306 CR Mini Hydraulic Excavator

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CALCULATE FINANCE

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.
Engine
Engine Model Cat C2.4 Turbo
Net Power 41.7 kW (55.9 HP)
Gross Power - ISO 14396 43.2 kW (57.9 HP)
Displacement 2.43 l (148 inu00b3)
Bore 87 mm (3.4 in)
Stroke 102.4 mm (4 in)
Rated Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 41.7 kW (55.9 HP)
Weights
Operating Weight 7150 kg (15766 lb)
Minimum Operating Weight with Canopy* 6410 kg (14134 lb)
Maximum Operating Weight with Canopy** 7090 kg (15633 lb)
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** 7150 kg (15766 lb)
Minimum Operating Weight with Cab* 6470 kg (14266 lb)
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 250 kg (551 lb)
Long Stick 44 kg (97 lb)
Steel Tracks with Pads 375 kg (827 lb)
Angle Blade 102 kg (225 lb)
XTC Carriage (no tool) 64 kg (141 lb)
Travel System
Ground Pressure - Minimum Weight 35.4 kPa (5.1 psi)
Ground Pressure - Maximum Weight 39.1 kPa (5.7 psi)
Gradeability - Maximum 30 degrees
Maximum Traction Force - High Speed 31 kN (6969 lbf)
Maximum Traction Force - Low Speed 56 kN (12589 lbf)
Travel Speed - High 5 km/h (3.1 mile/h)
Travel Speed - Low 2.8 km/h (1.7 mile/h)
Service Refill Capacities
Cooling System 10 l (2.6 gal (US))
Hydraulic System 104 l (27.5 gal (US))
Hydraulic Tank 53 l (14 gal (US))
Engine Oil 8 l (2.1 gal (US))
Fuel Tank 130 l (34.3 gal (US))
Hydraulic System
Operating Pressure - Travel 24500 kPa (3553 psi)
Auxiliary Circuit - Primary - Flow 90 l/min (24 gal/min)
Digging Force - Bucket 51.5 kN (11578 lbf)
Auxiliary Circuit - Primary - Pressure 24500 kPa (3553 psi)
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow 33 l/min (9 gal/min)
Operating Pressure - Equipment 24500 kPa (3553 psi)
Auxiliary Circuit - Secondary - Pressure 24500 kPa (3553 psi)
Digging Force - Stick - Standard 29.5 kN (6632 lbf)
Operating Pressure - Swing 22500 kPa (3263 psi)
Digging Force - Stick - Long 26.5 kN (5957 lbf)
Pump Flow at 2,400 rpm 151 l/min (40 gal/min)
Swing System
Boom Swing - Right 65 degrees
Boom Swing - Left 60 degrees
Machine Swing Speed 11 r/min (11 r/min)
Blade
Straight Blade Width 1980 mm (78 in)
Angle Blade Width 1980 mm (78 in)
Straight Blade Height 390 mm (15.4 in)
Angle Blade Height 400 mm (15.7 in)
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) (72 dB(A))
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) (99 dB(A))
Note European Union Directive u201c2000/14/ECu201d
Dimensions - Standard Stick
Track Belt/Shoe Width 400 mm (16 in)
Maximum Reach 6295 mm (248 in)
Stick Length 1580 mm (62 in)
Vertical Wall 2710 mm (107 in)
Swing Bearing - Height 672 mm (27 in)
Maximum Reach - Ground Level 6130 mm (241 in)
Maximum Blade Height 415 mm (16 in)
Ground Clearance 306 mm (12 in)
Boom In Reach 2485 mm (98 in)
Boom Swing - Right 910 mm (36 in)
Transport Height 1755 mm (69 in)
Tail Swing with Counterweight 1475 mm (58 in)
Cab Height 2545 mm (100 in)
Width over Upper House 1950 mm (77 in)
Maximum Dump Clearance 4325 mm (170 in)
Tail Swing without Counterweight 1350 mm (53 in)
Boom Swing - Left 735 mm (29 in)
O/A Undercarriage Length 2580 mm (102 in)
Maximum Dig Height 5835 mm (230 in)
Maximum Blade Depth 600 mm (24 in)
O/A Track Width 1980 mm (78 in)
Dig Depth 3710 mm (146 in)
O/A Shipping Length 5975 mm (235 in)
Dimensions - Long Stick
Maximum Blade Height 415 mm (16 in)
O/A Track Width 1980 mm (78 in)
Track Belt/Shoe Width 400 mm (16 in)
Tail Swing with Counterweight 1475 mm (58 in)
Vertical Wall 3165 mm (125 in)
Boom In Reach 2960 mm (117 in)
Maximum Blade Depth 600 mm (24 in)
Maximum Dig Height 6130 mm (241 in)
Transport Height 2410 mm (95 in)
Stick Length 1980 mm (78 in)
Ground Clearance 306 mm (12 in)
Swing Bearing - Height 672 mm (27 in)
Width over Upper House 1950 mm (77 in)
O/A Undercarriage Length 2580 mm (102 in)
O/A Shipping Length 5950 mm (234 in)
Dig Depth 4110 mm (162 in)
Cab Height 2545 mm (100 in)
Maximum Reach 6685 mm (263 in)
Boom Swing - Left 735 mm (29 in)
Tail Swing without Counterweight 1350 mm (53 in)
Boom Swing - Right 910 mm (36 in)
Maximum Dump Clearance 4610 mm (182 in)
Maximum Reach - Ground Level 6535 mm (257 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.

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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