Precimax Engineers Limited supplies Oil or Gas Energized Pusher Furnace. Precimax Engineers Limited manufactures a wide range of furnaces, ovens, kilns, bull blocks, drawing machines and spooling machines. The Oil or Gas Energized Pusher Furnace is designed for use in high volume production of essentially similar parts. The Pusher Furnace is available with electro-mechanical or hydraulic pusher arrangement in one to two rows.