The new VIBCO XL Bertha™ DC-5000 vibrator is ideal for use on the tri-axel "coal bucket" style dump trucks typically used to haul fly ash and coal. It is also ideal for use on large dump trucks and trailers, or when hauling particularly stubborn or sticky material. With 5000 lbs of force, the VIBCO "XL Bertha" is the most powerful dumpbody vibrator on the market.