Komatsu has earned a strong position in the global mining industry. Their excavators are known for consistent hydraulic performance, low fuel consumption, and solid build quality that holds up under sustained heavy-duty operation.
This guide covers the models of Komatsu mining excavators most commonly used across different mining operations — from small quarries to large open-pit sites. It includes real pricing from available used inventory, spec comparisons, and practical guidance on selecting the right machine for specific mining tasks.
Why Mining Operators Choose Komatsu
A few things stand out when you look at why Komatsu keeps coming up in mining fleets worldwide.
Their load-sensing hydraulics adjust power output based on what the machine is actually doing. That means less wasted fuel during lower-load moments in the cycle. Over a 10-hour mining shift, that efficiency adds up to meaningful savings.
The build quality on Komatsu’s PC series is also designed for sustained cycles. Mining excavators do not get the variety that construction machines enjoy. They repeat the same dig-swing-dump cycle for hours on end. Komatsu’s hydraulic cooling and system design handles that repetition better than many brands.
Parts networks are another factor. Komatsu has established dealer presence across South America, Southeast Asia, the Middle East, and Africa — all major mining regions. When a component needs replacing, lead times are shorter than with less widely supported brands.
Mining Applications and What Size Machine Each Needs
Mining operations vary significantly in scale and soil type. A small aggregate quarry needs a different machine than a large copper or coal mining operation.
| Mining Application | Recommended Weight | Common Komatsu Models |
| Small quarry and rock breaking | 20 – 27 T | PC200, PC220, PC270 |
| Sand and aggregate extraction | 20 – 30 T | PC220, PC240, PC300 |
| Medium open-pit surface mining | 27 – 35 T | PC300, PC350 |
| Heavy quarry excavation | 35 – 45 T | PC350, PC360, PC400 |
| Bulk overburden removal | 40 T+ | PC400-7, PC450-7 |
Smaller quarry operations targeting 500 to 1,000 cubic meters per day typically run 20 to 27-ton machines. They are easier to move between work areas and cheaper to fuel.
Larger mines targeting 2,000 cubic meters and above need 35-ton machines and up. The PC350 and PC450 cover most of this demand.
Komatsu Mining Excavator Models — Full Comparison Table
All specs and pricing below are based on actual used inventory available from Shanghai Yonggong Trading Co., Ltd. in 2026.
| Model | Weight | Engine | Dig Depth | Bucket | Year | Hours | Price (USD) |
| PC200-8 | 20 T | Komatsu SAA4D107E | 6.6 m | 0.8 m³ | 2020 | 1,700 H | $35,000 |
| PC220-8k | 22 T | Komatsu SAA4D107E | 6.8 m | 0.9 m³ | 2019 | 2,600 H | $33,000 |
| PC240-8 | 24 T | Komatsu SAA4D107E | 6.9 m | 1.1 m³ | 2020 | 1,800 H | $33,000 |
| PC270-7 | 27 T | Komatsu SAA6D107E | 7.1 m | 1.2 m³ | 2020 | 2,200 H | $43,000 |
| PC300-7 | 30 T | Komatsu SAA6D114E | 7.4 m | 1.4 m³ | 2019 | 2,400 H | $47,000 |
| PC350-7 | 35 T | Komatsu SAA6D114E | 7.6 m | 1.6 m³ | 2019 | 2,300 H | $60,000 |
| PC350-8 | 35 T | Komatsu SAA6D114E | 7.6 m | 1.6 m³ | 2020 | 1,700 H | $68,000 |
| PC360 | 36 T | Komatsu SAA6D114E | 7.7 m | 1.7 m³ | 2020 | 1,800 H | $55,000 |
| PC400-7 | 40 T | Komatsu SAA6D125E | 7.9 m | 1.9 m³ | 2019 | 2,818 H | $65,000 |
| PC450-7 | 45 T | Komatsu SAA6D125E | 7.8 m | 1.9 m³ | 2020 | 1,900 H | $68,000 |
For complete technical data including transport dimensions, hydraulic flow rates, and full engine output, visit the Komatsu excavator specs page.
The PC350 Series — Go-To Komatsu for Medium Mining
The PC350 consistently appears in mining fleets across Southeast Asia, Africa, and South America. The reason is straightforward — it sits in a practical weight class for medium-scale operations.
