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Komatsu WA900: why contractors still prefer this 100-ton loader

Basel A.May 25, 2026 · 10 min read

A normal wheel loader can handle yard work, stockpiles, and general loading. But in a quarry or aggregate site, buyers ask a different question.

It is not just: “Can this loader move material?” It is: How much can it scoop, how fast can it load trucks, and can it keep working in dense quarry material every day?

That is where the Komatsu WA900 wheel loader fits. It is a 100-ton class large wheel loader built for high-volume loading, quarry production, aggregate handling, surface mining support, and overburden clearance.

WA900 for contractors who need fewer loading passes

In quarry work, every extra pass costs time. If the loader needs too many cycles to fill a truck, the truck waits longer, fuel use goes up, and the whole loading area slows down.

The WA900 is built for contractors who need more material moved per bucket. It can scoop large volumes, lift heavy material, and load big trucks with fewer passes than smaller wheel loaders.

It fits jobs as:

  • Quarry face loading
  • Aggregate stockpile handling
  • Crusher feeding
  • Surface mining support
  • Overburden clearance
  • Loading large rigid dump trucks
  • Sand, gravel, rock, and road base handling

For contractors, the WA900 is not just a bigger loader. It is a production machine for sites where loading speed, bucket size, and truck cycles matter every day.

WA900 Bucket: one scoop can fill several small tippers

Komatsu WA900 on Makana comes with a 13 m³ standard rock bucket. To picture that, some small tipper bodies, such as Hino 300 tipper models, carry around 2 to 3 m³ by body volume. So one full WA900 bucket can equal around 4 to 7 small tipper bodies, depending on the truck body size and material fill.

On site, that can mean one large scoop of crushed rock, sand, gravel, road base, overburden, or mixed quarry material. For contractors, the value is simple: fewer passes, faster truck loading, and less waiting time around the loading area.

Bucket width of WA900: almost twice the width of a shipping container

The WA900 bucket is about 4.81 m wide, close to 16 ft. A standard shipping container is about 8 ft wide, so the WA900 bucket is almost twice as wide as a container. That gives buyers a simple way to understand the size before looking at technical numbers.

This wide bucket helps the loader take a large bite from stockpiles and quarry faces. It also helps when feeding crushers or loading trucks where every pass needs to carry more material.

WA900 tipping load can handle 60 tons before tipping

The WA900 has a 57.4-ton tipping load. In simple terms, that means the loader can handle almost 60 tons of load before reaching its tipping point, under rated test conditions.

This matters because quarry material is heavy. A full bucket of wet sand, dense gravel, blasted rock, road base, or overburden can put huge weight on the front of the machine.

On site, the WA900 is not only lifting. It is turning, reversing, climbing, and dumping near trucks or stockpiles. A high tipping load helps buyers understand why this loader can stay stable with a full heavy bucket.

Komatsu WA900: Made to Load More

The WA900 is built for large quarry loading, not light yard work. Its nearly 70-ton breakout force helps the bucket bite into dense gravel, blasted rock, compacted stockpiles, and hard overburden instead of only scraping the surface.

Once the bucket is full, the 4.64 m dump height and 2.45 m dump reach help the operator load high-sided quarry trucks more cleanly, with less repositioning.

The 856 hp Komatsu SAA12V140E-3 engine and full powershift transmission support long loading cycles, strong response, and steady power while the loader is digging, lifting, reversing, and loading all day.

Where to Find a Used Komatsu WA900 in Dubai

Makana currently lists Komatsu WA900 wheel loaders at its yard in Dubai, UAE. These Japan-made machinee come with a 13 m³ rock bucket, nearly 60-ton tipping load, nearly 70-ton breakout force, 4.64 m dump height, 856 hp Komatsu engine, and Loadrite system.

The loaders are available for buyers in the UAE and for export abroad. Buyers can review the product photos, machine details, and full inspection report, watch operational videos, then arrange online or in-person viewing through Makana.

All units listed on Makana are +75 point inspected, with clear machine information to help buyers understand the machine condition and choose the right loader for their work.

