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® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
The Cat® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
Net Power | 51.8 kW | 69.5 hp |
Engine Model | Cat C3.3B | Cat C3.3B |
Stroke | 120 mm | 4.7 in |
Bore | 94 mm | 3.7 in |
Gross Power - SAE J1995:2014 | 55.4 kW | 74.3 hp |
Displacement | 3.33 l | 203 in³ |
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 51.8 kW | 69.5 hp |
Weights
Operating Weight | 8387 kg | 18493 lb |
Note (1) | *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. | *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. |
Note (2) | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. |
Maximum Operating Weight with Cab** | 8387 kg | 18493 lb |
Minimum Operating Weight with Cab* | 7502 kg | 16542 lb |
Weight Increase from Minimum Configuration
Steel Tracks with Pads | 341 kg | 752 lb |
Counterweight | 250 kg | 552 lb |
Long Stick | 66 kg | 146 lb |
Travel System
Maximum Traction Force - High Speed | 27.8 kN | 6250 lb |
Ground Pressure - Maximum Weight | 37.6 kPa | 5.5 psi |
Ground Pressure - Minimum Weight | 33.8 kPa | 4.9 psi |
Travel Speed - High | 5.1 km/h | 3.2 mile/h |
Travel Speed - Low | 3.1 km/h | 1.9 mile/h |
Maximum Traction Force - Low Speed | 67.5 kN | 15175 lb |
Gradeability - Maximum | 30 degrees | 30 degrees |
Service Refill Capacities
Fuel Tank | 147 l | 39 gal (US) |
Hydraulic System | 110 l | 29 gal (US) |
Hydraulic Tank | 53 l | 14 gal (US) |
Cooling System | 10 l | 2.6 gal (US) |
Engine Oil | 11.2 l | 3 gal (US) |
Hydraulic System
Digging Force - Bucket | 62 kN | 13946 lb |
Operating Pressure - Travel | 285 bar | 4134 psi |
Operating Pressure - Swing | 250 bar | 3626 psi |
Operating Pressure - Equipment | 285 bar | 4134 psi |
Digging Force - Stick - Long | 35.7 kN | 8032 lb |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
Pump Flow at 2,400 rpm | 167 l/min | 44 gal/min |
Digging Force - Stick - Standard | 42.3 kN | 9509 lb |
Maximum Auxiliary Circuit - Primary - Pressure at Pump | 285 bar | 4134 psi |
Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 285 bar | 4134 psi |
Maximum Auxiliary Circuit - Primary - Flow at Pump | 131 l/min | 35 gal/min |
Maximum Auxiliary Circuit - Secondary - Flow at Pump | 33 l/min | 9 gal/min |
Swing System
Machine Swing Speed | 10.6 r/min | 10.6 r/min |
Boom Swing - Right | 50 degrees | 50 degrees |
Boom Swing - Left | 60 degrees | 60 degrees |
Blade
Height | 431 mm | 17 in |
Width - Standard | 2300 mm | 90.6 in |
Width - Wide | 2450 mm | 96.5 in |
Certification - Cab
Top Guard | ISO 10262:1998 (Level I) | ISO 10262:1998 (Level I) |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 | ISO 12117-2:2008 |
Sound
Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Note | European Union Directive "2000/14/EC" | European Union Directive "2000/14/EC" |
Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) | 99 dB(A) |
Dimensions - Standard Stick
Cab Height | 2541 mm | 100 in |
Vertical Wall | 2991 mm | 117.8 in |
Boom In Reach | 3059 mm | 120.4 in |
Tail Swing with Counterweight | 1585 mm | 62.4 in |
Boom Swing - Right | 935 mm | 36.8 in |
Track Belt/Shoe Width | 450 mm | 17.7 in |
Maximum Reach | 7141 mm | 281.1 in |
Stick Length | 1820 mm | 71.7 in |
Maximum Blade Height | 370 mm | 14.6 in |
Boom Swing - Left | 604 mm | 23.8 in |
Maximum Blade Depth | 407 mm | 16 in |
O/A Track Width | 2300 mm | 90.6 in |
Maximum Dig Height | 6736 mm | 265.2 in |
Maximum Dump Clearance | 4760 mm | 187.4 in |
Maximum Reach - Ground Level | 6949 mm | 273.6 in |
Tail Swing without Counterweight | 1450 mm | 57.1 in |
O/A Undercarriage Length | 2880 mm | 113.4 in |
Swing Bearing - Height | 756 mm | 29.7 in |
Ground Clearance | 350 mm | 13.8 in |
Dig Depth | 4108 mm | 161.7 in |
Note | *Boom Height when stick is pinned in transport position with no attachments. | *Boom Height when stick is pinned in transport position with no attachments. |
Overall Shipping Length - with Counterweight | 6706 mm | 264 in |
