320 Hydraulic Excavator

360° View

Video

Product description

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 lower fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.

Engine

Net Power - ISO 9249 - 172HP
Net Power - ISO 9249 (DIN) - 175hp (metric)
Engine Model - Cat C4.4
Engine Power - ISO 14396 - 174HP
Engine Power - ISO 14396 (DIN) - 176hp (metric)
Bore - 4in
Stroke - 5in
Displacement - 269in³
Biodiesel Capability - Up to B20¹
Emissions - Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 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 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

Weights

Operating Weight - 49800lb
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.

Working Ranges & Forces

Maximum Digging Depth - 22ft
Boom - Reach 5.7 m (18'8")
Stick - Reach 2.9 m (9'6")
Bucket - 1.19 m ³ (1.56 yd³)
Maximum Reach at Ground Level - 32.3ft
Maximum Cutting Height - 30.7ft
Maximum Loading Height - 21.3ft
Minimum Loading Height - 7.1ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom - 21.5ft
Maximum Vertical Wall Digging Depth - 17ft
Bucket Digging Force - ISO - 38811lbf
Stick Digging Force - ISO - 23911lbf

Hydraulic System

Main System - Maximum Flow - 429 l/min (113 gal/min)
Maximum Pressure - Equipment - 5075psi
Maximum Pressure - Travel - 4974psi
Maximum Pressure - Swing - 3988psi

Swing Mechanism

Maximum Swing Torque - 60300ft·lbf

Service Refill Capacities

Fuel Tank Capacity - 86.6gal (US)
Cooling System - 6.6gal (US)
Engine Oil - 4gal (US)
Swing Drive - Each - 1.6gal (US)
Final Drive - Each - 1.1gal (US)
Hydraulic System - Including Tank - 61.8gal (US)
Hydraulic Tank - 30.4gal (US)
DEF Tank - 10.3gal (US)

Dimensions

Boom - Reach 5.7 m (18'8")
Stick - Reach 2.9 m (9'6")
Bucket - 1.19 m ³ (1.56 yd³)
Shipping Height - Top of Cab - 9.7ft
Handrail Height - 9.7ft
Shipping Length - 31.3ft
Tail Swing Radius - 9.3ft
Counterweight Clearance - 3.4ft
Ground Clearance - 1.5ft
Track Length - 14.6ft
Length to Center of Rollers - 11.7ft
Track Gauge - 7.8ft
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%

Standard Equipment:

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Cab
- 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
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 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
Hydraulic System
- Boom and stick regeneration circuits
- Auto warm up
- Auto two-speed travel
- Auto dig boost
- Boom and stick drift reduction valve
Safety And Security
- 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
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
- Tie-down points on base frame

Optional Equipment:

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Booms And Sticks
- 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
Cab
- Cat Stick Steer
- Auxiliary relay
Cat Technology
- 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
Hydraulic System
- 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
Safety And Security
- Cat Command (remote control)
- 360° visibility
- Swing alarm
- Inspection lighting
Undercarriage And Structures
- 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