CQJ type accumulator Gas charging tool is a matching product for filling nitrogen into NXQ type accumulators. It can be used for charging, discharging, measuring, and correcting the charging pressure of the accumulators. CQJ type accumulator Gas charging tools are also suitable for applications in the fields of metallurgy, electric power, and other industries that require filling high-pressure gas into high-pressure containers. It can be used not only for charging nitrogen into energy accumulators, but also for charging nitrogen into nitrogen springs. It is suitable for charging nitrogen into energy accumulators, gas springs, pressure storage devices, high-voltage switches, electrical products, injection molds, high-pressure containers, fire-fighting equipment, etc. that require nitrogen charging.