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.
ENGINE Engine Model Cat C3.3B Net Power 70.3 HP Displacement 203.0 in³ Bore 3.7 in Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP Gross Power - ISO 14396 74.3 HP Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3 HP Stroke 4.7 in WEIGHTS Operating Weight 20731.0 lb Maximum Operating Weight with Cab 21091.0 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. Minimum Operating Weight with Cab 19735.0 lb BLADE Height 17.0 in Width - Wide 104.0 in Width - Standard 97.0 in DIMENSIONS - LONG STICK O/A Shipping Length 268.0 in Maximum Dump Clearance 202.0 in Dig Depth 181.0 in Boom In Reach 127.0 in Vertical Wall 132.0 in Maximum Blade Depth 26.0 in O/A Undercarriage Length 126.0 in O/A Track Width 97.0 in Transport Height 99.0 in Stick Length 93.0 in Maximum Blade Height 14.0 in Maximum Dig Height 279.0 in Tail Swing with Counterweight 65.0 in Maximum Reach 301.0 in Cab Height 100.0 in Ground Clearance 13.5 in Swing Bearing - Height 31.0 in Track Belt/Shoe Width 18.0 in Boom Swing - Left 24.0 in Boom Swing - Right 37.0 in Tail Swing without Counterweight 57.0 in Maximum Reach - Ground Level 293.0 in DIMENSIONS - STANDARD STICK Boom Swing - Right 37.0 in Maximum Dump Clearance 189.0 in Tail Swing without Counterweight 57.0 in Transport Height 98.0 in Maximum Reach - Ground Level 273.0 in O/A Undercarriage Length 126.0 in Cab Height 100.0 in Swing Bearing - Height 31.0 in Maximum Dig Height 149.0 in Track Belt/Shoe Width 18.0 in O/A Track Width 97.0 in Ground Clearance 14.0 in O/A Shipping Length 265.0 in Maximum Reach 281.0 in Tail Swing with Counterweight 65.0 in Boom In Reach 120.0 in Vertical Wall 116.0 in Dig Depth 160.0 in Stick Length 72.0 in Boom Swing - Left 24.0 in Maximum Blade Height 14.0 in Maximum Blade Depth 26.0 in HYDRAULIC SYSTEM Type Load Sensing Hydraulics with Variable Displacement Piston Pump Operating Pressure - Swing 3626.0 psi Auxiliary Circuit - Secondary - Flow 9.0 gal/min Auxiliary Circuit - Primary (High Flow) - Pressure 4134.0 psi Digging Force - Stick - Standard 9500.0 lb Digging Force - Stick - Long 8023.0 lb Auxiliary Circuit - Secondary - Pressure 4134.0 psi Operating Pressure - Travel 4134.0 psi Pump Flow at 2,400 rpm 62.0 gal/min Digging Force - Bucket 13943.0 lb Auxiliary Circuit - Primary (High Flow) - Flow 37.0 gal/min Operating Pressure - Equipment 4134.0 psi SOUND Average Exterior Sound Pressure (ISO 6395:2008) 99.0 dB(A) Note European Union Directive “2000/14/EC” Operator Sound Pressure (ISO 6396:2008) 72.0 dB(A) TRAVEL SYSTEM Gradeability - Maximum 30 degrees Ground Pressure - Minimum Weight 5.0 psi Ground Pressure - Maximum Weight 5.4 psi Travel Speed - High 3.1 mile/h Travel Speed - Low 1.6 mile/h Maximum Traction Force - High Speed 6497.0 lb Maximum Traction Force - Low Speed 19064.0 lb CERTIFICATION - CAB Roll Over Protective Structure (ROPS) ISO 12117-2:2008 Top Guard ISO 10262:1998 (Level II) Tip Over Protective Structure (TOPS) ISO 12117:1997 SERVICE REFILL CAPACITIES Engine Oil 3.0 gal (US) Fuel Tank 39.0 gal (US) Hydraulic System 29.0 gal (US) Cooling System 2.6 gal (US) Hydraulic Tank 14.0 gal (US) WEIGHT INCREASE FROM MINIMUM CONFIGURATION Steel Tracks with Pads 728.0 lb Long Stick 146.0 lb Counterweight 552.0 lb SWING SYSTEM Machine Swing Speed 10.6 r/min Boom Swing - Right 50 degrees Boom Swing - Left 60 degrees *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. 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.
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.
309 CR 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
309 CR 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
DIGGING BUCKETS - MINI EXCAVATOR:
CAR MODELS: 309 CR20731lbs (9403kg) COMPETITOR MODELS: YANMAR SV 100-2A21550lbs (9775kg)
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