Mini Excavators

309 CR VAB Mini Hydraulic Excavator

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309 CR VAB Mini Hydraulic Excavator
309 CR VAB Mini Hydraulic Excavator
US
Metric

Overview

The Cat® 309 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.

Engine

Net Power
69.50 HP
51.80 kW

Weights

Operating Weight
21477.00 lb
9740.00 kg

Dimensions - VAB In

Dig Depth
150.20 in
3815.00 mm

Blade

Height
17.00 in
431.00 mm

Dimensions - VAB In

Cab Height
100.00 in
2541.00 mm
Maximum Blade Depth
19.10 in
484.00 mm

Hydraulic System

Operating Pressure - Travel
4134.00 psi
285.00 bar

Dimensions - VAB Out

Ground Clearance
14.00 in
356.00 mm
Cab Height
100.00 in
2541.00 mm
Boom in Reach
106.70 in
2710.00 mm

Hydraulic System

Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Travel System

Ground Pressure - Minimum Weight
5.10 psi
35.40 kPa

Service Refill Capacities

Fuel Tank
39.00 gal (US)
147.00 l

Dimensions - VAB Out

Vertical Wall
146.70 in
3725.00 mm
Swing Bearing Height
29.80 in
756.00 mm

Hydraulic System

Digging Force - Stick - Standard
9509.00 lbf
42.30 kN

Dimensions - VAB In

Maximum Blade Height
16.10 in
408.00 mm
Stick Length
71.70 in
1820.00 mm
Maximum Reach
256.50 in
6515.00 mm

Dimensions - VAB Out

Maximum Dump Clearance
247.40 in
6285.00 mm

Dimensions - VAB In

Tail Swing without Counterweight
57.10 in
1450.00 mm
Vertical Wall
99.20 in
2520.00 mm

Swing System

Machine Swing Speed
10.60 r/min
10.60 r/min

Dimensions - VAB In

Swing Bearing Height
29.80 in
756.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm

Service Refill Capacities

Hydraulic System
29.00 gal (US)
110.00 l
Engine Oil
3.00 gal (US)
11.20 l

Weight Increase from Minimum Configuration

Steel Tracks with Pads
728.00 lb
330.00 kg

Dimensions - VAB Out

Overall Undercarriage Length
126.00 in
3200.00 mm

Service Refill Capacities

Cooling System
2.60 gal (US)
10.00 l

Travel System

Travel Speed - High
3.10 mile/h
4.90 km/h

Dimensions - VAB In

Boom Swing Right
37.00 in
935.00 mm
Overall Track Width
97.20 in
2470.00 mm

Hydraulic System

Digging Force - Bucket
13946.00 lbf
62.00 kN
Pump Flow at 2,400 rpm
62.00 gal/min
233.00 l/min

Dimensions - VAB Out

Maximum Reach at Ground Level
303.70 in
7715.00 mm

Travel System

Maximum Traction Force - High Speed
6497.00 lbf
28.90 kN

Dimensions - VAB In

Overall Shipping Length
255.70 in
6495.00 mm
Maximum Dump Clearance
135.80 in
3450.00 mm
Boom in Reach
122.80 in
3120.00 mm

Dimensions - VAB Out

Tail Swing without Counterweight
57.10 in
1450.00 mm

Dimensions - VAB In

Maximum Reach at Ground Level
248.00 in
6300.00 mm

Specifications

Note
The 309 CR VAB specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR VAB with a Standard Undercarriage, please refer to the 308 CR information.

Dimensions - VAB Out

Maximum Reach
310.40 in
7885.00 mm

Certification - Cab

Top Guard
ISO 10262:1998 (Level II)

Dimensions - VAB Out

Track Belt/Shoe Width
17.70 in
450.00 mm

Travel System

Travel Speed - Low
1.60 mile/h
2.60 km/h

Dimensions - VAB Out

Overall Shipping Length
255.70 in
6495.00 mm
Maximum Blade Depth
19.10 in
484.00 mm

Dimensions - VAB In

Transport Height
97.40 in
2475.00 mm

Engine

Displacement
203.00 in³
3.33 l

Dimensions - VAB Out

Maximum Dig Height
322.00 in
8180.00 mm

Certification - Cab

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008

Travel System

Ground Pressure - Maximum Weight
5.50 psi
37.80 kPa
Maximum Traction Force - Low Speed
19064.00 lbf
84.80 kN

Dimensions - VAB Out

Overall Track Width
97.20 in
2470.00 mm

Dimensions - VAB In

Overall Undercarriage Length
126.00 in
3200.00 mm

Dimensions - VAB Out

Tail Swing with Counterweight
62.40 in
1585.00 mm

Dimensions - VAB In

Ground Clearance
14.00 in
356.00 mm

Sound

Average Exterior Sound Pressure (ISO 6395:2008)
99.00 dB(A)
99.00 dB(A)
Operator Sound Pressure (ISO 6396:2008)
72.00 dB(A)
72.00 dB(A)

Dimensions - VAB In

Tail Swing with Counterweight
62.40 in
1585.00 mm

Hydraulic System

Operating Pressure - Swing
3626.00 psi
250.00 bar

Weight Increase from Minimum Configuration

Counterweight
552.00 lb
250.00 kg

Service Refill Capacities

Hydraulic Tank
14.00 gal (US)
53.00 l

Dimensions - VAB Out

Stick Length
71.70 in
1820.00 mm

Engine

Stroke
4.70 in
120.00 mm

Dimensions - VAB In

Maximum Dig Height
205.50 in
5220.00 mm

Blade

Width - Wide
103.90 in
2640.00 mm

Dimensions - VAB Out

Maximum Blade Height
16.10 in
408.00 mm

Hydraulic System

Operating Pressure - Equipment
4134.00 psi
285.00 bar

Travel System

Gradeability - Maximum
30 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.

