About | Bradley Pulverizer CompanyBradley began manufacturing the renowned single roll Griffin Mill in 1886 and, since then, has strived to supply our customers with the most economical, reliable, maintenance-free, energy-efficient pulverizing system available by incorporating the latest developments. We have equipment operating in over 40 countries in a.cari roll mill r pendulum pulverized,Airswept Mills | Bradley Pulverizer CompanyBRADLEY HERCULES MILLS. The mill pulverizes material between pendulum roll assemblies and a fixed die ring. Pulverized material from the grinding zone is carried by the air stream to a separator mounted directly above the mill. From there, product size material is carried to a collection system while oversize particles.