Mini dumper bucket volume vs payload body

Reviewed by Justin, Product Engineer· Based on official factory specifications, updated July 2026· Sources cited below

A bucket rated at 0.5 cbm sounds like a fixed number, but what it can actually carry depends on what's going into it. Wet concrete, dry soil, and mulch all take up the same volume very differently in kilograms, and the machine's frame and hydraulics have a rated load limit regardless of how much room is left in the bucket.

Two Dumpers, Same Bucket Number, Different Rated Load

The KS3000 and the KS2700TE both list a 0.5 cbm bucket capacity, but the KS3000 is rated to carry 1360 kg and the KS2700TE 1200 kg, a 160 kg difference on paper-identical bucket volume. That gap comes from the chassis, axle, and hydraulic rating behind the bucket, not the bucket itself, which is exactly why volume alone doesn't answer "how much can it carry."

Source: Rhinoceros official factory specification pages, rhinocerosequipment.com, July 2026.

What Material Density Does to That Number

Construction materials vary enough in weight-per-volume that the same bucket fills to very different loads depending on what's in it. Wet concrete runs roughly 2,400 kg per cubic metre, wet soil or mud roughly 1,600 to 2,000 kg per cubic metre, and dry sand roughly 1,600 kg per cubic metre - all rough figures that vary by mix and moisture, but useful for sizing.

Run that against the KS3000's 0.5 cbm bucket: a full load of wet concrete would weigh around 1,200 kg, comfortably under its 1360 kg rating. The same full bucket of wet, dense soil could push close to 1,000 kg, still under the limit but with less margin. The point isn't the exact number - it's that "full bucket" and "at rated capacity" aren't always the same moment, and which one comes first depends on the material.

How to Actually Size This for Your Job

Estimate the density of what you're moving, multiply by the bucket volume, and compare that figure to the rated max load, not the bucket volume alone. If the calculated weight exceeds the rated load before the bucket looks full, that's the real ceiling, and overloading past it stresses the frame and hydraulics regardless of how much visual room remains in the bucket.

Frequently Asked Questions

Why do the KS3000 and KS2700TE have the same bucket size but different load ratings?
   The bucket volume is the same, but the rated load weight reflects the chassis, axle, and hydraulic capacity behind it, which differs between a wheel dumper built for firm-ground speed and an electric buggy built around a different frame and drivetrain.

Is it safe to fill the bucket completely if the material is lighter than average?
   Generally yes, as long as the calculated weight stays under the rated max load, but confirm with Rhinoceros for your specific model and material if you're working close to the limit rather than assuming a visual "full bucket" is automatically safe.

Does overloading past the rated capacity damage the machine immediately?
   Not always immediately, but repeated overloading stresses the frame and hydraulic system over time, so treating the rated max load as a hard limit rather than a rough guideline protects the machine's working life.

Sources

• Rhinoceros (Shandong Kenstone Heavy Machinery Co., Ltd.) - KS3000 official specification page, retrieved July 2026

• Rhinoceros (Shandong Kenstone Heavy Machinery Co., Ltd.) - KS2700TE official specification page, retrieved July 2026

• Rhinoceros (Shandong Kenstone Heavy Machinery Co., Ltd.) - XN800 official specification page, retrieved July 2026

View the full specifications at rhinocerosequipment.com.

Material density figures are general engineering estimates and vary by mix, moisture, and source; confirm current machine specifications directly with Rhinoceros before purchase.