320 Hydraulic Excavator

320 Hydraulic Excavator

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, a cab focused on operator comfort, plus low fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.

  • Net Power - ISO 9249 172 HP

  • Operating Weight 49800 lb

  • Maximum Digging Depth 22 ft

  • Net Power - ISO 9249 (DIN) 175 hp (metric)

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Product Specifications

Specifications

Engine

  • Biodiesel Capability Up to B20¹

  • Bore 4in

  • Displacement 269in³

  • Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.

  • Engine Model Cat C4.4

  • Engine Power - ISO 14396 174HP

  • Engine Power - ISO 14396 (DIN) 176hp (metric)

  • Net Power - ISO 9249 172HP

  • Net Power - ISO 9249 (DIN) 175hp (metric)

  • 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 2,200 rpm. Advertised power is tested per the specified standard in effect at the time

  • Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO

  • Stroke 5in

Weights

  • Note Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m ³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight.

  • Operating Weight 49800lb

Working Ranges & Forces

  • Boom Reach 5.7 m (18'8")

  • Bucket 1.19 m ³ (1.56 yd³)

  • Bucket Digging Force - ISO 38811lbf

  • Maximum Cutting Height 30.7ft

  • Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.5ft

  • Maximum Digging Depth 22ft

  • Maximum Loading Height 21.3ft

  • Maximum Reach at Ground Level 32.3ft

  • Maximum Vertical Wall Digging Depth 17ft

  • Minimum Loading Height 7.1ft

  • Stick Reach 2.9 m (9'6")

  • Stick Digging Force - ISO 23911lbf

Hydraulic System

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

  • Maximum Pressure - Equipment 5075psi

  • Maximum Pressure - Swing 3988psi

  • Maximum Pressure - Travel 4974psi

Swing Mechanism

  • Maximum Swing Torque 60300ft·lbf

Service Refill Capacities

  • Cooling System 6.6gal (US)

  • DEF Tank 10.3gal (US)

  • Engine Oil 4gal (US)

  • Final Drive - Each 1.1gal (US)

  • Fuel Tank Capacity 86.6gal (US)

  • Hydraulic System - Including Tank 61.8gal (US)

  • Hydraulic Tank 30.4gal (US)

  • Swing Drive - Each 1.6gal (US)

Dimensions

  • Boom Reach 5.7 m (18'8")

  • Bucket 1.19 m ³ (1.56 yd³)

  • Counterweight Clearance 3.4ft

  • Ground Clearance 1.5ft

  • Handrail Height 9.7ft

  • Length to Center of Rollers 11.7ft

  • Shipping Height - Top of Cab 9.7ft

  • Shipping Length 31.3ft

  • Stick Reach 2.9 m (9'6")

  • Tail Swing Radius 9.3ft

  • Track Gauge 7.8ft

  • Track Length 14.6ft

  • Transport Width 9.8ft

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 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).

Sustainability

  • Recyclability 97%

Features

Equipment

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

  • Rollover protective structure (ROPS)

  • Air-adjustable seat with heat (Deluxe only)

  • Auto-adjustable seat with heat and air ventilation (Premium only)

  • High-resolution 254 mm (10 inch) LCD touchscreen monitor

  • VisionLink®

  • Remote Flash

  • Remote Troubleshoot

  • Cat Grade 2D

  • Cat Assist

  • Cat Payload

  • Two 1,000 CCA maintenance-free batteries

  • Programmable time-delay LED working lights

  • LED chassis light, left-hand/right-hand boom lights, cab lights

  • Cat C4.4 twin turbo diesel engine

  • Three selectable power modes

  • Automatic engine speed control

  • 52°C (126°F) ambient cooling capacity

  • -32°C (-25°F) cold start capability

  • Double element air filter with integrated precleaner

  • Reversing electric cooling fans

  • Boom and stick regeneration circuits

  • Auto warm up

  • Auto two-speed travel

  • Auto dig boost

  • Boom and stick drift reduction valve

  • 2D E-Fence

  • Auto hammer stop

  • Rearview and right-side-view cameras

  • Ground-level engine shutoff switch

  • Lockable disconnect switch

  • Right-hand handrail and hand hold

  • Signaling/warning horn

  • Scheduled Oil Sampling (S·O·S℠) ports

  • Ground-level and platform-level engine oil dipsticks

  • Integrated vehicle health management system

  • Tie-down points on base frame

Optional Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

  • 5.7 m (18'8") Reach boom

  • 5.7 m (18'8") HD Reach boom

  • 2.8 m (9'2") Stub + 3.3 m (10'10") Fore, VA boom

  • 8.85 m (29'0") Super Long Reach boom

  • 2.5 m (8'2") Reach stick

  • 2.9 m (9'6") Reach stick

  • 2.5 m (8'2") HD Reach stick

  • 2.9 m (9'6") HD Reach stick

  • 2.9 m (9'6") HD Thumb Ready Reach stick

  • 6.28 m (20'7") Super Long Reach stick

  • Cat Stick Steer

  • Auxiliary relay

  • VisionLink Productivity

  • Cat Grade Connectivity

  • Cat Grade 2D with Attachment Ready Option (ARO)

  • Cat Grade 3D single GNSS

  • Cat Grade 3D dual GNSS

  • Cat Tilt Rotator (TRS) Integration

  • Operator Coaching

  • Boom and stick lowering check valves

  • SmartBoom (Europe only)

  • Hammer return filter circuit

  • Hydraulic efficiency monitoring

  • Advanced tool control (two pump, one/two way high-pressure flow)

  • Medium-pressure circuit

  • Quick coupler circuit for Cat pin grabber

  • Cat Command (remote control)

  • 360° visibility

  • Swing alarm

  • Inspection lighting

  • 600 mm (24") triple grouser shoes

  • 700 mm (28") triple grouser shoes

  • 790 mm (31") triple grouser shoes

  • 900 mm (35") triple grouser shoes

  • 4200 kg (9,300 lb) counterweight

  • 4700 kg (10,400 lb) counterweight