... with shale, fly ash or clay as raw material Specifications:1. Box feeder Model XGD80Manufacturing capacity(m3/h)10 ... JKR Vacuum series can produce both hollow clay bricks and solid clay bricks.Brick extruder, JK Vacuum seriesItemJK30JK35JK40JK45JK50Capacity ... : JK Vacuum series can produce both hollow clay bricks and solid clay bricks. Brick extruder, JZ seriesItemJZ280JZ300JZ350JZ400Capacity per hour ...