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L.A. Abrasion

Test for resistance to abrasion in crushed rock, slag, crushed and uncrushed gravel using the Los Angeles testing method. Cut down on machine noise with the optional sound enclosure.

Aggregate Testing Equipment

Humboldt provides a wide range of Aggregate testing equipment.

We carry a large selection of sieves, shakers, abrasion devices, moisture testing equipment, splitters, screen shakers, gravity test equipment and classification devices.

Moisture Testing

The Speedy® 2000 Moisture Tester
and the Trident Moisture Probe
offer the latest technology for
measuring moisture content
in a variety of materials.


Our sieves are of the highest quality to ensure consistent fit, accurate specifications and durable construction. Use our sieve wizard to locate and order sieves for your specific need.

Sample Splitters

For rapid, single-step reduction
of large sample volumes –
ideal for field applications.

Gravity Flask

The key element in a newly developed method for conducting specific gravity/absorption determinations for aggregate.


Features a crank operated shelf that raises the sample for easier immersion. Includes heater, circulating pump and scale.

Sieve Shakers

Engineered with rugged steel and alloy materials to withstand harsh duty cycles.

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