1)The JKB series vacuum extruder's axles, gear and other important spare parts extend the service life which are made by carbon steel and alloy steel through modulation or quench's heat treatment procession. 2)The blade of the reamer adopt the wear-resistant metallic material coating technology which make its life is 4 times to 7 times longer than the common reamer. 3)The lead has the function of light pressure delivery and high pressure extrusion which make the machine save energy from 15% to 30%. 4)They are applicable for the production of solid bricks and high-rate hollow bricks with the materials of clay,coal gangue, shale, high-volume fly-ash, urban construction waste, gangue waste, inferior soil.