The conventional leakage test is to use the random checking methods and put the can into the water for bath leak testing . 

If the tested can is not dried , it may have the risk to make the can rusted. And the random checking can not assure all the can is good or not . 

In order to assure every can to be checked , this positive air tester was designed to test all the cans. 

The feature of this leak tester: 

-Automaticinspectiononline,saved labor for inspection position.

-Automatic can separation system, avoided scratching during inspection process, lowered down rejection rate.

-Dryinspectionwithpressure,prevented cans to get rusty after inspection (if by water);

-Machines can be running stably with long time, 100% full inspection on all products, separate the rejected cans effectively.