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309 CR Mini Hydraulic Excavator

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CALCULATE FINANCE

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
Net Power 52.4 kW (70.3 HP)
Weights
Operating Weight 9403 kg (20731 lb)
Dimensions - Long Stick
Dig Depth 4593 mm (181 in)
Engine
Engine Model Cat C3.3B
Blade
Height 431 mm (17 in)
Dimensions - Long Stick
O/A Shipping Length 6816 mm (268 in)
Dimensions - Standard Stick
Boom Swing - Right 935 mm (37 in)
Blade
Width - Wide 2640 mm (104 in)
Hydraulic System
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Weights
Maximum Operating Weight with Cab** 9565 kg (21091 lb)
Dimensions - Standard Stick
Maximum Dump Clearance 4810 mm (189 in)
Tail Swing without Counterweight 1450 mm (57 in)
Dimensions - Long Stick
Maximum Dump Clearance 5122 mm (202 in)
Dimensions - Standard Stick
Transport Height 2487 mm (98 in)
Maximum Reach - Ground Level 6930 mm (273 in)
O/A Undercarriage Length 3200 mm (126 in)
Cab Height 2607 mm (100 in)
Sound
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) (99 dB(A))
Engine
Displacement 3.33 l (203 inu00b3)
Hydraulic System
Operating Pressure - Swing 250 bar (3626 psi)
Weights
Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Dimensions - Standard Stick
Swing Bearing - Height 795 mm (31 in)
Maximum Dig Height 3786 mm (149 in)
Dimensions - Long Stick
Boom In Reach 3215 mm (127 in)
Vertical Wall 3354 mm (132 in)
Engine
Bore 94 mm (3.7 in)
Travel System
Gradeability - Maximum 30 degrees
Engine
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 53.3 kW (71.5 HP)
Hydraulic System
Auxiliary Circuit - Secondary - Flow 33 l/min (9 gal/min)
Auxiliary Circuit - Primary (High Flow) - Pressure 285 bar (4134 psi)
Dimensions - Long Stick
Maximum Blade Depth 671 mm (26 in)
Certification - Cab
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Engine
Gross Power - ISO 14396 55.4 kW (74.3 HP)
Dimensions - Standard Stick
Track Belt/Shoe Width 450 mm (18 in)
Dimensions - Long Stick
O/A Undercarriage Length 3200 mm (126 in)
Travel System
Ground Pressure - Minimum Weight 34.7 kPa (5 psi)
Dimensions - Long Stick
O/A Track Width 2470 mm (97 in)
Dimensions - Standard Stick
O/A Track Width 2470 mm (97 in)
Travel System
Ground Pressure - Maximum Weight 37.1 kPa (5.4 psi)
Dimensions - Long Stick
Transport Height 2514 mm (99 in)
Service Refill Capacities
Engine Oil 11.2 l (3 gal (US))
Dimensions - Standard Stick
Ground Clearance 356 mm (14 in)
Dimensions - Long Stick
Stick Length 2358 mm (93 in)
Travel System
Travel Speed - High 4.9 km/h (3.1 mile/h)
Dimensions - Long Stick
Maximum Blade Height 355 mm (14 in)
Hydraulic System
Digging Force - Stick - Standard 42.3 kN (9500 lb)
Dimensions - Standard Stick
O/A Shipping Length 6731 mm (265 in)
Hydraulic System
Digging Force - Stick - Long 35.7 kN (8023 lb)
Dimensions - Long Stick
Maximum Dig Height 7089 mm (279 in)
Hydraulic System
Auxiliary Circuit - Secondary - Pressure 285 bar (4134 psi)
Certification - Cab
Top Guard ISO 10262:1998 (Level II)
Hydraulic System
Operating Pressure - Travel 285 bar (4134 psi)
Weight Increase from Minimum Configuration
Steel Tracks with Pads 330 kg (728 lb)
Dimensions - Long Stick
Tail Swing with Counterweight 1645 mm (65 in)
Dimensions - Standard Stick
Maximum Reach 7141 mm (281 in)
Dimensions - Long Stick
Maximum Reach 7637 mm (301 in)
Certification - Cab
Tip Over Protective Structure (TOPS) ISO 12117:1997
Sound
Note European Union Directive u201c2000/14/ECu201d
Weight Increase from Minimum Configuration
Long Stick 66 kg (146 lb)
Dimensions - Long Stick
Cab Height 2607 mm (100 in)
Sound
Operator Sound Pressure (ISO 6396:2008) 72 dB(A) (72 dB(A))
Service Refill Capacities
Fuel Tank 147 l (39 gal (US))
Dimensions - Standard Stick
Tail Swing with Counterweight 1645 mm (65 in)
Hydraulic System
Pump Flow at 2,400 rpm 233 l/min (62 gal/min)
Dimensions - Long Stick
Ground Clearance 356 mm (13.5 in)
Swing Bearing - Height 795 mm (31 in)
Service Refill Capacities
Hydraulic System 110 l (29 gal (US))
Dimensions - Long Stick
Track Belt/Shoe Width 450 mm (18 in)
Dimensions - Standard Stick
Boom In Reach 3059 mm (120 in)
Travel System
Travel Speed - Low 2.6 km/h (1.6 mile/h)
Engine
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 52.4 kW (70.3 HP)
Dimensions - Long Stick
Boom Swing - Left 604 mm (24 in)
Dimensions - Standard Stick
Vertical Wall 2941 mm (116 in)
Dimensions - Long Stick
Boom Swing - Right 935 mm (37 in)
Hydraulic System
Digging Force - Bucket 62 kN (13943 lb)
Auxiliary Circuit - Primary (High Flow) - Flow 140 l/min (37 gal/min)
Blade
Width - Standard 2470 mm (97 in)
Swing System
Machine Swing Speed 10.6 r/min (10.6 r/min)
Travel System
Maximum Traction Force - High Speed 28.9 kN (6497 lb)
Hydraulic System
Operating Pressure - Equipment 285 bar (4134 psi)
Dimensions - Standard Stick
Dig Depth 4058 mm (160 in)
Travel System
Maximum Traction Force - Low Speed 84.8 kN (19064 lb)
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 - Long Stick
Tail Swing without Counterweight 1450 mm (57 in)
Weights
Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Weight Increase from Minimum Configuration
Counterweight 250 kg (552 lb)
Service Refill Capacities
Cooling System 10 l (2.6 gal (US))
Hydraulic Tank 53 l (14 gal (US))
Dimensions - Standard Stick
Stick Length 1823 mm (72 in)
Weights
Minimum Operating Weight with Cab* 8950 kg (19735 lb)
Dimensions - Standard Stick
Boom Swing - Left 604 mm (24 in)
Maximum Blade Height 355 mm (14 in)
Maximum Blade Depth 671 mm (26 in)
Engine
Stroke 120 mm (4.7 in)
Dimensions - Long Stick
Maximum Reach - Ground Level 7449 mm (293 in)
Specifications
Note The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR with a Standard Undercarriage, please refer to the 308 CR information.
Swing System
Boom Swing - Right 50 degrees
Boom Swing - Left 60 degrees