At 35 tons, it delivers a 1.6 m³ bucket capacity and 7.6-meter dig depth. That covers most quarry faces, overburden benches, and open-pit extraction tasks with solid cycle times. It also stays within transport limits that allow relocation without complex heavy-haul permitting in many countries.
Two versions are currently available and they tell a useful story about hours versus price.
| Version | Year | Hours | Price | Best For |
| PC350-7 | 2019 | 2,300 H | $60,000 | Budget priority, proven machine |
| PC350-8 | 2020 | 1,700 H | $68,000 | Lower hours, newer hydraulics |
The PC350-8 at 8,000 more for a lower-hour unit often makes sense.
PC450-7 — When Maximum Output Matters
The PC450-7 is the largest Komatsu model in available inventory. It is designed for operations where daily output volume is the top priority.
- Operating weight: 45 tons
- Engine: Komatsu SAA6D125E, 330 HP
- Max dig depth: 7.8 m
- Bucket capacity: 1.9 m³
- Year: 2020 | Hours: 1,900 H
- Price: $68,000
At 330 horsepower and nearly 2 cubic meters of bucket capacity, this machine handles large-scale quarry work, bulk overburden removal, and heavy loading operations with authority.
What stands out about the pricing is that the PC450-7 and the PC350-8 are currently the same price at $68,000. The PC450-7 is 10 tons heavier with more engine power and a larger bucket. For operations where transport weight is not a constraint, the PC450-7 delivers more output per dollar spent.
How Hours and Price Relate Across the Komatsu Lineup
Working hours are the most reliable indicator of remaining machine life. Here is how the current Komatsu mining inventory stacks up when you compare hours to price side by side.
| Model | Weight | Hours | Price | Price Per Ton |
| PC220-8k | 22 T | 2,600 H | $33,000 | $1,500/T |
| PC240-8 | 24 T | 1,800 H | $33,000 | $1,375/T |
| PC300-7 | 30 T | 2,400 H | $47,000 | $1,567/T |
| PC360 | 36 T | 1,800 H | $55,000 | $1,528/T |
| PC400-7 | 40 T | 2,818 H | $65,000 | $1,625/T |
| PC450-7 | 45 T | 1,900 H | $68,000 | $1,511/T |
The PC360 and PC450-7 stand out in this comparison. Both carry relatively low hours for their price class and offer competitive cost-per-ton ratios. The PC360 at $55,000 with 1,800 hours is particularly notable — it delivers 36-ton capability at a price below both PC350 variants.
Most well-maintained Komatsu excavators operate reliably to 8,000 to 10,000 hours before major overhauls. Machines under 3,000 hours still have significant productive life ahead.
What to Inspect Before Buying a Used Komatsu Mining Excavator
Mining machines work harder than construction excavators. The same dig-swing-dump cycle repeats for hours without the variety that lighter construction work provides. That puts specific wear on key components.
Hydraulic pump output — Test the machine under full load. Slow or weak bucket and arm movement at full lever signals worn pumps or reduced system pressure. Repairs in this area are expensive.
Undercarriage condition — On 30 to 45-ton machines, a full undercarriage replacement can cost 30,000. Inspect track tension, roller condition, sprocket wear, and shoe thickness before purchasing.
Swing motor and travel motors — These take heavy demand in mining cycles. Listen for noise and check response time when swinging under load and traveling on grade.
Boom and arm welds — Stress cracks can develop at welded joints on machines that have been heavily loaded. A visual inspection at the main weld points takes 10 minutes and can reveal serious structural issues.
Service documentation — High hours are manageable if the maintenance history supports them. Oil analysis records, filter change logs, and hydraulic service history all tell you how well the machine was looked after.
Komatsu vs Other Brands for Mining
Buyers sometimes compare Komatsu against Caterpillar, Hitachi, and Doosan when evaluating mining excavators. Each brand has strengths worth knowing.
| Brand | Strengths | Price Position | Parts Availability |
| Komatsu | Fuel efficiency, reliable hydraulics, long service intervals | Mid to premium | Excellent globally |
| Caterpillar | Highest resale value, largest parts network | Premium | Excellent globally |
| Hitachi | Hydraulic precision, Japan build quality | Mid to premium | Strong in key markets |
| Doosan | Lower purchase price, solid build for the cost | Budget to mid | Good in select regions |
For mining operations in markets with active Komatsu dealer networks, the PC350 through PC450 range offers some of the best long-term value in the used heavy excavator market.
