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.
Net Power 55.9 hp
Operating Weight 15766 lb
Dig Depth 162 in
Swing Bearing - Height 27 in
Bore 3.4in
Displacement 148in³
Engine Model Cat C2.4 Turbo
Gross Power - ISO 14396 57.9hp
Net Power 55.9hp
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 55.9hp
Stroke 4in
Maximum Operating Weight with Cab** 15766lb
Maximum Operating Weight with Canopy** 15633lb
Minimum Operating Weight with Cab* 14266lb
Minimum Operating Weight with Canopy* 14134lb
Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, fixed blade and no bucket.
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 15766lb
Boom In Reach 117in
Boom Swing - Left 29in
Boom Swing - Right 36in
Cab Height 100in
Dig Depth 162in
Ground Clearance 12in
Maximum Blade Depth 24in
Maximum Blade Height 16in
Maximum Dig Height 241in
Maximum Dump Clearance 182in
Maximum Reach 263in
Maximum Reach - Ground Level 257in
O/A Shipping Length 234in
O/A Track Width 78in
O/A Undercarriage Length 102in
Stick Length 78in
Swing Bearing - Height 27in
Tail Swing with Counterweight 58in
Tail Swing without Counterweight 53in
Track Belt/Shoe Width 16in
Transport Height 95in
Vertical Wall 125in
Width over Upper House 77in
Boom In Reach 98in
Boom Swing - Left 29in
Boom Swing - Right 36in
Cab Height 100in
Dig Depth 146in
Ground Clearance 12in
Maximum Blade Depth 24in
Maximum Blade Height 16in
Maximum Dig Height 230in
Maximum Dump Clearance 170in
Maximum Reach 248in
Maximum Reach - Ground Level 241in
O/A Shipping Length 235in
O/A Track Width 78in
O/A Undercarriage Length 102in
Stick Length 62in
Swing Bearing - Height 27in
Tail Swing with Counterweight 58in
Tail Swing without Counterweight 53in
Track Belt/Shoe Width 16in
Transport Height 69in
Vertical Wall 107in
Width over Upper House 77in
Recyclability 96%
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.
Angle Blade 225lb
Counterweight 551lb
Long Stick 97lb
Steel Tracks with Pads 827lb
XTC Carriage (no tool) 141lb
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 5.7psi
Ground Pressure - Minimum Weight 5.1psi
Maximum Traction Force - High Speed 6969lbf
Maximum Traction Force - Low Speed 12589lbf
Travel Speed - High 3.1mile/h
Travel Speed - Low 1.7mile/h
Cooling System 2.6gal (US)
Engine Oil 2.1gal (US)
Fuel Tank 34.3gal (US)
Hydraulic System 27.5gal (US)
Hydraulic Tank 14gal (US)
Auxiliary Circuit - Primary - Flow 24gal/min
Auxiliary Circuit - Primary - Pressure 3553psi
Auxiliary Circuit - Secondary - Flow 9gal/min
Auxiliary Circuit - Secondary - Pressure 3553psi
Digging Force - Bucket 11578lbf
Digging Force - Stick - Long 5957lbf
Digging Force - Stick - Standard 6632lbf
Operating Pressure - Equipment 3553psi
Operating Pressure - Swing 3263psi
Operating Pressure - Travel 3553psi
Pump Flow at 2,400 rpm 40gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Boom Swing - Left 60 degrees
Boom Swing - Right 65 degrees
Machine Swing Speed 11r/min
Angle Blade Height 15.7in
Angle Blade Width 78in
Straight Blade Height 15.4in
Straight Blade Width 78in
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level II)
Average Exterior Sound Pressure (ISO 6395:2008) 99dB(A)
Note European Union Directive “2000/14/EC”
Operator Sound Pressure (ISO 6396:2008) 72dB(A)
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 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
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
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
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
Locks on External Enclosure Doors
Lockable Fuel Cap
Beacon Socket
Rear Reflectors
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
Cab Heat Only
Air Suspension Heated Seat
Angle Blade
Extra Tool Carrier (XTC)
Steel Tracks (450 mm/17.7 in wide)
Steel Track with Rubber Pads
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
Product Link Elite (regulations apply)
Camera
Rotating Beacon
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
Additional Counterweight
Water Jacket Heater
Refueling Pump
