximum Reach
256.5 in 6515 mm
Maximum Dig Height
205.5 in 5220 mm
Maximum Dump Clearance
135.8 in 3450 mm
Boom in Reach
122.8 in 3120 mm
Tail Swing with Counterweight
62.4 in 1585 mm
Tail Swing without Counterweight
57.1 in 1450 mm
Maximum Blade Height
16.1 in 408 mm
Maximum Blade Depth
19.1 in 484 mm
Cab Height
100 in 2541 mm
Swing Bearing Height
29.8 in 756 mm
Overall Undercarriage Length
126 in 3200 mm
Overall Shipping Length
255.7 in 6495 mm
Boom Swing Right
37 in 935 mm
Boom Swing Left
24 in 605 mm
Track Belt/Shoe Width
17.7 in 450 mm
Overall Track Width
97.2 in 2470 mm
Ground Clearance
14 in 356 mm
Stick Length
71.7 in 1820 mm
Dig Depth
150.2 in 3815 mm
Vertical Wall
99.2 in 2520 mm
Maximum Reach at Ground Level
248 in 6300 mm
Maximum Reach
256.5 in 6515 mm
Maximum Dig Height
205.5 in 5220 mm
Maximum Dump Clearance
135.8 in 3450 mm
Boom in Reach
122.8 in 3120 mm
Tail Swing with Counterweight
62.4 in 1585 mm
Tail Swing without Counterweight
57.1 in 1450 mm
Maximum Blade Height
16.1 in 408 mm
Maximum Blade Depth
19.1 in 484 mm
Cab Height
100 in 2541 mm
Swing Bearing Height
29.8 in 756 mm
Overall Undercarriage Length
126 in 3200 mm
Overall Shipping Length
255.7 in 6495 mm
Boom Swing Right
37 in 935 mm
Boom Swing Left
24 in 605 mm
Track Belt/Shoe Width
17.7 in 450 mm
Overall Track Width
97.2 in 2470 mm
Ground Clearance
14 in 356 mm
Stick Length
71.7 in 1820 mm
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).
Operator Sound Pressure (ISO 6396:2008)
72 dB(A) 72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A) 99 dB(A)
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Recyclability
96%
Note
Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.

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