Standard Equipment

  • ENGINE
    • Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
    • 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)
    • Ecology Drain
  • HYDRAULICS
    • Smart Tech Electronic Pump
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO Advanced Hydraulic Oil
  • OPERATOR ENVIRONMENT
    • Sealed and Pressurized Cab
    • Operator Sound Pressure 72 dB(A) ISO 6396:2008
    • 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
    • Fabric, High Back, Suspension Seat
    • Retractable Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • LED Interior Light
    • Literature Holder
    • 12V Power Socket
    • Radio – Bluetooth®, USB, Auxiliary, Microphone
    • Skylight
    • Mounting Bosses for Top and Front Guards
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • Top Guard – ISO 10262:1998 (Level II)
    • Color LCD Monitor
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Camera Ready
      – Hour Meter with Wake Up Switch
      – Jog Dial Control Interface
  • UNDERCARRIAGE
    • Greased and Lubricated Track
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
    • Steel Tracks (450 mm/17.7 in wide)
  • BOOM, STICK AND LINKAGES
    • One Piece Boom (3400 mm/133.9 in)
    • Standard Stick (1820 mm/71.7 in)
    • Long Stick (2360 mm/92.9 in)
    • Front Shovel Capable (Pin-On/Manual Coupler/Hydraulic Coupler – not available in all regions)
    • Thumb Ready (not available in all regions)
    • Certified Lifting Eye (not available in all regions)
  • ELECTRICAL
    • 12 Volt Electrical System
    • 60 Ampere Alternator
    • 900 CCA Maintenance Free Battery
    • Circuit Breaker
    • Ignition Key Stop Switch
    • Signaling/Warning Horn
    • Product Link™ Elite Lite (regulations apply)
    • Travel Alarm

Optional Equipment

  • OPERATOR ENVIRONMENT
    • Rain Visor
    • Air Suspension Heated Seat
  • ELECTRICAL
    • Rearview Camera
    • Rotating Beacon
  • OTHER
    • Attachments including Buckets, Augers and Hammers
    • Wide Steel Tracks (600 mm/23.6 in)
    • Wide Dozer Blade
    • 2nd Auxiliary Hydraulic Lines with Case Drain
    • Additional Counterweight
    • Boom and Stick Hose Burst Check Valves
    • Bucket Linkage with Lift Eye
    • Track Guides
    • Water Jacket Heater
    • Refueling Pump
    • Variable Angle Boom (please see 309 CR VAB brochure for VAB specs and additional information)
    • Cab Guarding

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