Aggregate
Aggregate Power. Versatility is our specialty. While all Express Blower models are capable of spreading aggregates and heavy or abrasive materials, the MD and HD option on our TM or truck mount models and the SKHD model bring that capability to another level.. At 160 feet and using our standard EB blower hose, the HD has been tested to blow 3/4inch round rock over 48 tons per hour.