309 CR Mini Hydraulic Excavator
Mini Excavators
Details
Net Power
69.5 HP
Operating Weight
21091 lb
Dig Depth
182.8 in
Overview
Mini Excavators Inspired by Our Customers
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.
Benefits
Industry First Features
Cat Exclusives in a Mini Excavator
Lower Total Ownership Costs
with improved fuel efficiency and longer service intervals
More Performance
with customizable operator settings and improvements in lift, swing, travel and multifunction
Features at a Glance
- ALL DAY COMFORT
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- 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
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- 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
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- 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
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- Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, blade float allows for easy clean up and long undercarriage provides improved stability.
- HIGH FLOW
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- Dedicated auxiliary hydraulic pump is ideal for running power-hungry attachments while allowing the machine to simultaneously travel and multifunction. This feature allows consistent pressure to the auxiliary lines with no loss of hydraulic power keeping your attachment running at full power maintaining optimal productivity.
- SAFETY ON THE JOB SITE
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- 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
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- 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
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- 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.
- UNMATCHED DEALER SUPPORT
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- Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.
- SUSTAINABILITY
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- The Cat® C3.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
- Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
- Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
- Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
- Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
- The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
- Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
- Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
- Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
- Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
Specifications
Full Specifications
- Engine
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Net Power
69.5 HPDisplacement
203 in³Bore
3.7 inStroke
4.7 inGross Power - SAE J1995
74.3 HPRated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
69.5 HPEngine Model
Cat C3.3B
- Specifications
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Note
The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
- Weights
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Operating Weight
21091 lbMaximum Operating Weight with Cab**
21091 lbNote (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 lb
- Dimensions - Long Stick
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Dig Depth
182.8 inMaximum Dump Clearance
199.7 inBoom In Reach
126.6 inVertical Wall
134 inMaximum Blade Depth
26 inO/A Undercarriage Length
126 inO/A Track Width
97.2 inStick Length
92.8 inMaximum Blade Height
16.1 inMaximum Dig Height
277.1 inTail Swing with Counterweight
62.4 inMaximum Reach
300.7 inCab Height
100 inGround Clearance
14 inSwing Bearing - Height
29.7 inTrack Belt/Shoe Width
17.7 inBoom Swing - Left
23.8 inBoom Swing - Right
36.8 inTail Swing without Counterweight
57.1 inMaximum Reach - Ground Level
293.7 inNote
*Boom Height when stick is pinned in transport position with no attachments.Note (2)
***With blade positioned at the rear of the machine.Note (1)
**Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.Height - Boom Transport - No Tools*
89 inOverall Shipping Length - with Counterweight
7052 mm (277.6 in)***Height - Boom Working - With Tools**
120.1 inOverall Shipping Length - without Counterweight
7052 mm (277.6 in)***
- Weight Increase from Minimum Configuration
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Steel Tracks with Pads
728 lbLong Stick
146 lbCounterweight
552 lb
- Travel System
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Gradeability - Maximum
30 degreesGround Pressure - Minimum Weight
5 psiGround Pressure - Maximum Weight
5.4 psiTravel Speed - High
3.1 mile/hTravel Speed - Low
1.6 mile/hMaximum Traction Force - High Speed
6497 lbMaximum Traction Force - Low Speed
19064 lb
- Service Refill Capacities
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Engine Oil
3 gal (US)Fuel Tank
39 gal (US)Hydraulic System
29 gal (US)Cooling System
2.6 gal (US)Hydraulic Tank
14 gal (US)
- Hydraulic System
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Type
Load Sensing Hydraulics with Variable Displacement Piston PumpOperating Pressure - Swing
3626 psiDigging Force - Stick - Standard
9500 lbDigging Force - Stick - Long
8023 lbOperating Pressure - Travel
4134 psiPump Flow at 2,400 rpm
62 gal/minDigging Force - Bucket
13943 lbOperating Pressure - Equipment
4134 psiNote
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.Maximum Auxiliary Circuit - Secondary - Flow at Pump
9 gal/minMaximum Auxiliary Circuit - Primary - Pressure at Pump
4134 psiMaximum Auxiliary Circuit - Primary - Flow at Pump
35 gal/minMaximum Auxiliary Circuit - Secondary - Pressure at Pump
4134 psiMaximum Auxiliary Circuit - High Flow - Pressure at Pump
4134 lbf/inMaximum Auxiliary Circuit - High Flow - Flow at Pump
37 gal/min
- Swing System
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Machine Swing Speed
10.6 r/minBoom Swing - Right
50 degreesBoom Swing - Left
60 degrees
- Blade
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Height
17 inWidth - Wide
104 inWidth - Standard
97 in
- Certification - Cab
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Roll Over Protective Structure (ROPS)
ISO 12117-2:2008Top Guard
ISO 10262:1998 (Level I)Tip Over Protective Structure (TOPS)
ISO 12117:1997
- Sound
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Average Exterior Sound Pressure (ISO 6395:2008)
99 dB(A)Note
European Union Directive "2000/14/EC"Operator Sound Pressure (ISO 6396:2008)
72 dB(A)
- Dimensions - Standard Stick
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Boom Swing - Right
36.8 inMaximum Dump Clearance
187.4 inTail Swing without Counterweight
57.1 inMaximum Reach - Ground Level
273.6 inO/A Undercarriage Length
126 inCab Height
100 inSwing Bearing - Height
29.7 inMaximum Dig Height
265.2 inTrack Belt/Shoe Width
17.7 inO/A Track Width
97.2 inGround Clearance
14 inMaximum Reach
281.1 inTail Swing with Counterweight
62.4 inBoom In Reach
120.4 inVertical Wall
117.8 inDig Depth
161.7 inStick Length
71.8 inBoom Swing - Left
23.8 inMaximum Blade Height
16.1 inMaximum Blade Depth
26 inNote
*Boom Height when stick is pinned in transport position with no attachments.Overall Shipping Length - without Counterweight
266.7 inOverall Shipping Length - with Counterweight
266.7 inNote (2)
***With blade positioned at the rear of the machine.Note (1)
**Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.Height - Boom Transport - No Tools*
95.7 inHeight - Boom Working - With Tools**
104.7 in
- Air Conditioning System
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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.
- Sustainability
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Recyclability
96%
Equipment
- Standard Equipment
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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)
HYDRAULICS
- 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
OPERATOR ENVIRONMENT
- 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
- 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
UNDERCARRIAGE
- Greased and Lubricated Track
- Tie Down Eyes on Track Frame
- Dozer Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
BOOM, STICK AND LINKAGES
- 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)
ELECTRICAL
- 12 Volt Electrical System
- 60 Ampere Alternator
- Circuit Breaker
- 900 CCA Maintenance Free Battery
- Battery Disconnect
- Ignition Key Stop Switch
- Travel Alarm
OTHER
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
- Optional Equipment
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OPERATOR ENVIRONMENT
- Push to Start with Bluetooth® Key
- Air Suspension Heated Seat
- 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
UNDERCARRIAGE
- 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
BOOM, STICK AND LINKAGES
- 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
ELECTRICAL
- Product Link™ Elite (regulations apply)
- Rearview Camera
- Rotating Beacon
GUARDING
- Mesh Front Guard ISO 10262 1998 Level I
- Heavy Duty Front Guard ISO 10262 1998 Level II
- Top Guard ISO 10262 1998 Level II
- Polycarbonate Front Window EN356 P5A (Cab Only)
- Track Guards
OTHER
- Additional Counterweight
- Water Jacket Heater
- Refueling Pump
- Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)