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309 CR Mini Hydraulic Excavator

Net Power

69 hp

Operating Weight

20,870 lb

Dig Depth

182.8 in

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SPECIFICATIONS

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.

FULL SPECIFICATIONS

Air Conditioning System

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 (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe).

Blade

Width - Standard

97 in

Width - Wide

104 in

Height

17 in

Certification - Cab

Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Top Guard

ISO 10262:1998 (Level I)

Dimensions - Long Stick

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.

Dimensions - Standard Stick

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.

Engine

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.

Hydraulic System

Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Pump Flow at 2,400 rpm

62 gpm

Operating Pressure - Equipment

4,134 psi

Operating Pressure - Travel

4,134 psi

Operating Pressure - Swing

3,626 psi

Maximum Auxiliary Circuit - Primary - Flow at Pump

35 gpm

Maximum Auxiliary Circuit - Primary - Pressure at Pump

4,134 psi

Maximum Auxiliary Circuit - High Flow - Flow at Pump

37 gpm

Maximum Auxiliary Circuit - High Flow - Pressure at Pump

4,134 lbf/in

Digging Force - Stick - Standard

9,500 lb

Digging Force - Stick - Long

8,023 lb

Digging Force - Bucket

13,943 lb

Note

Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

Service Refill Capacities

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)

Sound

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"

Specifications

Note

The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.

Sustainability

Recyclability

96%

Swing System

Machine Swing Speed

10 r/min

Boom Swing - Left

60 degrees

Boom Swing - Right

50 degrees

Travel System

Travel Speed - High

3.1 mile/h

Travel Speed - Low

1.6 mile/h

Maximum Traction Force - High Speed

6,497 lb

Maximum Traction Force - Low Speed

19,064 lb

Ground Pressure - Minimum Weight

5.4 psi

Ground Pressure - Maximum Weight

6 psi

Gradeability - Maximum

30 degrees

Weight Increase from Minimum Configuration

Counterweight

552 lb

Long Stick

146 lb

Steel Tracks with Pads

728 lb

Weights

Operating Weight

20,870 lb

Minimum Operating Weight with Cab*

18,886 lb

Maximum Operating Weight with Cab**

20,870 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.

STANDARD EQUIPMENT

ENGINE
- 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)
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
- 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
TECHNOLOGY (availability varies by region)
- Product Link™ Elite (regulations apply)
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
- Lock Out/Tag Out Battery Disconnect
- Ignition Key Stop Switch
- Travel Alarm
GUARDING
- ROPS ISO 12117-2:2008
- Top Guard ISO 10262:1998 (Level I)
OTHER
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors

OPTIONAL EQUIPMENT

HYDRAULICS
- Third Auxiliary
OPERATOR ENVIRONMENT
- 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
TECHNOLOGY (availability varies by region)
- Ease of Use Indicate
- Ease of Use E-Fence
- Ease of Use Laser Catcher
- Cat Grade Advanced 2D
- Cat Grade 3D
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
- Rear and Side Camera
- Rotating Beacon
GUARDING
- 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
OTHER
- 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)