Note (1) | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. |
Overall Shipping Length - without Counterweight | 6574 mm | 258.8 in |
Note (2) | ***With blade positioned at the rear of the machine. | ***With blade positioned at the rear of the machine. |
Height - Boom Working - With Tools** | 2660 mm | 104.7 in |
Height - Boom Transport - No Tools* | 2430 mm | 95.7 in |
Dimensions - Long Stick
Dig Depth | 4643 mm | 182.8 in |
Boom Swing - Left | 604 mm | 23.8 in |
Maximum Dig Height | 7039 mm | 277.1 in |
Maximum Blade Height | 370 mm | 14.6 in |
Track Belt/Shoe Width | 450 mm | 17.7 in |
Cab Height | 2541 mm | 100 in |
Tail Swing with Counterweight | 1585 mm | 62.4 in |
O/A Undercarriage Length | 2880 mm | 113.4 in |
Maximum Dump Clearance | 5072 mm | 199.7 in |
Boom Swing - Right | 935 mm | 36.8 in |
Maximum Blade Depth | 407 mm | 16 in |
Ground Clearance | 350 mm | 13.8 in |
Stick Length | 2358 mm | 92.8 in |
Maximum Reach | 7637 mm | 300.7 in |
Maximum Reach - Ground Level | 7460 mm | 293.7 in |
Boom In Reach | 3215 mm | 126.6 in |
Swing Bearing - Height | 756 mm | 29.7 in |
O/A Track Width | 2300 mm | 90.6 in |
Tail Swing without Counterweight | 1450 mm | 57.1 in |
Vertical Wall | 3404 mm | 134 in |
Note | *Boom Height when stick is pinned in transport position with no attachments. | *Boom Height when stick is pinned in transport position with no attachments. |
Note (2) | ***With blade positioned at the rear of the machine. | ***With blade positioned at the rear of the machine. |
Note (1) | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. |
Height - Boom Transport - No Tools* | 2260 mm | 89 in |
Height - Boom Working - With Tools** | 3050 mm | 120.1 in |
Overall Shipping Length - without Counterweight | 6872 mm (270.6 in)*** | 6872 mm (270.6 in)*** |
Overall Shipping Length - with Counterweight | 6872 mm (270.6 in)*** | 6872 mm (270.6 in)*** |
Air Conditioning System
Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. |
Sustainability
Recyclability | 96% | 96% |
ENGINE
Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF) |
Automatic Engine Idle |
Automatic Engine Shutdown |
Automatic Swing Brake |
Automatic Two Speed Travel |
Fuel Water Separator with Indicator |
Radial Seal – Double Element Air Filter |
Extended Life Coolant, –37° C (–35° F) |
HYDRAULICS
Electronic Variable Displacement Piston Pump |
Load Sensing/Flow Sharing Hydraulics |
Power On Demand |
Hydraulic Temperature Monitoring |
Certified Accumulator |
HYDO Advanced Hydraulic Oil |
OPERATOR ENVIRONMENT
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 |
HVAC with Automatic Temperature Control |
Hydraulic Lockout Controls |
Integrated Lower Front Window |
Assisted Front Window Overhead Storage |
Rear Window Emergency Exit |
Fabric, High Back, Suspension Seat |
Retractable Seat Belt (75 mm/3 in) |
Coat Hook |
Cup Holder |
LED Interior Light |
Literature Holder |
Mounting Bosses for Top and Front Guards |
12V Power Socket |
Radio – Bluetooth, Auxiliary, Microphone, USB (charging only) |
Skylight |
Signaling/Warning Horn |
Cab and (left side) Boom Work Lights |
Utility Space for Mobile Phone |
Next Generation Color LCD Monitor (IP66) – Jog Dial Interface – 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 |
UNDERCARRIAGE
Greased and Lubricated Track |
Tie Down Eyes on Track Frame |
Dozer Blade |
Dozer Float |
Bolt-on, Reversible Wear Edge |
BOOM, STICK AND LINKAGES
One Piece Boom (3400 mm/133.9 in) |
Standard Stick (1820 mm/71.7 in) |
Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions) |
Thumb Ready (not available in all regions) |
ELECTRICAL
12 Volt Electrical System |
60 Ampere Alternator |
Circuit Breaker |
900 CCA Maintenance Free Battery |
Battery Disconnect |
Ignition Key Stop Switch |
OTHER
Locks on External Enclosure Doors |
Lockable Fuel Cap |
Beacon Socket |
Rear Reflectors |
TECHNOLOGY
Product Link Basic |
OPERATOR ENVIRONMENT
Push to Start with Bluetooth® Key |
Air Suspension Heated Seat |
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® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.
