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
- 6.72 m
- power
- 117 kW (157 hp)
- Operating weight
- 21,300 kg
- Bucket capacity
- 1.19 m³
- Overall height (to top of cab)
- 2.96 m
- Overall length
- 9.53 m
- Tail swing radius
- 2.83 m
- Ground clearance, counterweight
- 1.05 m
- Ground clearance (minimum)
- 0.47 m
- Track length
- 4.45 m
- Track length on ground
- 3.65 m
- Track gauge
- 2.38 m
- Overall width
- 2.98 m
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5
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10
Dimensions
- Handrail height
- 2.95 m
- Shoe width
- 0.6 m
Performance
- 1Max digging depth
- 6.72 m
- 2Max reach at ground level
- 9.86 m
- 3Max digging height
- 9.37 m
- 4Max dumping height
- 6.49 m
- 5Min loading height
- 2.17 m
- 6Max depth cut for 2,440 mm level bottom
- 6.55 m
- 7Max vertical wall digging depth
- 5.19 m
- Bucket capacity (HD bucket)
- 1.19 m³
- Bucket digging force
- 150 kN
- Arm digging force
- 106 kN
- Swing speed
- 11.3 r/min
- Max swing torque
- 82 kN·m
Weight
- Operating weight
- 21,300 kg
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)
- 117 kW (157 hp)
- Net power (DIN) (ISO 9249 (DIN))
- 159 hp (metric)
- Gross power (ISO 14396)
- 118 kW (158 hp)
- Gross power (DIN) (ISO 14396 (DIN))
- 160 hp (metric)
- Bore
- 105 mm
- Stroke
- 135 mm
- Displacement
- 7 L
- Biodiesel capability
- Up to B20
Hydraulics
- Pump flow (Main system, maximum flow)
- 429 L/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
- 345 L
- Cooling system
- 25 L
- Engine oil
- 25 L
- Swing drive (each)
- 6 L
- Final drive (each)
- 5 L
- Hydraulic system, with tank
- 234 L
- Hydraulic tank
- 115 L
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