During the forming process of refractory bricks,special shaped brick and checker brick are the most difficult test for operators.As well know in refractory process, press lightly to exhaust then blow heavily is the most basic operation,meanwhile the operator must care of the complex shape to ensure the quality of bricks.PC power press were limited by technology, which were hard to meet the standard of monolithic refractories bricks.and then the synchronous servo NC electric screw press machine were produced by Zhengzhou Haloong Machinery Manufacturing Co., Ltd. Which were simulate human blow process completely,realize 100% qualification rate,which are the best choose for special shaped brick and checker brick.