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® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, an ergonomic cab focused on operator comfort and productivity, plus lower fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.
The Cat® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, an ergonomic cab focused on operator comfort and productivity, plus lower fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.
Net Power - ISO 9249 | 117 kW | 157 hp |
Net Power - ISO 9249 (DIN) | 159 hp (metric) | 159 hp (metric) |
Engine Model | Cat C7.1 | Cat C7.1 |
Engine Power - ISO 14396 | 118 kW | 158 hp |
Engine Power - ISO 14396 (DIN) | 160 hp (metric) | 160 hp (metric) |
Bore | 105 mm | 4 in |
Stroke | 135 mm | 5 in |
Displacement | 7.01 l | 428 in³ |
Biodiesel Capability | Up to B20¹ | Up to B20¹ |
Emissions | Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. | Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. |
Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. |
Note (2) | ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. | ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
Hydraulic System
Main System - Maximum Flow | 429 l/min (113 gal/min) | 429 l/min (113 gal/min) |
Maximum Pressure - Equipment | 35000 kPa | 5075 psi |
Maximum Pressure - Equipment - Lift Mode | 38000 kPa | 5510 psi |
Maximum Pressure - Travel | 34300 kPa | 4974 psi |
Maximum Pressure - Swing | 27500 kPa | 3988 psi |
Swing Mechanism
Swing Speed | 11.3 r/min | 11.3 r/min |
Maximum Swing Torque | 82 kN·m | 60300 ft·lbf |
Weights
Operating Weight | 21300 kg | 47000 lb |
Note | Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight. | Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight. |
Service Refill Capacities
Fuel Tank Capacity | 345 l | 86.6 gal (US) |
Cooling System | 25 l | 6.6 gal (US) |
Engine Oil | 25 l | 6.6 gal (US) |
Swing Drive - Each | 6 l | 1.6 gal (US) |
Final Drive - Each | 5 l | 1.3 gal (US) |
Hydraulic System - Including Tank | 234 l | 61.8 gal (US) |
Hydraulic Tank | 115 l | 30.4 gal (US) |
Dimensions
Boom | HD Reach 5.7 m (18'8") | HD Reach 5.7 m (18'8") |
Stick | HD Reach 2.9 m (9'6") | HD Reach 2.9 m (9'6") |
Bucket | HD 1.19 m³ (1.56 yd³) | HD 1.19 m³ (1.56 yd³) |
Shipping Height - Top of Cab | 2960 mm | 9.7 ft |
Handrail Height | 2950 mm | 9.8 ft |
Shipping Length | 9530 mm | 31.3 ft |
Tail Swing Radius | 2830 mm | 9.3 ft |
Counterweight Clearance | 1050 mm | 3.4 ft |
Ground Clearance | 470 mm | 1.5 ft |
Track Length | 4450 mm | 14.7 ft |
Length to Center of Rollers | 3650 mm | 12 ft |
Track Gauge | 2380 mm | 7.8 ft |
Transport Width | 2980 mm | 9.8 ft |
Working Ranges & Forces
Maximum Digging Depth | 6720 mm | 22 ft |
Boom | HD Reach 5.7 m (18'8") | HD Reach 5.7 m (18'8") |
Stick | HD Reach 2.9 m (9'6") | HD Reach 2.9 m (9'6") |
Bucket | HD 1.19 m³ (1.56 yd³) | HD 1.19 m³ (1.56 yd³) |
Maximum Reach at Ground Level | 9860 mm | 32.3 ft |
Maximum Cutting Height | 9370 mm | 30.7 ft |
Maximum Loading Height | 6490 mm | 21.3 ft |
Minimum Loading Height | 2170 mm | 7.1 ft |
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 6550 mm | 21.5 ft |
Maximum Vertical Wall Digging Depth | 5190 mm | 17 ft |
Bucket Digging Force - ISO | 150 kN | 33811 lbf |
Stick Digging Force - ISO | 106 kN | 23911 ft·lbf |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
CAB
Rollover protective structure (ROPS) |
Mechanical-suspension seat (Comfort only) |
Heated air-suspension seat (Deluxe only) |
High-resolution 203 mm (8 in) LCD touchscreen monitor |
CAT TECHNOLOGY
VisionLink® |
Remote Flash |
Remote Troubleshoot |
Cat Grade 2D |
Cat Assist |
Cat Payload |
ELECTRICAL SYSTEM
Two 1,000 CCA maintenance-free batteries |
Programmable time-delay LED working lights |
LED chassis light, left-hand/right-hand boom lights, cab lights |
ENGINE
Cat C7.1 single turbo diesel engine |
Three selectable power modes |
Automatic engine speed control |
Auto engine idle shutdown |
52°C (125°F) high-ambient cooling capacity |
-18°C (0°F) cold start capability |
Double element air filter with integrated precleaner |
Reversing electric cooling fans |
HYDRAULIC SYSTEM
Boom and stick regeneration circuits |
Auto warm up |
Auto two-speed travel |
Boom and stick drift reduction valve |
Auto hydraulic warm up |
Slider joysticks |
SAFETY AND SECURITY
2D E-Fence |
Auto hammer stop |
Rearview camera |
Right-hand mirror |
Cat asset tracker |
Ground-level engine shutoff switch |
Lockable disconnect switch |
Right-hand handrail and hand hold |
Signaling/warning horn |
SERVICE AND MAINTENANCE
Scheduled Oil Sampling (S·O·S℠) ports |
Ground-level and platform-level engine oil dipsticks |
Integrated vehicle health management system |
UNDERCARRIAGE AND STRUCTURES
4700 kg (10,400 lb) counterweight for SLR boom and stick |
Tie-down points on base frame |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
The Cat® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, an ergonomic cab focused on operator comfort and productivity, plus lower fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.
