309 CR VAB Mini Hydraulic Excavator

Overview

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.

Key Features

More Comfort. More Performance. More Versatility.

Up To 10% Lower Total Cost of Ownership*

with improved fuel efficiency and longer service intervals.

* Versus previous models.

ALWAYS STANDARD

• Stick Steer

• Cruise Control

• Advanced Touchscreen Monitor

• VisionLink™ Connect

Up To 20% More Performance*

with customizable operator settings and improvements in lift, swing, travel and multifunction.

* Versus previous models.

Media Gallery

Specifications

Net Power	69 hp
Engine Model	Cat® C2.8 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC	69 hp
Gross Power - ISO 14396	74.3 hp
Bore	3.5 in
Stroke	4.3 in
Displacement	171 in³
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
Minimum Operating Weight with Standard Stick*	20264 lb
Maximum Operating Weight with Standard Stick**	22094 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, (500 kg/1,103 lb) counterweight, operator, full fuel tank, standard stick, blade, and no bucket.

Counterweight	552 lb
Counterweight (extra)	1103 lb
Standard Stick	77 lb
Steel Tracks with Pads	728 lb

Travel Speed - High	2.9 mile/h
Travel Speed - Low	1.6 mile/h
Maximum Traction Force - High Speed	7419 lbf
Maximum Traction Force - Low Speed	19064 lbf
Ground Pressure - Minimum Weight	5.2 psi
Ground Pressure - Maximum Weight	5.6 psi
Gradeability - Maximum	30 degrees

Height	17 in
Width - Standard	97.2 in
Width - Wide	103.9 in

Cooling System	2.6 gal (US)
Engine Oil	2.3 gal (US)
Fuel Tank	39 gal (US)
Hydraulic Tank	14 gal (US)
Hydraulic System	29 gal (US)

Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm	62 gpm
Operating Pressure - Equipment	4134 psi
Operating Pressure - Travel	4134 psi
Operating Pressure - Swing	3626 psi
Maximum Auxiliary Circuit - Primary - Flow at Pump	37 gpm
Maximum Auxiliary Circuit - Primary - Pressure at Pump	4134 psi
Maximum Auxiliary Circuit - Secondary - Flow at Pump	9 gpm
Maximum Auxiliary Circuit - Secondary - Pressure at Pump	4134 psi
Digging Force - Stick - Standard	9509 lbf
Digging Force - Bucket	13946 lbf
Note	Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Machine Swing Speed	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
Vertical Wall	99.2 in
Maximum Reach at Ground Level	248 in
Maximum Reach	256.5 in
Maximum Dig Height	205.5 in
Maximum Dump Clearance	135.8 in
Boom in Reach	122.8 in
Tail Swing with Counterweight	62.4 in
Tail Swing without Counterweight	57.1 in
Maximum Blade Height	16.1 in
Maximum Blade Depth	19.1 in
Cab Height	100 in
Swing Bearing Height	29.8 in
Overall Undercarriage Length	126 in
Overall Shipping Length	255.7 in
Boom Swing Right	37 in
Boom Swing Left	24 in
Track Belt/Shoe Width	17.7 in
Overall Track Width	97.2 in
Ground Clearance	14 in
Stick Length	71.7 in

Dig Depth	136.2 in
Vertical Wall	146.7 in
Maximum Reach at Ground Level	303.7 in
Maximum Reach	310.4 in
Maximum Dig Height	322 in
Maximum Dump Clearance	247.4 in
Boom in Reach	106.7 in
Tail Swing with Counterweight	62.4 in
Tail Swing without Counterweight	57.1 in
Maximum Blade Height	16.1 in
Maximum Blade Depth	19.1 in
Cab Height	100 in
Swing Bearing Height	29.8 in
Overall Undercarriage Length	126 in
Overall Shipping Length	255.7 in
Boom Swing Right	37 in
Boom Swing Left	24 in
Track Belt/Shoe Width	17.7 in
Overall Track Width	97.2 in
Ground Clearance	14 in
Stick Length	71.7 in

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).

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).