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.
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Engine
- Net Power
- 69.5HP
- Engine Model
- Cat C3.3B
- Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 69.5HP
- Displacement
- 203in³
- Bore
- 3.7in
- Stroke
- 4.7in
- Gross Power - SAE J1995
- 74.3HP
Weights
- Operating Weight
- 21091lb
- Maximum Operating Weight with Cab**
- 21091lb
- 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*
- 19735lb
Dimensions - Long Stick
- Dig Depth
- 182.8in
- Boom In Reach
- 126.6in
- Maximum Dump Clearance
- 199.7in
- Vertical Wall
- 134in
- Maximum Blade Depth
- 26in
- O/A Undercarriage Length
- 126in
- Maximum Dig Height
- 277.1in
- O/A Track Width
- 97.2in
- Tail Swing with Counterweight
- 62.4in
- Stick Length
- 92.8in
- Swing Bearing - Height
- 29.7in
- Maximum Blade Height
- 16.1in
- Track Belt/Shoe Width
- 17.7in
- Boom Swing - Right
- 36.8in
- Tail Swing without Counterweight
- 57.1in
- Maximum Reach
- 300.7in
- Maximum Reach - Ground Level
- 293.7in
- Cab Height
- 100in
- Height - Boom Transport - No Tools*
- 89in
- Ground Clearance
- 14in
- Height - Boom Working - With Tools**
- 120.1in
- Boom Swing - Left
- 23.8in
- Note
- *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.
- Overall Shipping Length - with Counterweight
- 7052 mm (277.6 in)***
- Overall Shipping Length - without Counterweight
- 7052 mm (277.6 in)***
Blade
- Height
- 17in
- Width - Wide
- 104in
- Width - Standard
- 97in
Travel System
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Minimum Weight
- 5psi
- Travel Speed - High
- 3.1mile/h
- Travel Speed - Low
- 1.6mile/h
- Maximum Traction Force - High Speed
- 6497lb
- Maximum Traction Force - Low Speed
- 19064lb
- Ground Pressure - Maximum Weight
- 5.4psi
Service Refill Capacities
- Engine Oil
- 3gal (US)
- Fuel Tank
- 39gal (US)
- Hydraulic System
- 29gal (US)
- Cooling System
- 2.6gal (US)
- Hydraulic Tank
- 14gal (US)
Hydraulic System
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Operating Pressure - Swing
- 3626psi
- Digging Force - Stick - Standard
- 9500lb
- Digging Force - Stick - Long
- 8023lb
- Operating Pressure - Travel
- 4134psi
- Pump Flow at 2,400 rpm
- 62gal/min
- Digging Force - Bucket
- 13943lb
- Operating Pressure - Equipment
- 4134psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Maximum Auxiliary Circuit - Secondary - Flow at Pump
- 9gal/min
- Maximum Auxiliary Circuit - Primary - Pressure at Pump
- 4134psi
- Maximum Auxiliary Circuit - Primary - Flow at Pump
- 35gal/min
- Maximum Auxiliary Circuit - Secondary - Pressure at Pump
- 4134psi
- Maximum Auxiliary Circuit - High Flow - Pressure at Pump
- 4134lbf/in
- Maximum Auxiliary Circuit - High Flow - Flow at Pump
- 37gal/min
Swing System
- Machine Swing Speed
- 10.6r/min
- Boom Swing - Right
- 50 degrees
- Boom Swing - Left
- 60 degrees
Certification - Cab
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Top Guard
- ISO 10262:1998 (Level I)
- Tip Over Protective Structure (TOPS)
- ISO 12117:1997
Weight Increase from Minimum Configuration
- Steel Tracks with Pads
- 728lb
- Long Stick
- 146lb
- Counterweight
- 552lb
Sound
- Note
- European Union Directive "2000/14/EC"
- Operator Sound Pressure (ISO 6396:2008)
- 72dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 99dB(A)
Dimensions - Standard Stick
- Boom Swing - Right
- 36.8in
- Cab Height
- 100in
- Maximum Dump Clearance
- 187.4in
- Tail Swing without Counterweight
- 57.1in
- Maximum Reach
- 281.1in
- Maximum Reach - Ground Level
- 273.6in
- O/A Undercarriage Length
- 126in
- Boom In Reach
- 120.4in
- Swing Bearing - Height
- 29.7in
- Maximum Dig Height
- 265.2in
- Track Belt/Shoe Width
- 17.7in
- O/A Track Width
- 97.2in
- Ground Clearance
- 14in
- Tail Swing with Counterweight
- 62.4in
- Vertical Wall
- 117.8in
- Note
- *Boom Height when stick is pinned in transport position with no attachments.
- Dig Depth
- 161.7in
- Stick Length
- 71.8in
- Boom Swing - Left
- 23.8in
- Note (2)
- ***With blade positioned at the rear of the machine.
- Maximum Blade Height
- 16.1in
- Note (1)
- **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
- Maximum Blade Depth
- 26in
- Overall Shipping Length - without Counterweight
- 266.7in
- Overall Shipping Length - with Counterweight
- 266.7in
- Height - Boom Transport - No Tools*
- 95.7in
- Height - Boom Working - With Tools**
- 104.7in
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.
Sustainability
- Recyclability
- 96%
Specifications
- Note
- The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
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)
-
- 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:
-
- 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)
861 mm (34 in) Ripper
- Shank Length
- 33.9 in
- Weight
- 235.9 lb
- Overall Length
- 42 in
HM210 Mulcher
- Overall Width
- 48.3 in
- Working Width
- 39.8 in
- Length
- 28.1 in
HM208 Mulcher
- Overall Width
- 40.4 in
- Working Width
- 32.2 in
- Length
- 28.1 in
H95s Hydraulic Hammer
- Operating Weight - With Tool
- 1382.3 lb
- Energy Class
- 1500.2 ft·lbf
- Machine Class
- 7-10 Ton Mini Excavators, 415-450 Backhoe Loaders (No Side Shift)
H80s Hydraulic Hammer
- Operating Weight - With Tool
- 937 lb
- Energy Class
- 1000.1 ft·lbf
- Machine Class
- 7-9 Ton Mini Excavators, 415-450 Backhoe Loaders
B8s Silenced Hydraulic Hammer
- Operating Weight - With Tool
- 758.4 lb
- Energy Class
- 848.2 ft·lbf
- Machine Class
- 6-9 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders, 415-444 Backhoe Loaders
B8 Non-Silenced Hydraulic Hammer
- Operating Weight - With Tool
- 771 lb
- Energy Class
- 848.2 ft·lbf
- Machine Class
- 6-9 Ton Mini Excavators, 216-299 Skid Steer/Compact Track Loaders, 415-444 Backhoe Loaders
G108 Stiff link Contractors’ Grapple
- Machine Class
- 7-9 Ton Mini Excavators
- Jaw Opening
- 69.5 in
- Weight
- 815.7 lb
1312 mm (52 in) Pallet Fork Carriage
- Height
- 21.7 in
- Width
- 51.7 in
- Weight
- 249.1 lb
HMF210 Flail Mower
- Working Width
- 39.4 in
- Required Hydraulics
- Standard Flow
- Overall Width
- 46.6 in
Tilting Dual Lock Pin Grabber Coupler For 8 Ton Mini Excavators
- Weight
- 448.2 lb
- Overall Width
- 14.6 in
- Length
- 24.5 in
S-50 Pin Grabber S Type Coupler For 8 Ton Mini Excavators
- Weight
- 196.9 lb
- Lifting Hook Capacity
- 6613.9 lb
- Width
- 13.5 in
S-50 Pin Grabber S Type Coupler With Secure Lock For 8 Ton Mini Excavators
- Weight
- 196.9 lb
- Lifting Hook Capacity
- 6613.9 lb
- Width
- 13.5 in
S-45 Pin Grabber S Type Coupler For 7-9 Ton Mini Excavators
- Weight
- 209.4 lb
- Lifting Hook Capacity
- 6613.9 lb
- Width
- 13.5 in
Manual Pin Lock Coupler For 8 Ton Mini Excavators
- Weight
- 174.2 lb
- Width
- 13.7 in
- Length
- 26 in
Manual Dual Lock™ Pin Grabber Coupler For 8 Ton Mini Excavators
- Weight
- 196.2 lb
- Width
- 11.5 in
- Length
- 23.3 in
Hydraulic Dual Lock™ Pin Grabber Coupler For 8 Ton Mini Excavators
- Weight
- 211.6 lb
- Width
- 14.6 in
- Length
- 23.4 in
914 mm (36 in) 7-8 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 34.8 in
- Number of Wheels
- 5
- Machine Class
- 7-8 Ton Mini Excavators
610 mm (24 in) 7-8 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 21.9 in
- Number of Wheels
- 3
- Machine Class
- 7-8 Ton Mini Excavators
610 mm (24 in) 1 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 22 in
- Number of Wheels
- 3
- Machine Class
- 1 Ton Mini Excavators
457 mm (18 in) 7-8 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 17.7 in
- Number of Wheels
- 3
- Machine Class
- 7-8 Ton Mini Excavators
457 mm (18 in) 1 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 17.3 in
- Number of Wheels
- 3
- Machine Class
- 1 Ton Mini Excavators
305 mm (12 in) 7-8 Ton Mini Excavator Pin On Compaction Wheel
- Compaction Width
- 12 in
- Number of Wheels
- 2
- Machine Class
- 7-8 Ton Mini Excavators
305 mm (12 in) 1 Ton Mini Excavator Pin Lock Compaction Wheel
- Compaction Width
- 11.3 in
- Number of Wheels
