NSL series dry sand building is a station-type making system with a designed theoretical production capacity of 100 ~ 300t/h. The system has various technical advantages, including available for hard and soft material, the content of needle - flake particles less than 8% with grain grading, controllable 5~15% of medium sand, stone powder content in Zone 2, fineness modulus 2.3~3.0 online control. System The PLC intelligent control can save labor costs through the "cloud platform" to achieve remote fault diagnosis and monitoring.