JKB(SJ) model、JKR(SJ) model are advanced twin-stage vacuum Brick Presses. Their main part is welded with extra fine steel. The double grade both are droved by one motor which have features of contact structure, high pressure extrusion, high vacuum, sturdy and durability and easy maintenance but lower energy consumption. They are the perfect equipments for medium size brickfield and small size brickfield Because of only with small investment. They are applicable for all kinds of solid bricks, bearing cork bricks and high-rate hollow bricks with the materials of coal gangue, shale, high-volume fly-ash, urban construction waste, gangue waste, inferior soil.

Model data	Measuring unit	50/50-3.0	45/45-2.0	40/40-2.0	35/35-1.5
Production capability	standard brick packs/h	14000-18000	12000-16000	10000-14000	8000-12000
Reamer diameter	mm	500	450	400	350
Extruding pressure	MPa	≤3.0	≤2.0	≤2.0	≤1.5
Forming liquid water content	%	18～22	18～22	18～22	18～22
Vacuum	MPa	≤-0.092	≤-0.092	≤-0.092	≤-0.092
Power	Kw	132～160/15	90～110/15	75～90/15	55～75/15