Specification sheetIssued 4 November 2026
Cat · excavator
Cat 320
Cat 320 (next generation, Tier 3 / Stage IIIA-equivalent build for less-regulated markets, C7.1 engine, build 07G) as sold by Al-Bahar in the UAE/GCC; dimensions and working ranges for the 5.7 m HD Reach boom, 2.9 m HD Reach stick and 1.19 m³ HD bucket.
UAEUSAGlobal
- digging depth
- 22 ft
- power
- 157 hp
- Operating weight
- 47,000 lb
- Bucket capacity
- 1.56 yd³
- Overall height (to top of cab)
- 9.7 ft
- Overall length
- 31.3 ft
- Tail swing radius
- 9.3 ft
- Ground clearance, counterweight
- 3.4 ft
- Ground clearance (minimum)
- 1.5 ft
- Track length
- 14.7 ft
- Track length on ground
- 12 ft
- Track gauge
- 7.8 ft
- Overall width
- 9.8 ft
1
2
4
5
6
7
8
9
10
Dimensions
- Handrail height
- 9.8 ft
- Shoe width
- 2 ft
Performance
- 1Max digging depth
- 22 ft
- 2Max reach at ground level
- 32.3 ft
- 3Max digging height
- 30.7 ft
- 4Max dumping height
- 21.3 ft
- 5Min loading height
- 7.1 ft
- 6Max depth cut for 2,440 mm level bottom
- 21.5 ft
- 7Max vertical wall digging depth
- 17 ft
- Bucket capacity (HD bucket)
- 1.56 yd³
- Bucket digging force
- 33,811 lbf
- Arm digging force
- 23,911 ft·lbf
- Swing speed
- 11.3 r/min
- Max swing torque
- 82 kN·m
Weight
- Operating weight
- 47,000 lb
Engine
- Engine model
- Cat C7.1
- Emissions
- Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA
- Net power (ISO 9249, at 1,800 rpm)
- 157 hp
- Net power (DIN) (ISO 9249 (DIN))
- 159 hp (metric)
- Gross power (ISO 14396)
- 158 hp
- Gross power (DIN) (ISO 14396 (DIN))
- 160 hp (metric)
- Bore
- 4 in
- Stroke
- 5 in
- Displacement
- 428 in³
- Biodiesel capability
- Up to B20
Hydraulics
- Pump flow (Main system, maximum flow)
- 113 gal/min
- Max pressure (Equipment)
- 35 000 kPa
- Max pressure, equipment (lift mode)
- 38 000 kPa
- Max pressure, travel
- 34 300 kPa
- Max pressure, swing
- 27 500 kPa
Service capacities
- Fuel tank
- 86.6 gal
- Cooling system
- 6.6 gal
- Engine oil
- 6.6 gal
- Swing drive (each)
- 1.6 gal
- Final drive (each)
- 1.3 gal
- Hydraulic system, with tank
- 61.8 gal
- Hydraulic tank
- 30.4 gal
Service intervals
- Engine oil and filter
- 1,000 hours
- Fuel filters
- 1,000 hours
- Swing drive oil (First change at 500 h)
- 1,000 hours
- Final drive oil (Each side; first change at 500 h)
- 2,000 hours
- Hydraulic return filter
- 3,000 hours
- Hydraulic oil
- 6,000 hours
- Coolant
- 12,000 hours
- Boom and stick linkage grease (Daily for the first 50 h)
- 500 hours
- Bucket linkage grease (Daily for the first 50 h)
- 100 hours