309 CR Mini Hydraulic Excavator

309 CR

Mini Hydraulic Excavator

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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.

Key Specs
Net Power 69 hp
Operating Weight 20870 lb
Dig Depth 182.8 in
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Product Specifications for 309 CR

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 55.4 kW
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 the time 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 20870 lb
Minimum Operating Weight with Cab* 18886 lb
Maximum Operating Weight with Cab** 20870 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, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Dig Depth 182.8 in
Vertical Wall 134 in
Maximum Reach – Ground Level 293.7 in
Maximum Reach 300.7 in
Maximum Dig Height 277.1 in
Maximum Dump Clearance 199.7 in
Boom In Reach 126.6 in
Tail Swing with Counterweight 62.4 in
Tail Swing without Counterweight 57.1 in
Maximum Blade Height 16.1 in
Maximum Blade Depth 26 in
Height – Boom Transport – No Tools* 89 in
Height – Boom Working – With Tools** 120.1 in
Cab Height 100 in
Swing Bearing – Height 29.7 in
O/A Undercarriage Length 126 in
Overall Shipping Length – with Counterweight 7052 mm (277.6 in)***
Overall Shipping Length – without Counterweight 7052 mm (277.6 in)***
Track Belt/Shoe Width 17.7 in
O/A Track Width 97.2 in
Ground Clearance 14 in
Stick Length 92.8 in
Note *Boom Height when stick is pinned in transport position with no attachments.
Note (1) **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
Note (2) ***With blade positioned at the rear of the machine.
Dig Depth 161.7 in
Vertical Wall 117.8 in
Maximum Reach – Ground Level 273.6 in
Maximum Reach 281.1 in
Maximum Dig Height 265.2 in
Maximum Dump Clearance 187.4 in
Boom In Reach 120.4 in
Tail Swing with Counterweight 62.4 in
Tail Swing without Counterweight 57.1 in
Maximum Blade Height 16.1 in
Maximum Blade Depth 26 in
Height – Boom Transport – No Tools* 95.7 in
Height – Boom Working – With Tools** 104.7 in
Cab Height 100 in
Swing Bearing – Height 29.7 in
O/A Undercarriage Length 126 in
Overall Shipping Length – with Counterweight 266.7 in
Overall Shipping Length – without Counterweight 266.7 in
Track Belt/Shoe Width 17.7 in
O/A Track Width 97.2 in
Ground Clearance 14 in
Stick Length 71.8 in
Note *Boom Height when stick is pinned in transport position with no attachments.
Note (1) **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
Note (2) ***With blade positioned at the rear of the machine.
Counterweight 552 lb
Long Stick 146 lb
Steel Tracks with Pads 728 lb
Travel Speed – High 3.1 mile/h
Travel Speed – Low 1.6 mile/h
Maximum Traction Force – High Speed 6497 lbf
Maximum Traction Force – Low Speed 19064 lbf
Ground Pressure – Minimum Weight 5.4 psi
Ground Pressure – Maximum Weight 6 psi
Gradeability – Maximum 30 degrees
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 35 gpm
Maximum Auxiliary Circuit – Primary – Pressure at Pump 4134 psi
Maximum Auxiliary Circuit – High Flow – Flow at Pump 37 gpm
Maximum Auxiliary Circuit – High Flow – Pressure at Pump 4134 lbf/in
Digging Force – Stick – Standard 9500 lbf
Digging Force – Stick – Long 8023 lbf
Digging Force – Bucket 13943 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
Width – Standard 97 in
Width – Wide 104 in
Height 17 in
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
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 0.75 kg (1
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
Note European Union Directive “2000/14/EC”
Recyclability 96%
Note The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
Cat C2.8 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Fit-For-Life Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC) Aftertreatment System
Automatic Engine Idle
Automatic Engine Shutdown
Automatic Swing Brake
Automatic Two Speed Travel
Fuel Water Separator with Indicator
Radial Seal – Double Element Air Filter
Extended Life Coolant, –37° C (–35° F)
Electronic Variable Displacement Piston Pump
Load Sensing/Flow Sharing Hydraulics
Dedicated Auxiliary Hydraulic Pump
Power On Demand
Hydraulic Temperature Monitoring
Certified Accumulator
HYDO Advanced Hydraulic Oil
Ecology Drain
Top Guard ISO 10262:1998 (Level I)
ROPS ISO 12117-2:2008
Stick Steer Mode
Travel Cruise Control
Control Pattern Changer
Adjustable Wrist Rests
Molded Footrests
Removable, Washable Floor Mat
Travel Pedals and Hand Levers
Cat Key with Passcode Option
HVAC with Automatic Temperature Control
Hydraulic Lockout Controls
Integrated Lower Front Window
Assisted Front Window Overhead Storage
Rear Window Emergency Exit
Cab Mirrors (vary by region)
Fabric, High Back, Suspension Seat
Retractable Seat Belt (75 mm/3 in)
Coat Hook
Cup Holder
LED Interior Light
Literature Holder
Mounting Bosses for Top and Front Guards
12V Power Socket
Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
Skylight
Signaling/Warning Horn
Cab and (left side) Boom Work Lights
Utility Space for Mobile Phone
Next Generation Color LCD Monitor (IP66)– Jog Dial Interface– Fuel Level and Coolant Temperature Gauges– Maintenance and Machine Monitoring– Performance and Machine Adjustments– Numeric Security Code– Multiple Languages– Camera Ready (IP68 & IP69K)– Hour Meter with Wake Up Switch
Product Link™ Elite (regulations apply)
Greased and Lubricated Track
Tie Down Eyes on Track Frame
Dozer Blade
Dozer Float
Bolt-on, Reversible Wear Edge
One Piece Boom (3400 mm/133.9 in)
Standard Stick (1820 mm/71.7 in)
Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
Thumb Ready (not available in all regions)
12 Volt Electrical System
60 Ampere Alternator
Circuit Breaker
900 CCA Maintenance Free Battery
Lock Out/Tag Out Battery Disconnect
Ignition Key Stop Switch
Travel Alarm
ROPS ISO 12117-2:2008
Top Guard ISO 10262:1998 (Level I)
Locks on External Enclosure Doors
Lockable Fuel Cap
Beacon Socket
Rear Reflectors
Third Auxiliary
Push to Start with Bluetooth® Key
Air Suspension Heated Seat
Seat Belt Reminder System
Rain Visor
Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)– Touch Screen– Site Reference System– High Definition Camera Capable (IP68 & IP69K)– Numeric Security Code
Ease of Use Indicate
Ease of Use E-Fence
Ease of Use Laser Catcher
Cat Grade Advanced 2D
Cat Grade 3D
Wide Dozer Blade
Steel Tracks (450 mm/17.7 in wide)
Wide Steel Tracks (600 mm/23.6 in)
Steel Track with Rubber Pads
Track Guides
Long Stick (2360 mm/92.9 in)
Attachments including Buckets, Augers and Hammers
2nd Auxiliary Hydraulic Lines with Case Drain
Boom Lowering Check Valve
Stick Lowering Check Valve
Certified Lifting Eye
Rear and Side Camera
Rotating Beacon
Top Guard ISO 10262:1998 (Level II)
Front Guard (Mesh) ISO 10262:1998 (Level I)
Front Guard (Heavy Duty) ISO 10262:1998 (Level II)
Track Guards
Counterweight (250 kg/551 lb)
Counterweight (500 kg/1103 lb)
Water Jacket Heater
Refueling Pump
Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)