WA900 vs Smaller Komatsu Loaders

Makana also lists other Komatsu wheel loaders, including WA470-5, WA470-6, WA470-6R, WA500-6, and WA600-3. These are useful loaders, but they serve different job sizes.

ModelSize classBucket sizeEngine powerBest fit
Komatsu WA470-623-ton3.6 m³ GP bucket273 hpYards, batching plants, stockpile work, general bulk loading
Komatsu WA470-522-ton4.6 m³ loose material bucket261 hpStockpile work, truck loading, aggregate yards
Komatsu WA500-639-ton5.3 m³ XD bucket353 hpQuarry loading, mining support, larger bulk material handling
Komatsu WA600-346-ton2.1 m³ excavation bucket458 hpHeavy quarry work, excavation bucket applications, bulk earthmoving
Komatsu WA900-3E0107-ton13 m³ rock bucket856 hpHigh-volume quarry loading, large rigid truck loading, surface mining support

The WA470 models fit yards, batching plants, stockpile support, and general loading. The WA500 and WA600 move into heavier aggregate and quarry support work. The WA900 is the high-volume option for bigger buckets, stronger breakout force, higher truck loading, and faster production cycles.

Prefer Cat or Volvo Loaders? Available at Makana

Some buyers compare Komatsu with Cat wheel loaders or Volvo wheel loaders, especially if they already run mixed fleets. Makana also lists Cat and Volvo loader options for buyers who want to compare different brands, bucket setups, and price ranges.

ModelSize classBucket / loading setupEngine powerBest fit
Volvo L120F19-ton3.4 m³ bucket, 4.09 m dump height217 hpYards, stockpiles, truck loading, construction material handling
Cat 966H23-ton3.2 m loose material bucket, 14-ton tipping load260 hpSand, gravel, road base, truck loading, infrastructure sites
Cat 966H23-ton4.2 m³ GP bucket with teeth and top grid260 hpBulk material handling, backfilling, rocks, desert site work
Cat 966L23-ton4.6 m³ GP bucket, 3.2 m bucket width305 hpHigh-volume stockpile work, aggregate yards, truck loading
Cat 980K31-ton3.5 m spade nose bucket, 19-ton tipping load369 hpQuarry loading, face work, shot rock, heavier bulk movement

These Cat and Volvo loaders sit in smaller working classes than the WA900. They are useful for yards, stockpiles, truck loading, aggregate work, and construction sites, while the WA900 remains the large quarry loader option for buyers who need a 13 m³ bucket, 107-ton size class, higher breakout force, and larger truck-loading capacity.

FAQs

Is Komatsu WA900 good for quarry work?

Yes. Komatsu WA900 is built for quarry, aggregate, surface mining, overburden clearance, crusher feeding, and large-scale material loading.

What bucket size does Komatsu WA900 have?

The Komatsu WA900 listed on Makana has a 13 m³ standard rock bucket.

What does 13 m³ bucket capacity mean?

It means the bucket can carry around 13 cubic metres of loose material. That is enough to fill a small room or around 65 wheelbarrows, depending on the material.

Is Komatsu WA900 bigger than WA470 and WA600?

Yes. WA900 is much larger than WA470 and WA600 models. It is built for high-volume quarry and mining-style loading, while smaller loaders are better for yards, batching plants, and medium production work.

What engine does Komatsu WA900 use?

The WA900 listed on Makana uses an 856 hp Komatsu SAA12V140E-3 diesel engine.

Why does breakout force matter on a wheel loader?

Breakout force helps the bucket dig into dense material such as compacted stockpiles, blasted rock, gravel, and overburden. It affects how well the bucket fills.

What should I inspect before buying a used WA900?

Check the bucket, boom arms, linkage, hydraulics, tyres, transmission, axles, brakes, articulation joint, cooling system, Loadrite system, and inspection report.

Where can I buy a used Komatsu WA900 in Dubai?

You can source a used Komatsu WA900 through Makana in Dubai, with viewing options, inspection report, photos, specifications, and buyer support.

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build datetime: 5/25/2026, 3:08:23 PM