The 36-in. by 2-in. SuperBrush dual head brush sander has twice the feed rate of the current single head unit. Sealer-sand or whitewood sand doors in one pass up to 30 fpm, the company said. The machine is capable of sanding 900, 2-ft by 2-ft doors per hour or 7,200 doors per 8-hour shift. The brush heads can also be used in combination. With production speeds of up to 60 fpm, sealer-sand and whitewood sanding doors can be accomplished in one pass, translating into 3,600 2-ft by 2-ft doors per hour.