309 CR VAB Mini Hydraulic Excavator

309 CR VAB Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

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More Comfort – More Performance – More Versatility

4 Industry First Features

Cat Exclusives in a Mini Excavator
Up to 10% Lower Total Ownership Costs

with improved fuel efficiency and longer service intervals
Up to 20% More Performance

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

Specifications

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

Engine

Bore	3.7 in
Displacement	203 in³
Engine Model - U.S. EPA Tier 4 Final/EU Stage V	Cat C3.3B
Gross Power - SAE J1995	74.3 hp
Net Power	69.5 hp
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC	69.5 hp
Note	Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Stroke	4.7 in

Weights

Maximum Operating Weight*	21477 lb
Minimum Operating Weight*	20121 lb
Note (1)	*Minimum Weight is based on rubber 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, standard stick, blade and no bucket.
Operating Weight	21477 lb

Weight Increase from Minimum Configuration

Counterweight	552 lb
Standard Stick	77 lb
Steel Tracks with Pads	728 lb

Travel System

Gradeability - Maximum	30 degrees
Ground Pressure - Maximum Weight	5.5 psi
Ground Pressure - Minimum Weight	5.1 psi
Maximum Traction Force - High Speed	6497 lbf
Maximum Traction Force - Low Speed	19064 lbf
Travel Speed - High	3.1 mile/h
Travel Speed - Low	1.6 mile/h

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)

Hydraulic System

Digging Force - Bucket	13946 lbf
Digging Force - Stick - Standard	9509 lbf
Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump	37 gal/min
Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump	4134 psi
Maximum Auxiliary Circuit - Primary - Flow at Pump	35 gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump	4134 psi
Maximum Auxiliary Circuit - Secondary - Flow at Pump	9 gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump	4134 psi
Note	Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
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

Swing System

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

Blade

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

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)

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)

Dimensions - VAB In

Boom Swing Left	24 in
Boom Swing Right	37 in
Boom in Reach	122.8 in
Cab Height	100 in
Dig Depth	150.2 in
Ground Clearance	14 in
Maximum Blade Depth	19.1 in
Maximum Blade Height	16.1 in
Maximum Dig Height	205.5 in
Maximum Dump Clearance	135.8 in
Maximum Reach	256.5 in
Maximum Reach at Ground Level	248 in
Overall Shipping Length	255.7 in
Overall Track Width	97.2 in
Overall Undercarriage Length	126 in
Stick Length	71.7 in
Swing Bearing Height	29.8 in
Tail Swing with Counterweight	62.4 in
Tail Swing without Counterweight	57.1 in
Track Belt/Shoe Width	17.7 in
Transport Height	97.4 in
Vertical Wall	99.2 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.

Dimensions - VAB Out

Boom Swing Left	24 in
Boom Swing Right	37 in
Boom in Reach	106.7 in
Cab Height	100 in
Dig Depth	136.2 in
Ground Clearance	14 in
Maximum Blade Depth	19.1 in
Maximum Blade Height	16.1 in
Maximum Dig Height	322 in
Maximum Dump Clearance	247.4 in
Maximum Reach	310.4 in
Maximum Reach at Ground Level	303.7 in
Overall Shipping Length	255.7 in
Overall Track Width	97.2 in
Overall Undercarriage Length	126 in
Stick Length	71.7 in
Swing Bearing Height	29.8 in
Tail Swing with Counterweight	62.4 in
Tail Swing without Counterweight	57.1 in
Track Belt/Shoe Width	17.7 in
Transport Height	97.4 in
Vertical Wall	146.7 in