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306 CR Mini Hydraulic Excavator

The Cat® 306 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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SPECIFICATION SUMMARY
  • Displacement 148 in³
  • Gross Power - ISO 14396 57.9 HP
  • Engine Model Cat C2.4 Turbo
  • Net Power 55.9 HP

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Displacement
    148 in³
  • Gross Power - ISO 14396
    57.9 HP
  • Engine Model
    Cat C2.4 Turbo
  • Net Power
    55.9 HP
  • Bore
    3.4 in
  • Stroke
    4 in

Dimensions - Long Stick

  • Tail Swing without Counterweight
    53 in
  • Dig Depth
    162 in
  • Maximum Blade Height
    16 in
  • O/A Track Width
    78 in
  • Track Belt/Shoe Width
    16 in
  • Vertical Wall
    125 in
  • Boom In Reach
    117 in
  • Maximum Blade Depth
    24 in
  • Maximum Dig Height
    241 in
  • Swing Bearing - Height
    27 in
  • O/A Undercarriage Length
    102 in
  • O/A Shipping Length
    234 in
  • Maximum Reach
    263 in
  • Boom Swing - Left
    29 in
  • Boom Swing - Right
    36 in
  • Maximum Dump Clearance
    182 in
  • Maximum Reach - Ground Level
    257 in

Weights

  • Note (2)
    **Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
  • Operating Weight
    15766 lb
  • Note (1)
    *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.

Travel System

  • Gradeability - Maximum
    30 degrees
  • Maximum Traction Force - High Speed
    6969 lbf
  • Maximum Traction Force - Low Speed
    12589 lbf
  • Travel Speed - High
    3.1 mile/h
  • Travel Speed - Low
    1.7 mile/h

Service Refill Capacities

  • Cooling System
    2.6 gal (US)
  • Hydraulic System
    27.5 gal (US)
  • Hydraulic Tank
    14 gal (US)
  • Engine Oil
    2.1 gal (US)
  • Fuel Tank
    34.3 gal (US)

Hydraulic System

  • Operating Pressure - Travel
    3553 psi
  • Digging Force - Bucket
    11578 lbf
  • Type
    Load Sensing Hydraulics with Variable Displacement Piston Pump
  • Operating Pressure - Equipment
    3553 psi
  • Digging Force - Stick - Standard
    6632 lbf
  • Operating Pressure - Swing
    3263 psi
  • Digging Force - Stick - Long
    5957 lbf
  • Pump Flow at 2,400 rpm
    40 gal/min

Swing System

  • Machine Swing Speed
    11 r/min
  • Boom Swing - Right
    65 degrees
  • Boom Swing - Left
    60 degrees

Sound

  • Note
    European Union Directive “2000/14/EC”

Dimensions - Standard Stick

  • Track Belt/Shoe Width
    16 in
  • Maximum Reach
    248 in
  • Vertical Wall
    107 in
  • Swing Bearing - Height
    27 in
  • Maximum Reach - Ground Level
    241 in
  • Maximum Blade Height
    16 in
  • Boom In Reach
    98 in
  • Boom Swing - Right
    36 in
  • Cab Height
    100 in
  • Maximum Dump Clearance
    170 in
  • Boom Swing - Left
    29 in
  • O/A Undercarriage Length
    102 in
  • Maximum Dig Height
    230 in
  • Maximum Blade Depth
    24 in
  • O/A Track Width
    78 in
  • Dig Depth
    146 in
  • O/A Shipping Length
    235 in

Air Conditioning System

  • Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1287). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.

ALL DAY COMFORT

  • Your choice of a canopy (availability dependent on region) or a sealed and pressurized cab 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 Cat Stick Steer. 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 help you get the job done more efficiently.

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. An optional 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.

CHOICES

  • Configure the machine to meet your specific application needs with a straight blade, angle blade, or Extra Tool Carrier (XTC).

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.

Standard Equipment:

  • Operator Environment – Cab And Canopy
    • 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
    • Hydraulic Lockout Controls
    • High Back, Suspension Seat
    • Retractable Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • Literature Holder
    • Mounting Bosses for Top and Front Guards
    • Signaling/Warning Horn
    • Cab and (left side) Boom Work Lights
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – 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
  • Operator Environment – Cab Only
    • Operator Sound Pressure 72 dB(A) ISO 6396:2008
    • HVAC with Automatic Temperature Control
    • Integrated Lower Front Window
    • Assisted Front Window Overhead Storage
    • Rear Window Emergency Exit
    • LED Interior Light
    • 12V Power Socket
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only)
    • Skylight
    • Jog dial interface
  • Undercarriage
    • Greased and Lubricated Track
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Straight Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
    • Rubber Tracks
  • Boom, Stick And Linkages
    • One Piece Boom (3055 mm/120.3 in)
    • Standard Stick (1580 mm/62.2 in)
    • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler for Cat Tools
    • Thumb Ready
  • Electrical
    • 12 Volt Electrical System
    • 90 Ampere Alternator
    • 650 CCA Maintenance Free Battery
    • Battery Disconnect
    • Circuit Breaker
    • Ignition Key Stop Switch
    • Signaling/Warning Horn
    • Product Link Basic (regulations apply)
    • Travel Alarm
  • Other
    • Locks on External Enclosure Doors
    • Lockable Fuel Cap
    • Beacon Socket
    • Rear Reflectors

Optional Equipment:

  • Operator Environment – Cab And Canopy
    • 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
  • Operator Environment – Cab Only
    • Cab Heat Only
    • Air Suspension Heated Seat
  • Undercarriage
    • Angle Blade
    • Extra Tool Carrier (XTC)
    • Steel Tracks (450 mm/17.7 in wide)
    • Steel Track with Rubber Pads
  • Boom, Stick And Linkages
    • Long Stick (190 mm/78 in)
    • 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)
    • Camera
    • Rotating Beacon
  • Guarding
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Mesh Front Guard ISO 10262 1998 Level I
    • Overhead Cab Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A (Cab Only)
    • Track Guards
  • Other
    • Additional Counterweight
    • Water Jacket Heater
    • Refueling Pump