Cat 320 vs Komatsu PC450-8
The Komatsu PC450-8 is the heavier machine, at 44.4 t against 21.3 t, and the Komatsu PC450-8 has more power (257 kW against 117 kW).
The Cat 320 is ahead on: turns tighter, lower to transport. The Komatsu PC450-8 is ahead on: more power, digs deeper, reaches further, dumps higher, bigger bucket or body, bigger fuel tank.
Below, every figure both makers publish sits side by side, with the Cat 320 and the Komatsu PC450-8 drawn to the same scale from their dimension drawings.
At a glance
Bold is the machine ahead on each figure, with its lead.
| Figure | Cat 320 | Komatsu PC450-8 |
|---|---|---|
| Operating weight | 21,300 kg | 44,350 kg |
| Net powerHigher is better | 117 kW | 257 kW+120% |
| Max digging depthHigher is better | 6.72 m | 7.345 m+9% |
| Max reach at ground levelHigher is better | 9.86 m | 11.23 m+14% |
| Max dumping heightHigher is better | 6.49 m | 7.08 m+9% |
| Bucket capacityHigher is better | 1.19 m³ | 3.5 m³+194% |
| Fuel tankHigher is better | 345 L | 650 L+88% |
| Tail swing radiusLower is better | 2.83 m+22% | 3.645 m |
| Overall height (to top of cab)Lower is better | 2.96 m+9% | 3.25 m |
| Overall length | 9.53 m | 11.995 m |
All specifications
Every figure the makers publish. Search for one, or show only those that differ.
Dimensions
Performance
Weight
Engine
Hydraulics
Service capacities
Service intervals
Working range
Sources: Cat 320 Hydraulic Excavator (Tier 3) brochure AEXQ2332-09 (2024, build 07G) · Komatsu PC450-8 / PC450LC-8 / PC450LC-8 HD brochure, German edition (Machine.Market copy)
Drawn to scale
Side views measured off each maker's dimension drawing, front edges and ground lined up.
Cat 320 vs Komatsu PC450-8: questions
Which is bigger, the Cat 320 or Komatsu PC450-8?
By operating weight the Komatsu PC450-8 is the biggest at 44.4 t, then the Cat 320 at 21.3 t.
Which has more power, the Cat 320 or Komatsu PC450-8?
The Komatsu PC450-8: Cat 320 117 kW (157 hp), Komatsu PC450-8 257 kW (349 PS) (net power), a 120% difference.
Which digs deeper, the Cat 320 or Komatsu PC450-8?
The Komatsu PC450-8: Cat 320 6.72 m, Komatsu PC450-8 7.345 m (max digging depth), a 9% difference.
Which reaches further, the Cat 320 or Komatsu PC450-8?
The Komatsu PC450-8: Cat 320 9.86 m, Komatsu PC450-8 11.23 m (max reach at ground level), a 14% difference.
Which has the bigger bucket, the Cat 320 or Komatsu PC450-8?
The Komatsu PC450-8: Cat 320 1.19 m³, Komatsu PC450-8 3.5 m³ (bucket capacity), a 194% difference.
Which has the bigger fuel tank, the Cat 320 or Komatsu PC450-8?
The Komatsu PC450-8: Cat 320 345 L, Komatsu PC450-8 650 L (fuel tank), a 88% difference.
Which turns tighter, the Cat 320 or Komatsu PC450-8?
The Cat 320: Cat 320 2.83 m, Komatsu PC450-8 3.645 m (tail swing radius), a 22% difference.
Where do these figures come from?
Each model's own published spec sheet or brochure, linked under the table. Builds differ by market and year, so confirm the figures for a particular machine with its dealer.
Can I rent or buy these machines in the UAE?
Each model's page lists the ones for hire and for sale on EquipmentsFinder now, with typical prices in AED.
