Box beam roll forming machine productive process mainly includes: decoiling→ leveling→ roll forming→ shape fixing→ welding→cutting→ output. The whole line can achieve a variety of functions by online operation with one person; Product precision is high, appearance quality is good, equipment performance is stable. Box beam roll forming machine is used for manufacturing the box beam which shall be installed on the side of the rack so that usually rack roll forming machine will coordinate with rack roll forming machine during the production. The box beam can share the load-bearing with the stand upright of the rack and satisfy various carriage requirement. It is widely used in storage and logistics shelf systempallet rack, cantilever rack, mobile rack and so on.