- 2
- Machine Class
- 1 Ton Mini Excavators
PC45 Cold Planer
- Working Width
- 17.7 in
- Maximum Cutting Depth
- 5.9 in
- Required Hydraulics
- 1st Auxiliary
PC35 Cold Planer
- Working Width
- 13.8 in
- Maximum Cutting Depth
- 4.7 in
- Required Hydraulics
- 1st Auxiliary
1300 mm (51 in) Nordic Grading Bucket
- Width
- 51.2 in
- Capacity
- 14.1 ft³
- Weight
- 637.1 lb
1300 mm (51 in) Nordic Grading Bucket
- Width
- 51.2 in
- Capacity
- 14.1 ft³
- Weight
- 595.2 lb
1300 mm (51 in) Nordic Grading Bucket
- Width
- 51.2 in
- Capacity
- 14.1 ft³
- Weight
- 582 lb
762 mm (30 in) Heavy Duty Rock Bucket
- Width
- 30 in
- Capacity
- 10.9 ft³
- Weight
- 491.6 lb
610 mm (24 in) Heavy Duty Rock Bucket
- Width
- 24 in
- Capacity
- 8.1 ft³
- Weight
- 427.7 lb
914 mm (36 in) Heavy Duty Bucket
- Width
- 36 in
- Capacity
- 13.7 ft³
- Weight
- 507.1 lb
762 mm (30 in) Heavy Duty Bucket
- Width
- 30 in
- Capacity
- 10.9 ft³
- Weight
- 456.4 lb
610 mm (24 in) Heavy Duty Bucket
- Width
- 24 in
- Capacity
- 8.1 ft³
- Weight
- 392.4 lb
457 mm (18 in) Heavy Duty Bucket
- Width
- 18 in
- Capacity
- 5.3 ft³
- Weight
- 332.9 lb
330 mm (13 in) Heavy Duty Bucket
- Width
- 13 in
- Capacity
- 3.5 ft³
- Weight
- 299.8 lb
1500 mm (59 in) Grading Bucket
- Width
- 59.1 in
- Capacity
- 18.4 ft³
- Weight
- 761.9 lb
1200 mm (47 in) Grading Bucket
- Width
- 47.2 in
- Capacity
- 14.5 ft³
- Weight
- 615.3 lb
1524 mm (60 in) Ditch Cleaning Bucket
- Width
- 60 in
- Capacity
- 14.8 ft³
- Weight
- 557.1 lb
1372 mm (54 in) Ditch Cleaning Bucket
- Width
- 54 in
- Capacity
- 13.2 ft³
- Weight
- 517 lb
1219 mm (48 in) Ditch Cleaning Bucket
- Width
- 48 in
- Capacity
- 11.6 ft³
- Weight
- 477.1 lb
914 mm (36 in) Pin Lock High Capacity Bucket
- Width
- 36 in
- Capacity
- 16.2 ft³
- Weight
- 560 lb
762 mm (30 in) Pin Lock High Capacity Bucket
- Width
- 30 in
- Capacity
- 12.7 ft³
- Weight
- 489.4 lb
610 mm (24 in) Pin Lock High Capacity Bucket
- Width
- 24 in
- Capacity
- 9.2 ft³
- Weight
- 427.7 lb
406 mm (16 in) Pin Lock High Capacity Bucket
- Width
- 16 in
- Capacity
- 5.7 ft³
- Weight
- 337.3 lb
457 mm (18 in) Pin Lock High Capacity Bucket
- Width
- 18 in
- Capacity
- 6.4 ft³
- Weight
- 357.1 lb
914 mm (36 in) Pin Lock Heavy Duty Bucket
- Width
- 36 in
- Capacity
- 12 ft³
- Weight
- 509.3 lb
762 mm (30 in) Pin Lock Heavy Duty Bucket
- Width
- 30 in
- Capacity
- 9.9 ft³
- Weight
- 443.1 lb
610 mm (24 in) Pin Lock Heavy Duty Bucket
- Width
- 24 in
- Capacity
- 7.3 ft³
- Weight
- 370.4 lb
406 mm (16 in) Pin Lock Heavy Duty Bucket
- Width
- 16 in
- Capacity
- 4.2 ft³
- Weight
- 297.6 lb
457 mm (18 in) Pin Lock Heavy Duty Bucket
- Width
- 18 in
- Capacity
- 4.9 ft³
- Weight
- 304.2 lb
300 mm (12 in) Pin Lock Heavy Duty Bucket
- Width
- 11.8 in
- Capacity
- 3.4 ft³
- Weight
- 249.1 lb
A68 Auger
- Drive Shaft Torque at Maximum Pressure
- 5034.6 lb/ft
- Drive Method
- Gerotor Motor - Double Planetary Reduction
- Mounting Bracket Design
- 8 Ton Mini Excavator Pin On
7 – 9 Ton Excavator Class Skid Steer Coupler Adapter
- Weight
- 310.9 lb
- Width
- 44.3 in
- Overall Length
- 19.9 in
671 mm (26 in) 4 Teeth/2 Tine Progressive Link Thumb for 8 Ton Mini Excavators
- Number of Teeth/Tines
- 4/2
- Stored Height
- 26.4 in
- Overall Width
- 17.7 in
858 mm (34 in) 6 Teeth/2 Tine Progressive Link Thumb for 8 Ton Mini Excavators
- Number of Teeth/Tines
- 6/2
- Stored Height
- 33.8 in
- Overall Width
- 17.7 in
S308 Mobile Scrap & Demolition Shear
- Tip Force
- 43.3 Sh Ton
- Rotation
- 360 Degrees
- Jaw Opening
- 9.4 in