2022 Caterpillar Mini Excavators 309 CR
- Year 2022
- Make Caterpillar
- Model Mini Excavators
- Engine Model: Cat C3.3B
2022 Caterpillar Mini Excavators 309 CR
OVERVIEWThe 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.
- Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.
- 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!
- 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.
- 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.
- 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.
- 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