Net Power | 51.8 kW | 69.5 hp |
Engine Model | Cat C3.3B | Cat C3.3B |
Stroke | 120 mm | 4.7 in |
Bore | 94 mm | 3.7 in |
Gross Power - SAE J1995:2014 | 55.4 kW | 74.3 hp |
Displacement | 3.33 l | 203 in³ |
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 51.8 kW | 69.5 hp |
Weights
Operating Weight | 8387 kg | 18493 lb |
Note (1) | *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. | *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. |
Note (2) | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. |
Maximum Operating Weight with Cab** | 8387 kg | 18493 lb |
Minimum Operating Weight with Cab* | 7502 kg | 16542 lb |
Weight Increase from Minimum Configuration
Steel Tracks with Pads | 341 kg | 752 lb |
Counterweight | 250 kg | 552 lb |
Long Stick | 66 kg | 146 lb |
Travel System
Maximum Traction Force - High Speed | 27.8 kN | 6250 lb |
Ground Pressure - Maximum Weight | 37.6 kPa | 5.5 psi |
Ground Pressure - Minimum Weight | 33.8 kPa | 4.9 psi |
Travel Speed - High | 5.1 km/h | 3.2 mile/h |
Travel Speed - Low | 3.1 km/h | 1.9 mile/h |
Maximum Traction Force - Low Speed | 67.5 kN | 15175 lb |
Gradeability - Maximum | 30 degrees | 30 degrees |
Service Refill Capacities
Fuel Tank | 147 l | 39 gal (US) |
Hydraulic System | 110 l | 29 gal (US) |
Hydraulic Tank | 53 l | 14 gal (US) |
Cooling System | 10 l | 2.6 gal (US) |
Engine Oil | 11.2 l | 3 gal (US) |
Hydraulic System
Digging Force - Bucket | 62 kN | 13946 lb |
Operating Pressure - Travel | 285 bar | 4134 psi |
Operating Pressure - Swing | 250 bar | 3626 psi |
Operating Pressure - Equipment | 285 bar | 4134 psi |
Digging Force - Stick - Long | 35.7 kN | 8032 lb |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
Pump Flow at 2,400 rpm | 167 l/min | 44 gal/min |
Digging Force - Stick - Standard | 42.3 kN | 9509 lb |
Maximum Auxiliary Circuit - Primary - Pressure at Pump | 285 bar | 4134 psi |
Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 285 bar | 4134 psi |
Maximum Auxiliary Circuit - Primary - Flow at Pump | 131 l/min | 35 gal/min |
Maximum Auxiliary Circuit - Secondary - Flow at Pump | 33 l/min | 9 gal/min |
Swing System
Machine Swing Speed | 10.6 r/min | 10.6 r/min |
Boom Swing - Right | 50 degrees | 50 degrees |
Boom Swing - Left | 60 degrees | 60 degrees |
Blade
Height | 431 mm | 17 in |
Width - Standard | 2300 mm | 90.6 in |
Width - Wide | 2450 mm | 96.5 in |
Certification - Cab
Top Guard | ISO 10262:1998 (Level I) | ISO 10262:1998 (Level I) |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 | ISO 12117-2:2008 |
Sound
Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) | 72 dB(A) |
Note | European Union Directive "2000/14/EC" | European Union Directive "2000/14/EC" |
Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) | 99 dB(A) |
Dimensions - Standard Stick
Cab Height | 2541 mm | 100 in |
Vertical Wall | 2991 mm | 117.8 in |
Boom In Reach | 3059 mm | 120.4 in |
Tail Swing with Counterweight | 1585 mm | 62.4 in |
Boom Swing - Right | 935 mm | 36.8 in |
Track Belt/Shoe Width | 450 mm | 17.7 in |
Maximum Reach | 7141 mm | 281.1 in |
Stick Length | 1820 mm | 71.7 in |
Maximum Blade Height | 370 mm | 14.6 in |
Boom Swing - Left | 604 mm | 23.8 in |
Maximum Blade Depth | 407 mm | 16 in |
O/A Track Width | 2300 mm | 90.6 in |
Maximum Dig Height | 6736 mm | 265.2 in |
Maximum Dump Clearance | 4760 mm | 187.4 in |
Maximum Reach - Ground Level | 6949 mm | 273.6 in |
Tail Swing without Counterweight | 1450 mm | 57.1 in |
O/A Undercarriage Length | 2880 mm | 113.4 in |
Swing Bearing - Height | 756 mm | 29.7 in |
Ground Clearance | 350 mm | 13.8 in |
Dig Depth | 4108 mm | 161.7 in |
Note | *Boom Height when stick is pinned in transport position with no attachments. | *Boom Height when stick is pinned in transport position with no attachments. |
Overall Shipping Length - with Counterweight | 6706 mm | 264 in |
Note (1) | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. |
Overall Shipping Length - without Counterweight | 6574 mm | 258.8 in |
