CAT 320D vs Komatsu PC200-8 vs Hitachi ZX200-3: Used 20-Ton Excavator Comparison
Compare CAT 320D, Komatsu PC200-8 and Hitachi ZX200-3 used excavators by application, inspection focus, parts support and total purchase risk.
CAT 320D, Komatsu PC200-8 and Hitachi ZX200-3 are frequently considered by buyers looking for a used 20-ton-class excavator. The best choice depends less on brand reputation alone and more on local support, specific machine condition and job requirements.
The cover image is an illustrative comparison image, not a photograph of the specific units offered for sale.
Quick answer: shortlist all three when parts support is available locally, then buy the best verified machine. At this age, hydraulic performance, undercarriage, service evidence and previous application usually matter more than small brochure differences.
Buyer-focused comparison
| Factor | CAT 320D | Komatsu PC200-8 | Hitachi ZX200-3 |
|---|---|---|---|
| Common buyer reason | Broad market familiarity and support | Balanced general-purpose reputation | Responsive hydraulic feel and excavating capability |
| Best use case | General construction and earthmoving | Roadwork, site preparation and fleet use | Digging, grading and general excavation |
| Key purchase check | Electronics, fuel system and hydraulic condition | Pump, control system and undercarriage | Hydraulic system, electrical condition and cooling |
| Final deciding factor | Local parts/service plus condition of the exact unit | ||
Performance should be tested under load
Do not compare only idle-speed videos. Ask each machine to dig, lift, swing and travel after reaching working temperature. Watch combined-function speed, hydraulic noise, cylinder drift and whether power changes after warm-up.
Parts support and technician familiarity
A technically good machine can still create downtime if filters, seals, undercarriage parts, electronic components or diagnostic support are difficult to obtain. Ask local service providers which model they support best before final selection.
Undercarriage can change the value comparison
A lower purchase price may disappear if track chains, sprockets, rollers and idlers need early replacement. Request close-ups and measurements where possible, then compare remaining undercarriage life across all three candidates.
Previous application matters
- Breaker and quarry work can accelerate structural and hydraulic wear.
- Demolition can damage panels, cab, boom and cooling components.
- Coastal operation can increase corrosion exposure.
- Regular earthmoving with documented service can be easier to evaluate.
How to make the final decision
- Define bucket, reach, lift and production needs.
- Confirm local parts and service support.
- Inspect one real unit of each shortlisted model.
- Calculate machine price, repairs, freight and landed cost.
- Select the unit with the strongest total evidence, not the best-looking repaint.
Use our 21-point used excavator inspection checklist for each candidate.
Compare available machines by serial number
Tell JUE QI Machinery the models you are considering, your application, destination port and preferred budget. We can send a shortlist of specific units with current photos, videos, inspection evidence and an FOB or CIF quotation.
