Crawler excavator Caterpillar 320

Medium Excavator

320

Main technical specifications

Net Power - ISO 9249

128.5 kW

Operating Weight

21700 kg

Maximum digging depth

6720 mm

Overview

Best-in-class performance, user-friendly technology

The Cat® 320 sets a new benchmark in efficiency and fuel economy. The 320 features

an engine with an aftertreatment system that requires no downtime and meets China National IV non-road emission standards.

advantage

Up to 10% reduction in fuel consumption

A precise combination of low engine speed and a large hydraulic pump delivers class-leading performance while reducing fuel consumption.

Up to 10% reduction in maintenance costs

Service intervals are extended and more synchronized than previous models, so you can get more work done at a lower cost.

Up to 45% higher work efficiency

Offering the industry's highest level of standard factory equipment, including Cat Grade with 2D, Grade Assist and Payload.

Performance Overview

Latest Features

Less fuel consumption, higher efficiency

Improving efficiency through technology

Take the guesswork out of managing your devices

Designed for operators

Easy to operate

Save on repair and maintenance costs

You can work safely and return home safely every day

Sustainability

engine

Net Power - ISO 9249 128.5 kW

Net Power - ISO 9249 (DIN) 175 hp (Metric)

Engine Model Cat C4.4

Engine Power - ISO 14396 129.4 kW

Engine power - ISO 14396 (DIN) 176 hp (Metric)

Cylinder diameter 105 mm

stroke 127 mm

Displacement 4.4 l

Biodiesel Performance Up to B20 grade can be used¹

emission Meets China National IV non-road emission standards.

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. Rated power is measured at an engine speed of 2000 rpm under the specific conditions specified in the specified standards in effect at the time of manufacture.

Note (2) ¹Cat diesel engines require ULSD (Ultra-Low Sulfur Diesel, 15 ppm or less) or blends of ULSD with the following lower carbon intensity fuels: up to 20% biodiesel FAME (Fatty Acid Methyl Ester)* or up to 100% renewable diesel, HVO (Hydrotreated Vegetable Oil), and GTL (Gas-to-liquid) fuels. Refer to guidelines for successful application. Consult your Cat dealer or refer to Caterpillar Machine Oil Recommendations (SEBU6250) for details. *Engine without aftertreatment equipment can use up to 100% biodiesel blends (for blends above 20% biodiesel, consult your Cat dealer). Tailpipe greenhouse gas emissions of lower carbon intensity fuels are similar to conventional fuels.

Hydraulic system

Main System – Maximum Flow 429 l/min (113 gal/min)

Maximum Pressure - Equipment 35000 kPa

Maximum Pressure - Travel 34300 kPa

Maximum Pressure - Swing 27500 kPa

Rotating mechanism

Rotation speed 11.25 r/min

Maximum rotation torque 82 kN·m

weight

Operating Weight 21700 kg

Note Long undercarriage, 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 4200 kg (9,300 lb) counterweight.

Maintenance refill capacity

Fuel tank capacity 345 l

Cooling system 25 l

Engine oil 15 l

Slewing Drive - Each 6 l

Final Drives - Each 5 l

Hydraulic system - including tank 234 l

Hydraulic oil tank 115 l

size

Boom Heavy-duty reach 5.7 m (18'8")

Stick Heavy-duty reach 2.9 m (9'6")

Bucket Heavy Duty 1.19 m³ (1.56 yd³)

Shipping Height – Top of Cab 2960 mm

Armrest height 2950 mm

Shipping Length 9530 mm

Tail turning radius 2830 mm

Counterweight clearance 1050 mm

Ground Clearance 470 mm

Track length 4450 mm

Center distance of track rollers 3650 mm

Track gauge 2380 mm

Transport width 2980 mm

Working range and force

Maximum digging depth 6720 mm

Boom Heavy-duty reach 5.7 m (18'8")

Stick Heavy-duty reach 2.9 m (9'6")

Bucket Heavy Duty 1.19 m³ (1.56 yd³)

Maximum ground reach 9860 mm

Maximum cut height 9370 mm

Maximum loading height 6490 mm

Minimum loading height 2170 mm

2440 mm (8 ft) maximum cut depth with flat bottom 6550 mm

Maximum vertical wall digging depth 5190 mm

Bucket Breakout Force - ISO 150 kN

Stick Breaking Force - ISO 106 kN