Note (2) | ***With blade positioned at the rear of the machine. | ***With blade positioned at the rear of the machine. |
Height - Boom Working - With Tools** | 2660 mm | 104.7 in |
Height - Boom Transport - No Tools* | 2430 mm | 95.7 in |
Dimensions - Long Stick
Dig Depth | 4643 mm | 182.8 in |
Boom Swing - Left | 604 mm | 23.8 in |
Maximum Dig Height | 7039 mm | 277.1 in |
Maximum Blade Height | 370 mm | 14.6 in |
Track Belt/Shoe Width | 450 mm | 17.7 in |
Cab Height | 2541 mm | 100 in |
Tail Swing with Counterweight | 1585 mm | 62.4 in |
O/A Undercarriage Length | 2880 mm | 113.4 in |
Maximum Dump Clearance | 5072 mm | 199.7 in |
Boom Swing - Right | 935 mm | 36.8 in |
Maximum Blade Depth | 407 mm | 16 in |
Ground Clearance | 350 mm | 13.8 in |
Stick Length | 2358 mm | 92.8 in |
Maximum Reach | 7637 mm | 300.7 in |
Maximum Reach - Ground Level | 7460 mm | 293.7 in |
Boom In Reach | 3215 mm | 126.6 in |
Swing Bearing - Height | 756 mm | 29.7 in |
O/A Track Width | 2300 mm | 90.6 in |
Tail Swing without Counterweight | 1450 mm | 57.1 in |
Vertical Wall | 3404 mm | 134 in |
Note | *Boom Height when stick is pinned in transport position with no attachments. | *Boom Height when stick is pinned in transport position with no attachments. |
Note (2) | ***With blade positioned at the rear of the machine. | ***With blade positioned at the rear of the machine. |
Note (1) | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. | **Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position. |
Height - Boom Transport - No Tools* | 2260 mm | 89 in |
Height - Boom Working - With Tools** | 3050 mm | 120.1 in |
Overall Shipping Length - without Counterweight | 6872 mm (270.6 in)*** | 6872 mm (270.6 in)*** |
Overall Shipping Length - with Counterweight | 6872 mm (270.6 in)*** | 6872 mm (270.6 in)*** |
Air Conditioning System
Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. |
Sustainability
Recyclability | 96% | 96% |
ENGINE
Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF) |
Automatic Engine Idle |
Automatic Engine Shutdown |
Automatic Swing Brake |
Automatic Two Speed Travel |
Fuel Water Separator with Indicator |
Radial Seal – Double Element Air Filter |
Extended Life Coolant, –37° C (–35° F) |
HYDRAULICS
Electronic Variable Displacement Piston Pump |
Load Sensing/Flow Sharing Hydraulics |
Power On Demand |
Hydraulic Temperature Monitoring |
Certified Accumulator |
HYDO Advanced Hydraulic Oil |
OPERATOR ENVIRONMENT
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 |
HVAC with Automatic Temperature Control |
Hydraulic Lockout Controls |
Integrated Lower Front Window |
Assisted Front Window Overhead Storage |
Rear Window Emergency Exit |
Fabric, High Back, Suspension Seat |
Retractable Seat Belt (75 mm/3 in) |
Coat Hook |
Cup Holder |
LED Interior Light |
Literature Holder |
Mounting Bosses for Top and Front Guards |
12V Power Socket |
Radio – Bluetooth, Auxiliary, Microphone, USB (charging only) |
Skylight |
Signaling/Warning Horn |
Cab and (left side) Boom Work Lights |
Utility Space for Mobile Phone |
Next Generation Color LCD Monitor (IP66) – Jog Dial Interface – 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 |
UNDERCARRIAGE
Greased and Lubricated Track |
Tie Down Eyes on Track Frame |
Dozer Blade |
Dozer Float |
Bolt-on, Reversible Wear Edge |
BOOM, STICK AND LINKAGES
One Piece Boom (3400 mm/133.9 in) |
Standard Stick (1820 mm/71.7 in) |
Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions) |
Thumb Ready (not available in all regions) |
ELECTRICAL
12 Volt Electrical System |
60 Ampere Alternator |
Circuit Breaker |
900 CCA Maintenance Free Battery |
Battery Disconnect |
Ignition Key Stop Switch |
OTHER
Locks on External Enclosure Doors |
Lockable Fuel Cap |
Beacon Socket |
Rear Reflectors |
TECHNOLOGY
Product Link Basic |
OPERATOR ENVIRONMENT
Push to Start with Bluetooth® Key |
Air Suspension Heated Seat |
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 |