The SF6 recycling service is driven by the trailer. The trailer is provided with the complete set of recycling, repercutors, purification equipment and measuring instruments, driving to unqualified gas cabin, on-site shutdown repair, direct recovery of SF6 gas, recycling is passed Return to the death chamber , short maintenance cycle, users don't got to put any funds to get SF6 gas processing devices, measuring instruments and new gases, on-site service can make the discarded SF6 gas immediately again