We will build equipment for your specific needs.Here are a couple examples of equipment we have built for our customers. For information on your specialized equipment needs contact Mike Anderson at 1-800-662-8265 or mikea@mctank.com. 1998 RB Mack has a 4000 gallon insulated tank rear unload with a hydraulic driven 3 inch roper product can be used for loading or unloading. Also has a spray bar 8, 10, or 12 foot long for spraying roads for dust control in coal mines. 2002 Freightliner FLD120SD has a 2x2000 gallon insulated tank rear unload with a 3 inch roper product pump can be used for loading or unloading. Also has a spray bar 8, 10, or 12 foot long for spraying roads for dust control in coal mines.