Komatsu PC78US Mini Excavator
KomatsuExcavator
- Year
- 2012-2018
- Hours
- 800-1,500 h (per unit)
- Price
- US$18,000
- HP power
- 57.4 hp / 42.8 kW
SK Yard — KOMATSU Stock FileInspected/Export-ready
Used Komatsu Excavators
Used Komatsu Excavators for Sale from China
Inspected Komatsu excavators from ready stock: verify year, hours, and configuration with photos, operating videos, and serial checks before you pay. PC78US units available now.
- Tonnage range
- 5–49t
- Model classes
- 6
- Inspected
- 100%
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Komatsu excavators in stock now
Popular SearchesKomatsu models buyers ask for
These are the Komatsu models and classes we source most. Tap any one to send a quote request with the model pre-filled — we reply with matching in-stock or sourced units.
Spec SheetModels & sizes for export
Komatsu excavator models and sizes
The sizes buyers ask for most — PC55 minis through the PC200/PC210 workhorse class to PC490 mining units. In-stock machines are above; "sourcing" units are usually located from partner yards within days.
| Model | Class | Typical Jobs | Status |
|---|---|---|---|
| Komatsu PC78US | 7-8 ton tight tail | Urban jobsites, utilities, roadside work | In stock |
| Komatsu PC55MR / PC58 | 5-6 ton mini | Landscaping, small construction, rental | In stock |
| Komatsu PC128US / PC138US | 12-13 ton tight tail | City construction, confined sites | In stock |
| Komatsu PC200 / PC210 | 20-21 ton | Most popular export class, general earthmoving | In stock |
| Komatsu PC300 / PC360 | 30-36 ton | Heavy earthmoving, quarry work | In stock |
| Komatsu PC400 / PC490 | 40-49 ton | Mining, large infrastructure | In stock |
Field Note 01
Tight-tail PC78US and Komatsu minis
The ultra-short tail-swing US series is a Komatsu specialty few brands match at the price. For urban, roadside, or in-plant work a used PC78US does jobs a conventional machine physically cannot. The PC55MR sits just below it — see all brands on our used mini excavators page.
Field Note 02
Why import a used Komatsu from China
Komatsu machines are known for fuel-efficient engines, the HydrauMind hydraulic system, and strong build quality — many units are originally Japanese-market machines with disciplined maintenance history. Prices sit slightly below equivalent CAT units while keeping excellent worldwide parts availability.
Field Note 03
Komatsu-specific inspection points
Beyond standard checks: hour-meter consistency versus pedal, seat and joystick wear, HydrauMind response under load, swing and travel motor condition, and undercarriage wear. Where available we pull Komtrax records to verify hours. Every unit ships with photos, videos and serial close-ups before deposit.
FAQUsed Komatsu questions
Used Komatsu excavator questions
How much does a used Komatsu excavator cost from China?+
Depends on model, year, and hours. Tight-tail-swing machines like the PC78US typically price in the low-to-mid five figures in US dollars; 20-ton PC200-class machines are quoted per unit by year and condition. Listed machines carry both a single-unit price and a 3+ unit wholesale price.
Are used Komatsu excavators from China originally Japanese machines?+
Many are. A large share of used Komatsu stock in China was originally delivered in Japan or through official Komatsu China channels. We confirm each machine's origin from its serial plate and, where available, Komtrax service records before you place a deposit.
What should I check on a used Komatsu excavator before paying?+
Standard checks plus Komatsu-specific points: hour meter consistency against pedal and seat wear, HydrauMind hydraulic response, swing and travel motor condition, and undercarriage wear. We provide photos, operating videos, and serial close-ups before deposit, and third-party inspection can be arranged.
What does the US in PC78US mean?+
US marks Komatsu's ultra-short tail swing series: the counterweight stays almost inside the track width, so the machine can slew safely against walls and in single-lane roads. It is the preferred configuration for urban and utility work.
Do you sell used Komatsu mini excavators?+
Yes. The PC55MR and PC58 (5-6 ton) are the mini classes we source most, and the in-stock PC78US sits just above them with the same tight-tail advantage. Komatsu minis fit a standard shipping container, which keeps sea freight cost low — tell us your budget and destination port for availability.
About Komatsu & your landed cost
Founded 1921
Komatsu started in 1921 as a mining equipment workshop in Komatsu City, Japan. It is now the world's second-largest construction equipment manufacturer. Komatsu excavators are known for their proprietary engines, closed-center hydraulic systems, and the KOMTRAX remote monitoring system.
Why Komatsu
Komatsu builds its own engines, pumps, and control systems in-house — everything is designed to work together. The closed-center load-sensing hydraulics deliver precise control and fuel efficiency. In the used market, Komatsu holds value just behind CAT, and the global dealer network is deep across Asia, the Americas, and Africa.
Landed cost estimate
A used Komatsu PC200/PC210 (20-ton class): machine ~US$22-35k + ocean freight US$3-5k (flat rack or RORO) + port handling & customs duty (varies by country; budget 5-10% of CIF). Mini excavators (PC55 and under) ship in containers at lower cost. We provide a full cost breakdown with shipping options before you commit.
How To Buy
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