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)
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 (DIN) 176hp (metric)
Engine Power - ISO 14396:2002 174hp
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
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
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
Main System - Maximum Flow 429 l/min (113 gal/min)
Maximum Pressure - Equipment 5075psi
Maximum Pressure - Swing 3988psi
Maximum Pressure - Travel 4974psi
Maximum Swing Torque 60300ft·lbf
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)
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 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).
Recyclability 97%
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
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
