New CAT Equipment

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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Product Specs

Engine

Engine Model Cat C2.4 Turbo
Net Power 55.9 HP
Gross Power - ISO 14396 57.9 HP
Displacement 148 in³
Bore 3.4 in
Stroke 4 in
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 55.9 HP

Weights

Operating Weight 15766 lb
Minimum Operating Weight with Canopy* 14134 lb
Maximum Operating Weight with Canopy** 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** 15766 lb
Minimum Operating Weight with Cab* 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 551 lb
Long Stick 97 lb
Steel Tracks with Pads 827 lb
Angle Blade 225 lb
XTC Carriage (no tool) 141 lb

Travel System

Ground Pressure - Minimum Weight 5.1 psi
Ground Pressure - Maximum Weight 5.7 psi
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
Auxiliary Circuit - Primary - Flow 24 gal/min
Digging Force - Bucket 11578 lbf
Auxiliary Circuit - Primary - Pressure 3553 psi
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Auxiliary Circuit - Secondary - Flow 9 gal/min
Operating Pressure - Equipment 3553 psi
Auxiliary Circuit - Secondary - Pressure 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

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

Blade

Straight Blade Width 78 in
Angle Blade Width 78 in
Straight Blade Height 15.4 in
Angle Blade Height 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)
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
Maximum Reach 248 in
Stick Length 62 in
Vertical Wall 107 in
Swing Bearing - Height 27 in
Maximum Reach - Ground Level 241 in
Maximum Blade Height 16 in
Ground Clearance 12 in
Boom In Reach 98 in
Boom Swing - Right 36 in
Transport Height 69 in
Tail Swing with Counterweight 58 in
Cab Height 100 in
Width over Upper House 77 in
Maximum Dump Clearance 170 in
Tail Swing without Counterweight 53 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

Dimensions - Long Stick

Maximum Blade Height 16 in
O/A Track Width 78 in
Track Belt/Shoe Width 16 in
Tail Swing with Counterweight 58 in
Vertical Wall 125 in
Boom In Reach 117 in
Maximum Blade Depth 24 in
Maximum Dig Height 241 in
Transport Height 95 in
Stick Length 78 in
Ground Clearance 12 in
Swing Bearing - Height 27 in
Width over Upper House 77 in
O/A Undercarriage Length 102 in
O/A Shipping Length 234 in
Dig Depth 162 in
Cab Height 100 in
Maximum Reach 263 in
Boom Swing - Left 29 in
Tail Swing without Counterweight 53 in
Boom Swing - Right 36 in
Maximum Dump Clearance 182 in
Maximum Reach - Ground Level 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.