Net Power - ISO 9249 | 117 kW | 157 hp |
Net Power - ISO 9249 (DIN) | 159 hp (metric) | 159 hp (metric) |
Engine Model | Cat C7.1 | Cat C7.1 |
Engine Power - ISO 14396 | 118 kW | 158 hp |
Engine Power - ISO 14396 (DIN) | 160 hp (metric) | 160 hp (metric) |
Bore | 105 mm | 4 in |
Stroke | 135 mm | 5 in |
Displacement | 7.01 l | 428 in³ |
Biodiesel Capability | Up to B20¹ | Up to B20¹ |
Emissions | Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. | Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. |
Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. |
Note (2) | ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. | ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. |
Hydraulic System
Main System - Maximum Flow | 429 l/min (113 gal/min) | 429 l/min (113 gal/min) |
Maximum Pressure - Equipment | 35000 kPa | 5075 psi |
Maximum Pressure - Equipment - Lift Mode | 38000 kPa | 5510 psi |
Maximum Pressure - Travel | 34300 kPa | 4974 psi |
Maximum Pressure - Swing | 27500 kPa | 3988 psi |
Swing Mechanism
Swing Speed | 11.3 r/min | 11.3 r/min |
Maximum Swing Torque | 82 kN·m | 60300 ft·lbf |
Weights
Operating Weight | 21300 kg | 47000 lb |
Note | Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight. | Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, HD 1.19 m³ (1.56 yd³) bucket, 600 mm (24") triple grouser shoes, and 3700 kg (8,200 lb) counterweight. |
Service Refill Capacities
Fuel Tank Capacity | 345 l | 86.6 gal (US) |
Cooling System | 25 l | 6.6 gal (US) |
Engine Oil | 25 l | 6.6 gal (US) |
Swing Drive - Each | 6 l | 1.6 gal (US) |
Final Drive - Each | 5 l | 1.3 gal (US) |
Hydraulic System - Including Tank | 234 l | 61.8 gal (US) |
Hydraulic Tank | 115 l | 30.4 gal (US) |
Dimensions
Boom | HD Reach 5.7 m (18'8") | HD Reach 5.7 m (18'8") |
Stick | HD Reach 2.9 m (9'6") | HD Reach 2.9 m (9'6") |
Bucket | HD 1.19 m³ (1.56 yd³) | HD 1.19 m³ (1.56 yd³) |
Shipping Height - Top of Cab | 2960 mm | 9.7 ft |
Handrail Height | 2950 mm | 9.8 ft |
Shipping Length | 9530 mm | 31.3 ft |
Tail Swing Radius | 2830 mm | 9.3 ft |
Counterweight Clearance | 1050 mm | 3.4 ft |
Ground Clearance | 470 mm | 1.5 ft |
Track Length | 4450 mm | 14.7 ft |
Length to Center of Rollers | 3650 mm | 12 ft |
Track Gauge | 2380 mm | 7.8 ft |
Transport Width | 2980 mm | 9.8 ft |
Working Ranges & Forces
Maximum Digging Depth | 6720 mm | 22 ft |
Boom | HD Reach 5.7 m (18'8") | HD Reach 5.7 m (18'8") |
Stick | HD Reach 2.9 m (9'6") | HD Reach 2.9 m (9'6") |
Bucket | HD 1.19 m³ (1.56 yd³) | HD 1.19 m³ (1.56 yd³) |
Maximum Reach at Ground Level | 9860 mm | 32.3 ft |
Maximum Cutting Height | 9370 mm | 30.7 ft |
Maximum Loading Height | 6490 mm | 21.3 ft |
Minimum Loading Height | 2170 mm | 7.1 ft |
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 6550 mm | 21.5 ft |
Maximum Vertical Wall Digging Depth | 5190 mm | 17 ft |
Bucket Digging Force - ISO | 150 kN | 33811 lbf |
Stick Digging Force - ISO | 106 kN | 23911 ft·lbf |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |
CAB
Rollover protective structure (ROPS) |
Mechanical-suspension seat (Comfort only) |
Heated air-suspension seat (Deluxe only) |
High-resolution 203 mm (8 in) LCD touchscreen monitor |
CAT TECHNOLOGY
VisionLink® |
Remote Flash |
Remote Troubleshoot |
Cat Grade 2D |
Cat Assist |
Cat Payload |
ELECTRICAL SYSTEM
Two 1,000 CCA maintenance-free batteries |
Programmable time-delay LED working lights |
LED chassis light, left-hand/right-hand boom lights, cab lights |
ENGINE
Cat C7.1 single turbo diesel engine |
Three selectable power modes |
Automatic engine speed control |
Auto engine idle shutdown |
52°C (125°F) high-ambient cooling capacity |
-18°C (0°F) cold start capability |
Double element air filter with integrated precleaner |
Reversing electric cooling fans |
HYDRAULIC SYSTEM
Boom and stick regeneration circuits |
Auto warm up |
Auto two-speed travel |
Boom and stick drift reduction valve |
Auto hydraulic warm up |
Slider joysticks |
SAFETY AND SECURITY
2D E-Fence |
Auto hammer stop |
Rearview camera |
Right-hand mirror |
Cat asset tracker |
Ground-level engine shutoff switch |
Lockable disconnect switch |
Right-hand handrail and hand hold |
Signaling/warning horn |
SERVICE AND MAINTENANCE
Scheduled Oil Sampling (S·O·S℠) ports |
Ground-level and platform-level engine oil dipsticks |
Integrated vehicle health management system |
UNDERCARRIAGE AND STRUCTURES
4700 kg (10,400 lb) counterweight for SLR boom and stick |
Tie-down points on base frame |
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details. |