Wet Washing

Wet Washing Sieves are particularly useful for materials that are fragile and not water soluble, Wet Washing Sieves are used in the determination of fines content or to wash away fines during sample preparation for particle size testing. Corps of Engineers Wash Screen Assembly and Wet Wash Sieve Stands are also available.

Aggregate Washers are used to automatically wash samples and remove particles and inconsistencies. Better results are achieved than by hand washing in the process of passing the wash water through a No. 200 sieve which prevents the loss of oversize material. Water is continuously fed into the drum and the sample is agitated until the it becomes clear, meaning that the fines have been sufficiently removed from the sample.

Humboldt’s Heavy Duty Aggregate Washers have a 15 lb. (6.8kg) capacity with a 10.75” dia. X 13” D (27 x 33cm) diameter revolving drum that is designed to lock in four angle positions. Washers are available in 120V 60Hz and 220V 50Hz models.

Standard Aggregate Washers are available in two sizes, one built for processing of larger aggregate and soil samples up to 15 lb. (7kg) and the other designed for washing geotechnical or smaller aggregate samples of 6-8 lb. (2.7-3.6kg). The drum is removed by swiveling the gooseneck water tube aside. Both size models come with enclosed gear motors for drum rotation and include power cords and GFCI plugs and available in both 120V 60Hz and 220V 50/60Hz.

All Humboldt Aggregate Washers are designed to eliminate the high cost and time required for manual methods and conform to ASTM C535, ASTM C117 and AASHTO T11 standards. No. 200 sieves are available – sold separately.