Trolley frame is made of welded steel forming, the steel guarantees under full load without deformation. Inside with brick masonry, easy collision site and the site of the building with a heavy load of brick, reinforced lining structural strength, walking trolley structure using self-propelled, driven by a gear drive sprocket wheel to go walking on the tracks. Trolley labyrinth seal with automatic double seal structure and soft touch, trolley into the furnace through the cam and roller ramps role trolley furnace, sealed automatically rises. Trolley out of the sealing groove automatically fall, sealed tank filled by sand seal after having to constantly add. Trolley out, electric control electric door movements are equipped with an electromagnetic brake that prevents inertial impaction furnace, and the chain of control, that after the door slightly open, automatically cut off the heating elements, while restoring power car running gear. After the door closed in place, automatically cut off the power supply trolley running gear box furnace, heating elements while restoring power. To shorten the cooling process time furnace temperature controller, trolley resistance furnace roof may be provided to accelerate the cooling exhaust. The heating apparatus is closed, cooled to a certain temperature to open, close the open side of the operation by an operator or automatically controlled by a manual mechanism to complete in an oven. Car-resistance furnace is the national standard of energy-efficient furnace operation cycle, mainly for high chromium, high manganese steel castings, ductile iron, roller, ball, hammer crusher, wear-resistant liner hardening, annealing, aging well kinds of machinery parts heat treatment heat treatment furnace, furnace, laboratory furnace provided by Longkou Longkou Furnace experiment. Longkou experiment Furnace (www.lk-dianlu.com) strong, credible, in Yantai, Shandong electric equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Longkou laboratory furnace and you hand into the brilliant, for a better future!