Medium Excavators

* Actual availability may vary subject to prior Sales

product-320 Hydraulic Excavatorproduct-320 Hydraulic Excavatorproduct-320 Hydraulic Excavatorproduct-320 Hydraulic Excavatorproduct-320 Hydraulic Excavatorproduct-320product-320product-320product-320320 Family Introduction VideoCat 320® Next Generation Excavator Delivers More for GP&H Constructions
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.

Engine

Net Power - ISO 9249 157 hp
Net Power - ISO 9249 (DIN) 159 hp (metric)
Engine Model Cat C7.1
Engine Power - ISO 14396 118 kW
Engine Power - ISO 14396 (DIN) 160 hp (metric)
Bore 105 mm
Stroke 135 mm
Displacement 7.01 l
Biodiesel Capability Up to B20¹
Emissions 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.
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.

Hydraulic System

Main System - Maximum Flow 429 l/min (113 gal/min)
Maximum Pressure - Equipment 35000 kPa
Maximum Pressure - Equipment - Lift Mode 38000 kPa
Maximum Pressure - Travel 34300 kPa
Maximum Pressure - Swing 27500 kPa

Swing Mechanism

Swing Speed 11.3 r/min
Maximum Swing Torque 82 kN·m

Weights

Operating Weight 21300 kg
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.

Service Refill Capacities

Fuel Tank Capacity 345 l
Cooling System 25 l
Engine Oil 25 l
Swing Drive - Each 6 l
Final Drive - Each 5 l
Hydraulic System - Including Tank 234 l
Hydraulic Tank 115 l

Dimensions

Boom HD Reach 5.7 m (18'8")
Stick HD Reach 2.9 m (9'6")
Bucket HD 1.19 m³ (1.56 yd³)
Shipping Height - Top of Cab 2960 mm
Handrail Height 2950 mm
Shipping Length 9530 mm
Tail Swing Radius 2830 mm
Counterweight Clearance 1050 mm
Ground Clearance 470 mm
Track Length 4450 mm
Length to Center of Rollers 3650 mm
Track Gauge 2380 mm
Transport Width 2980 mm

Working Ranges and Forces

Maximum Digging Depth 6720 mm
Boom HD Reach 5.7 m (18'8")
Stick HD Reach 2.9 m (9'6")
Bucket HD 1.19 m³ (1.56 yd³)
Maximum Reach at Ground Level 9860 mm
Maximum Cutting Height 9370 mm
Maximum Loading Height 6490 mm
Minimum Loading Height 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 6550 mm
Maximum Vertical Wall Digging Depth 5190 mm
Bucket Digging Force - ISO 150 kN
Stick Digging Force - ISO 106 kN