With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
With our huge inventory of new, used and rental equipment, WesTrac has the right machine for the job.
Keep your operation working around the clock by making WesTrac your partner in parts. With over 75,000 product lines stocked in our warehouses, ready-to-go, we won't let you down.
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.
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 | 41.7 kW | 55.9 hp |
Gross Power - ISO 14396 | 43.2 kW | 57.9 hp |
Displacement | 2.43 l | 148 in³ |
Bore | 87 mm | 3.4 in |
Stroke | 102.4 mm | 4 in |
Engine Model | Cat C2.4 Turbo | Cat C2.4 Turbo |
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 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. | *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 | 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 | 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 | 65 degrees |
Boom Swing - Left | 60 degrees | 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) | ISO 10262:1998 (Level II) |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 | ISO 12117-2:2008 |
Tip Over Protective Structure (TOPS) | ISO 12117:1997 | 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 “2000/14/EC” | European Union Directive “2000/14/EC” |
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
Dig Depth | 4110 mm | 162 in |
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 |
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. | 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. |
Sustainability
Recyclability | 96% | 96% |
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 |
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 |
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 | 41.7 kW | 55.9 hp |
Gross Power - ISO 14396 | 43.2 kW | 57.9 hp |
Displacement | 2.43 l | 148 in³ |
Bore | 87 mm | 3.4 in |
Stroke | 102.4 mm | 4 in |
Engine Model | Cat C2.4 Turbo | Cat C2.4 Turbo |
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 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. | *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 | 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 | 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 | 65 degrees |
Boom Swing - Left | 60 degrees | 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) | ISO 10262:1998 (Level II) |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 | ISO 12117-2:2008 |
Tip Over Protective Structure (TOPS) | ISO 12117:1997 | 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 “2000/14/EC” | European Union Directive “2000/14/EC” |
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
Dig Depth | 4110 mm | 162 in |
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 |
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. | 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. |
Sustainability
Recyclability | 96% | 96% |
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 |
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 |