306 CR

Heavy Equipment

306 CR

Net Power
55.9 HP / 41.7 kW
Operating Weight
15766 lb / 7150 kg
Gross Power - ISO 14396
57.9 HP / 43.2 kW

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.

Engine
Engine Model Cat C2.4 Turbo
Net Power 55.9 HP / 41.7 kW
Gross Power - ISO 14396 57.9 HP / 43.2 kW
Displacement 148 in³ / 2.43 l
Bore 3.4 in / 87 mm
Stroke 4 in / 102.4 mm
Rated Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 55.9 HP / 41.7 kW
Weights
Operating Weight 15766 lb / 7150 kg
Minimum Operating Weight with Canopy* 14134 lb / 6410 kg
Maximum Operating Weight with Canopy** 15633 lb / 7090 kg
Note (2) **Maximum Weight is based on steel tracks with pads, extra counterweight, operator, full fuel tank, long stick, fixed blade and no bucket.
Maximum Operating Weight with Cab** 15766 lb / 7150 kg
Minimum Operating Weight with Cab* 14266 lb / 6470 kg
Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
Weight Increase from Minimum Configuration
Counterweight 551 lb / 250 kg
Long Stick 97 lb / 44 kg
Steel Tracks with Pads 827 lb / 375 kg
Angle Blade 225 lb / 102 kg
XTC Carriage (no tool) 141 lb / 64 kg
Travel System
Ground Pressure - Minimum Weight 5.1 psi / 35.4 kPa
Ground Pressure - Maximum Weight 5.7 psi / 39.1 kPa
Gradeability - Maximum 30 degrees
Maximum Traction Force - High Speed 6969 lbf / 31 kN
Maximum Traction Force - Low Speed 12589 lbf / 56 kN
Travel Speed - High 3.1 mile/h / 5 km/h
Travel Speed - Low 1.7 mile/h / 2.8 km/h
Service Refill Capacities
Cooling System 2.6 gal (US) / 10 l
Hydraulic System 27.5 gal (US) / 104 l
Hydraulic Tank 14 gal (US) / 53 l
Engine Oil 2.1 gal (US) / 8 l
Fuel Tank 34.3 gal (US) / 130 l
Hydraulic System
Operating Pressure - Travel 3553 psi / 24500 kPa
Auxiliary Circuit - Primary - Flow 24 gal/min / 90 l/min
Digging Force - Bucket 11578 lbf / 51.5 kN
Auxiliary Circuit - Primary - Pressure 3553 psi / 24500 kPa
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow 9 gal/min / 33 l/min
Operating Pressure - Equipment 3553 psi / 24500 kPa
Auxiliary Circuit - Secondary - Pressure 3553 psi / 24500 kPa
Digging Force - Stick - Standard 6632 lbf / 29.5 kN
Operating Pressure - Swing 3263 psi / 22500 kPa
Digging Force - Stick - Long 5957 lbf / 26.5 kN
Pump Flow at 2,400 rpm 40 gal/min / 151 l/min
Swing System
Boom Swing - Right 65 degrees
Boom Swing - Left 60 degrees
Machine Swing Speed 11 r/min
Blade
Straight Blade Width 78 in / 1980 mm
Angle Blade Width 78 in / 1980 mm
Straight Blade Height 15.4 in / 390 mm
Angle Blade Height 15.7 in / 400 mm
Certification - Cab
Top Guard ISO 10262:1998 (Level II)
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
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”
Dimensions - Standard Stick
Track Belt/Shoe Width 16 in / 400 mm
Maximum Reach 248 in / 6295 mm
Stick Length 62 in / 1580 mm
Vertical Wall 107 in / 2710 mm
Swing Bearing - Height 27 in / 672 mm
Maximum Reach - Ground Level 241 in / 6130 mm
Maximum Blade Height 16 in / 415 mm
Ground Clearance 12 in / 306 mm
Boom In Reach 98 in / 2485 mm
Boom Swing - Right 36 in / 910 mm
Transport Height 69 in / 1755 mm
Tail Swing with Counterweight 58 in / 1475 mm
Cab Height 100 in / 2545 mm
Width over Upper House 77 in / 1950 mm
Maximum Dump Clearance 170 in / 4325 mm
Tail Swing without Counterweight 53 in / 1350 mm
Boom Swing - Left 29 in / 735 mm
O/A Undercarriage Length 102 in / 2580 mm
Maximum Dig Height 230 in / 5835 mm
Maximum Blade Depth 24 in / 600 mm
O/A Track Width 78 in / 1980 mm
Dig Depth 146 in / 3710 mm
O/A Shipping Length 235 in / 5975 mm
Dimensions - Long Stick
Maximum Blade Height 16 in / 415 mm
O/A Track Width 78 in / 1980 mm
Track Belt/Shoe Width 16 in / 400 mm
Tail Swing with Counterweight 58 in / 1475 mm
Vertical Wall 125 in / 3165 mm
Boom In Reach 117 in / 2960 mm
Maximum Blade Depth 24 in / 600 mm
Maximum Dig Height 241 in / 6130 mm
Transport Height 95 in / 2410 mm
Stick Length 78 in / 1980 mm
Ground Clearance 12 in / 306 mm
Swing Bearing - Height 27 in / 672 mm
Width over Upper House 77 in / 1950 mm
O/A Undercarriage Length 102 in / 2580 mm
O/A Shipping Length 234 in / 5950 mm
Dig Depth 162 in / 4110 mm
Cab Height 100 in / 2545 mm
Maximum Reach 263 in / 6685 mm
Boom Swing - Left 29 in / 735 mm
Tail Swing without Counterweight 53 in / 1350 mm
Boom Swing - Right 36 in / 910 mm
Maximum Dump Clearance 182 in / 4610 mm
Maximum Reach - Ground Level 257 in / 6535 mm
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.

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
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