Where to Source Komatsu Mining Excavators
Shanghai Yonggong Trading Co., Ltd. has been exporting used excavators to mining operations for over 20 years. Their Komatsu inventory runs from the PC200 class through the PC450, covering entry-level quarry work to heavy open-pit operations.
Each machine is inspected before export. The team manages shipping logistics, export documentation, and after-sales support from China to destination port.
Browse the full available stock on the used Komatsu excavators page, or view mining-specific models across all brands on the mining excavators page.
To display all Komatsu machines filtered for mining applications with complete specs in a comparison table, use this shortcode:
| Used Excavator Image | Excavator Title | Excavator Brand | Excavator Class | Operating Weight | Engine Model & Net Power | Max Dig Depth | Bucket Capacity | Transport Dimensions: Length, Width, Height | Applications | Working Hours | Production Year | Price | Compare |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Used Caterpillar Excavator CAT 420 Yong Gong | Caterpillar | Large | 42 T | CAT C3.6 100 HP | 4.3 m | 1.0 m³ | 7.3 x 2.3 x 2.8 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 300 H | 2023 | $26,000 | |
 | Used Catepillar 320GC Excavators | Caterpillar | Large | 43.9 T | CAT C7.1 145 HP | 6.7 m | 1.0 m³ | 9.5 x 2.9 x 3.0 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 439 H | 2022 | $61,000 | |
 | Used Hitachi ZX470 Excavator | Hitachi | Large | 47 T | Isuzu 6WG1 349 HP | 7.7 m | 2.1 m³ | 11.9 x 3.4 x 3.5 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 2700 H | 2019 | $70,000 | |
 | Used Hitachi ZX650 Excavator | Hitachi | Large | 65 T | Diesel Engine 488 HP | 8.5 m | 2.93 m³ | 11.8 x 3.4 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 2800 H | 2019 | $100,000 | |
 | Used Komatsu PC450-7 Excavator | Komatsu | Large | 45 T | Komatsu SAA6D125E 330 HP | 7.8 m | 1.9 m³ | 11.9 x 3.3 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 1900 H | 2020 | $68,000 | |
 | Used CAT349E Excavator | Caterpillar | Large | 49 T | CAT C13 410 HP | 7.6 m | 2.4 m³ | 11.9 x 3.5 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 1100 H | 2021 | $100,000 | |
 | Used CAT345D Excavator | Caterpillar | Large | 45 T | CAT C13 345 HP | 7.1 m | 2.0 m³ | 11.5 x 3.4 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 1900 H | 2020 | $85,000 | |
 | Used Volvo EC480d Excavator | Volvo | Large | 48 T | Diesel Engine 360 HP | 8.5 m | 2.16 m³ | 11.8 x 3.4 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 1800 H | 2020 | $15,000 | |
 | Used Sany SY485H Excavator | Sany | Large | 49 T | Diesel Engine 364 HP | 8.5 m | 2.18 m³ | 11.8 x 3.4 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 700 H | 2021 | $80,000 | |
 | Used Hyundai 485LVS Excavator | Hyundai | Large | 48.5 T | Diesel Engine 150 HP | 6.9 m | 0.9 m³ | 9.5 x 2.8 x 3.0 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 2200 H | 2019 | $68,000 | |
 | Used Doosan DH420LC-7 Excavator | Doosan | Large | 42 T | CAT C3.6 100 HP | 4.3 m | 1.0 m³ | 7.3 x 2.3 x 2.8 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 2800 H | 2018 | $52,000 | |
 | Used Kobelco SK480 Excavator | Kobelco | Large | 48 T | Diesel Engine 360 HP | 8.5 m | 2.16 m³ | 11.8 x 3.4 x 3.6 m | Mining - Mining & Quarry Excavation Quarrying - Mining & Quarry Excavation | 2800 H | 2019 | $65,000 |
For a filtered view showing only heavy Komatsu machines above 30 tons for large-scale mining:
