Cat 320 Medium excavators tech specs
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Video[1]
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Interior [2]
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Exterior [4]
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Attachments [1]
Cat 320 technical specifications
Highlight differences
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Engine model
Engine model Cat C7.1
Engine model Cat C6.4 ACERT
Operating weight
Operating weight 21,200 kg
Operating weight 21,570 kg
Max dump height
Max dump height 7.34 m
Max dump height 6,030 mm
Boom length
Boom length 5.7 m
Boom length 5.7 m
Displacement
Displacement 7,100 cu cm
Displacement 6,400 cu cm
Gradeability
Gradeability 70 º
Gradeability 35 º
Bucket digging force
Bucket digging force 133 kN
Bucket digging force 152 kN
Bucket width
Bucket width 1,350 mm
Bucket width 850 mm
Bucket capacity
Bucket capacity 1.4 m3
Bucket capacity 1.2 cu m
Max speed forward
Max speed forward 5.5 kph
Max speed forward 5.5 kph
Max digging depth
Max digging depth 6,720 mm
Max digging depth -
Max digging depth
Max digging depth -
Max digging depth 6,700 mm
Max digging reach
Max digging reach -
Max digging reach 10,020 mm
Years
Years 2016-2025
Years 2016-2025
Market Average
Market Average AED 192,000
Market Average AED 192,000
Price
Price AED 145,000
Price AED 145,000
Gross power
Gross power 110 kw
Gross power 111 kw
Swing speed
Swing speed 10.9 rpm
Swing speed 11.5 rpm
Arm crowding force
Arm crowding force 106 kN
Arm crowding force 106 kN
Engine oil cap
Engine oil cap 15 liter
Engine oil cap 30.3 liter
Drawbar Pull
Drawbar Pull 178 kN
Drawbar Pull 206 kN
Track width
Track width 600 mm
Track width 80 cm
Track length
Track length -
Track length 4.46 m
Height - top of cab
Height - top of cab 3.05 m
Height - top of cab 2.96 m
Pump flow cap
Pump flow cap 259 lpm
Pump flow cap 205 lpm
Relief valve pressure
Relief valve pressure 329.98 bar
Relief valve pressure 350 bar
Fuel cap
Fuel cap 410 liter
Fuel cap 410 liter
Hydraulic fluid cap
Hydraulic fluid cap 170 liter
Hydraulic fluid cap 261 liter
Download datasheets
Cat 320 expert review
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Overview
The Cat 320 is a 21.2 t (46,700 lb) next-gen excavator powered by a 110.5 kW (150 hp) Cat C7.1 engine. It delivers up to 6.72 m (22 ft) digging depth and 1.4 m³ (1.8 yd³) bucket capacity.
Pros Heavy-duty bucket volume delivers strong dig output.
Full factory tech (Grade Assist, payload, UI) reduces setup and rework.
Full factory tech (Grade Assist, payload, UI) reduces setup and rework.
Cons At 21.2 t, needs stable ground and transport setup.
Built-in tech requires operator training to get full value.
Built-in tech requires operator training to get full value.
Performance & Efficiency
Main hydraulics at 429 L/min and up to 5,500 psi pressure deliver high dig force and control. Fuel use is cut by ~25%, and maintenance cost drops up to ~15% versus older models.
In Comparison
Compared to the PC300, you gain full tech and more power for not much more weight. Against the 323, it’s lighter, easier to move, and more cost-effective.
Verdict
The Cat 320 hits the utility-productivity-tech sweet spot. Perfect for high-production digging and grading. Skip it if your work is ultra-compact or you want the simplest rig.
Cat 320 owner rating
Cat 320 Medium excavators [2016-2025]
2016-2025
Overall rating
Based on 2 ratings
4.5
performance
4.5
comfort
4.0
fuel efficiency
4.5
safety
5.0
features
4.5
5 stars
50 %
4 stars
50 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Cat 320 similar models
Highlight differences
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Engine model
Engine model Cat C7.1
Engine model John Deere 4045HF485
Engine model Komatsu SAA6D114E-3
Operating weight
Operating weight 21,200 kg
Operating weight 10,500 kg
Operating weight 33,400 kg
Max dump height
Max dump height 7.34 m
Max dump height 5,890 mm
Max dump height 6,365 mm
Boom length
Boom length 5.7 m
Boom length 4.4 m
Boom length 6.47 m
Displacement
Displacement 7,100 cu cm
Displacement 4,500 cm3
Displacement 8,270 cu cm
Gradeability
Gradeability 70 º
Gradeability 58 º
Gradeability 70 º
Bucket digging force
Bucket digging force 133 kN
Bucket digging force 54 kN
Bucket digging force 259 kN
Bucket width
Bucket width 1,350 mm
Bucket width 700 mm
Bucket width 1,565 mm
Bucket capacity
Bucket capacity 1.4 m3
Bucket capacity 0.28 m3
Bucket capacity 2.1 cu m
Max speed forward
Max speed forward 5.5 kph
Max speed forward 5 kph
Max speed forward 5.5 kph
Max digging depth
Max digging depth 6,720 mm
Max digging depth 4,320 m
Max digging depth 6,540 mm
Max digging reach
Max digging reach -
Max digging reach 7,620 mm
Max digging reach 10,245 mm
Years
Years 2016-2025
Years 2017-2025
Years 2020-2025
Market Average
Market Average AED 192,000
Market Average AED 1,000,000
Market Average AED 900,000
Price
Price AED 145,000
Price AED 750,000
Price AED 450,000
Gross power
Gross power 110 kw
Gross power 78.3 kw
Gross power 186.43 kw
Swing speed
Swing speed 10.9 rpm
Swing speed 9.5 rpm
Swing speed 9.5 rpm
Arm crowding force
Arm crowding force 106 kN
Arm crowding force 42 kN
Arm crowding force 235 kN
Engine oil cap
Engine oil cap 15 liter
Engine oil cap 10 liter
Engine oil cap 37 liter
Drawbar Pull
Drawbar Pull 178 kN
Drawbar Pull 68 kN
Drawbar Pull 264 kN
Track width
Track width 600 mm
Track width 4.5 mm
Track width 6 cm
Track length
Track length -
Track length 2.9 m
Track length 4.03 m
Height - top of cab
Height - top of cab 3.05 m
Height - top of cab 2.72 m
Height - top of cab 3.14 m
Pump flow cap
Pump flow cap 259 lpm
Pump flow cap 160 lpm
Pump flow cap 535 lpm
Relief valve pressure
Relief valve pressure 329.98 bar
Relief valve pressure 250 bar
Relief valve pressure 353.01 bar
Fuel cap
Fuel cap 410 liter
Fuel cap 205 liter
Fuel cap 605 liter
Hydraulic fluid cap
Hydraulic fluid cap 170 liter
Hydraulic fluid cap 95 liter
Hydraulic fluid cap 188 liter
Cat 320 gallery
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