Profile: WingFan GB Ltd. specializes in impellers for engine cooling. Our mounting types contain com-plete flex-i-bil-i-ty for adapt-ing to any drive sys-tem, in-clud-ing hy-draulic drives. We provide blades with sickle profile, H-hubs for blades with H-blade root and bar stock center bosses. The hubs are made of aluminum and a range of spe-cial drop forged aluminum cen-ter boss-es are avail-able. For corrosive environments, the impellers can be supplied with a protective coating and stainless steel bolts & nuts.