Box Anti-explosion Lifting Weight Limiter With Double Girders is applied to various types of anti-explosion bridge and gantry crane, consisting of the explosion proof control box, digital instrument, explosion-proof junction and weighing sensor. It can be matched up with various types of intrinsic safety type weighing sensor. The explosion proof logo is the Exd [ia] ia IICT6, and the explosion- proof standards reached the highest level in the same industry.