Dimensions - VAB Out

Boom Swing Right
37.00 in
935.00 mm

Sound

Note
European Union Directive "2000/14/EC"

Engine

Bore
3.70 in
94.00 mm

Dimensions - VAB In

Boom Swing Left
24.00 in
605.00 mm

Dimensions - VAB Out

Boom Swing Left
24.00 in
605.00 mm

Blade

Width - Standard
97.20 in
2470.00 mm

Dimensions - VAB Out

Transport Height
97.40 in
2475.00 mm
Dig Depth
136.20 in
3460.00 mm

Certification - Cab

Tip Over Protective Structure (TOPS)
ISO 12117:1997

Weights

Note (1)
*Minimum Weight is based on rubber 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, standard stick, blade and no bucket.
Minimum Operating Weight*
20121.00 lb
9125.00 kg
Maximum Operating Weight*
21477.00 lb
9740.00 kg

Weight Increase from Minimum Configuration

Standard Stick
77.00 lb
35.00 kg

Hydraulic System

Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9.00 gal/min
33.00 l/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134.00 psi
285.00 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump
35.00 gal/min
131.00 l/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134.00 psi
285.00 bar
Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump
4134.00 psi
285.00 bar
Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump
37.00 gal/min
140.00 l/min
Digging Force - Stick (Short)
9217.00 lbf
41.00 kN

Swing System

Boom Swing - Left
60 degrees
Boom Swing - Right
50 degrees

Dimensions - Short Stick - VAB In

Ground Clearance
14.00 in
356.00 mm
Maximum Reach
253.10 in
6430.00 mm
Transport Height
91.70 in
2330.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Boom Swing Left
24.00 in
605.00 mm
Maximum Reach at Ground Level
244.50 in
6210.00 mm
Maximum Dump Clearance
138.20 in
3510.00 mm
Overall Track Width
97.20 in
2470.00 mm
Overall Shipping Length
255.30 in
6485.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Cab Height
100.00 in
2541.00 mm
Dig Depth
145.70 in
3700.00 mm
Maximum Blade Height
16.10 in
408.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Maximum Dig Height
208.70 in
5300.00 mm
Vertical Wall
95.90 in
2435.00 mm
Maximum Blade Depth
19.10 in
484.00 mm
Boom Swing Right
37.00 in
935.00 mm
Overall Undercarriage Length
126.00 in
3200.00 mm
Stick Length
65.60 in
1665.00 mm
Boom in Reach
122.40 in
3110.00 mm

Dimensions - Short Stick - VAB Out

Cab Height
100.00 in
2541.00 mm
Overall Track Width
97.20 in
2470.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Maximum Reach at Ground Level
298.20 in
7575.00 mm
Overall Undercarriage Length
126.00 in
3200.00 mm
Boom Swing Left
24.00 in
605.00 mm
Vertical Wall
138.20 in
3510.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Transport Height
91.70 in
2330.00 mm
Overall Shipping Length
255.30 in
6485.00 mm
Ground Clearance
14.00 in
356.00 mm
Maximum Reach
305.10 in
7750.00 mm
Boom Swing Right
37.00 in
935.00 mm
Boom in Reach
96.90 in
2460.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Maximum Blade Height
16.10 in
408.00 mm
Dig Depth
130.10 in
3305.00 mm
Stick Length
65.60 in
1665.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Maximum Dig Height
316.70 in
8045.00 mm
Maximum Blade Depth
19.10 in
484.00 mm
Maximum Dump Clearance
242.50 in
6160.00 mm

Engine

Gross Power - SAE J1995
74.30 HP
55.40 kW
Note
Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC
69.50 HP
51.80 kW
Engine Model - U.S. EPA Tier 4 Final/EU Stage V
Cat C3.3B

Sustainability

Recyclability
96%
Features

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, dig-to-blade allows easy clean up and long undercarriage provides improved stability.

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.

UNMATCHED DEALER SUPPORT

  • 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.

HIGH FLOW

  • 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.

SUSTAINABILITY

  • 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).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
Standard Equipment
  • ENGINE
    • Cat C3.3 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
    • Electronic Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO Advanced Hydraulic Oil
    • Dedicated Auxiliary Hydraulic Pump
  • OPERATOR ENVIRONMENT
    • Top Guard ISO 10262 1998 Level I
    • ROPS ISO 12117-2:2008
    • Sealed and Pressurized Cab
    • 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
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
  • BOOM, STICK AND LINKAGES
    • Variable Angle Boom
    • 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
    • 90 Ampere Alternator
    • Circuit Breaker
    • 850 CCA Maintenance Free Battery
    • Battery Disconnect
    • Ignition Key Stop Switch
  • 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
    • Attachments including Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Certified Lifting Eye
  • ELECTRICAL
    • Product Link Elite (regulations apply)
    • Travel Alarm
    • Rearview Camera
    • Rotating Beacon
  • GUARDING
    • Mesh Front Guard ISO 10262 1998 Level I
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Overhead Cab Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A
    • Track Guards
  • OTHER
    • Additional Counterweight
    • Water Jacket Heater
    • Refueling Pump