2022 Caterpillar Mini Excavators 309 CR

2022 Caterpillar Mini Excavators 309 CR

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  • Year 2022
  • Make Caterpillar
  • Model Mini Excavators
  • Engine Model: Cat C3.3B
2022 Caterpillar Mini Excavators 309 CR

2022 Caterpillar Mini Excavators 309 CR

2022 Caterpillar Mini Excavators 309 CR

OVERVIEW

The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.The 309 CR also features high flow hydraulics to handle power hungry attachments such as mulchers and brushcutters.

Features may include:

ALL DAY COMFORT
  • A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.
EASY TO OPERATE
  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.
STICK STEER TRAVEL MODE
  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A MINI DESIGN
  • Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, and dig-to-blade allows for easy clean up.
SAFETY ON THE JOB SITE
  • Your safety is our top priority. The Cat Mini Excavator is designed to help keep you safe on the job. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we’ve built into the machine.
SIMPLE SERVICE FOR LESS DOWNTIME
  • Maintenance is quick and easy on the Cat Mini Excavator. Routine check points are easy to access at ground level with grouped service points and robust service panels.
LOWER OPERATING COSTS
  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat Mini Excavator was designed with reducing your operating costs in mind.

Engine

Engine Model: Cat C3.3B
Engine Power Net: 69.5 HP | Gross - SAE J1995: 74.3 HP | Rated Net - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269: 69.5 HP
Displacement 203 in³
Stroke 4.7 in
Bore 3.7 in

Operational

Operating Conditions Gradeability - Maximum: 30 degrees | Maximum Traction Force - High Speed: 6497 lb | Maximum Traction Force - Low Speed: 19064 lb | Digging Force - Stick - Standard: 9500 lb | Digging Force - Stick - Long: 8023 lb | Digging Force - Bucket: 13943 lb
Operating Speed Travel Speed - High: 3.1 mile/h | Travel Speed - Low: 1.6 mile/h | Machine Swing: 10.6 r/min
Ground Pressure Minimum Weight: 5 psi | Maximum Weight: 5.4 psi

Performance

Noise Level Average Exterior Sound Pressure (ISO 6395:2008): 99 dB(A) | Operator Sound Pressure (ISO 6396:2008): 72 dB(A)

Hydraulics

Hydraulic Flow Pump Flow at 2,400 rpm: 62 gal/min | Maximum Auxiliary Circuit - Secondary - Flow at Pump: 9 gal/min | Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump: 37 gal/min
Maximum Pressure Operating Pressure - Swing: 3626 psi | Operating Pressure - Travel: 4134 psi | Operating Pressure - Equipment: 4134 psi | Maximum Auxiliary Circuit - Secondary - Pressure at Pump: 4134 psi | Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump: 4134 psi
Hydraulic Type Load Sensing Hydraulics with Variable Displacement Piston Pump

Dimensions

Depth, Maximum Dig Depth: 161.7 in | Maximum Blade Depth: 26 in | Dig Depth: 182.8 in | Maximum Blade Depth: 26 in
Width Blade Wide: 104 in | Blade Standard: 97 in
Height Blade: 17 in | Cab: 100 in | Swing Bearing: 29.7 in | Maximum Dig: 265.2 in | Maximum Blade: 16.1 in | Boom Transport - No Tools*: 95.7 in | Boom Working - With Tools**: 104.7 in | Maximum Blade: 16.1 in | Maximum Dig: 277.1 in | Cab: 100 in | Boom Transport - No Tools*: 89 in | Boom Working - With Tools**: 120.1 in
Lift Height
Length O/A Undercarriage: 126 in | Stick: 71.8 in | O/A Undercarriage: 126 in | Stick: 92.8 in
Dimensions Boom Swing - Right: 50 degrees | Boom Swing - Left: 60 degrees | Boom Swing - Right: 36.8 in | Maximum Dump Clearance: 187.4 in | Tail Swing without Counterweight: 57.1 in | Maximum Reach - Ground Level: 273.6 in | Maximum Reach: 281.1 in | Tail Swing with Counterweight: 62.4 in | Boom In Reach: 120.4 in | Vertical Wall: 117.8 in | Boom Swing - Left: 23.8 in | Maximum Dump Clearance: 199.7 in | Boom In Reach: 126.6 in | Vertical Wall: 134 in | Tail Swing with Counterweight: 62.4 in | Maximum Reach: 300.7 in | Swing Bearing: 29.7 in | Boom Swing - Left: 23.8 in | Boom Swing - Right: 36.8 in | Tail Swing without Counterweight: 57.1 in | Maximum Reach - Ground Level: 293.7 in
Track Width Belt/Shoe: 17.7 in | O/A: 97.2 in | O/A: 97.2 in | Belt/Shoe: 17.7 in
Overall Length Shipping - without Counterweight: 266.7 in | Shipping - with Counterweight: 266.7 in | Shipping - with Counterweight: 7052 mm (277.6 in)*** | Shipping - without Counterweight: 7052 mm (277.6 in)***
Ground Clearance STANDARD STICK: 14 in | LONG STICK: 14 in

Capacities

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

Weights

Weight, In Running Order Operating: 21091 lb | Maximum Operating with Cab**: 21091 lb | Minimum Operating with Cab*: 19735 lb
Weight Steel Tracks with Pads: 728 lb | Long Stick: 146 lb | Counterweight: 552 lb

Product Photography