Bosch launches new KLV series for leak detection of rigid containers

Inspection of up to 600 glass containers per minute using unique group testing; first machine of its kind with process control via reference parts

At Interpack 2017, Bosch Packaging Technology will present the new KLV series for Container Closure Integrity Testing (CCIT), or vacuum leak detection.

“In the pharmaceutical industry, non-destructive CCI technologies are becoming increasingly important,” said product group head Jérôme Freissmuth.

“The smallest leaks can be highly hazardous. The active ingredient could alter, administering the medication could lead to serious side effects as a result of non-sterility, or the medication could become ineffective.”

“Non-destructive integrity testing protects pharmaceutical manufacturers against the loss of valuable medication, since the container remains intact during testing.”

The first in the series, the KLV 1360, has been specially developed for vials. Generally, the platform is suited for all rigid glass containers.

Sensitive testing with high output

A special feature is the combination of testing sensitivity and high output. In vacuum leak detection, negative pressure is created in hermetically sealed chambers. If the container is faulty, the leaking fluid or gas causes the pressure to rise.

The KLV 1360 measures this pressure increase with very high sensitivity. Thanks to state-of-the-art measuring technology, the machine is able to measure leaks equivalent to hole sizes of less than five micrometers.

The KLV 1360 can inspect between 250 and 600 containers per minute. It achieves its maximum performance thanks to special inspection chambers, where the containers can be tested either individually or in groups.

Depending on the body diameter, which can range 8–56mm, the KLV can inspect up to three containers simultaneously in one chamber.

Post-inspection protection

The KLV is the first machine of its kind where the integrated robotic system feeds the containers that require inspection into the process and adds reference samples for internal process control.

In addition, automatic re-inspection makes sure that only containers, which have clearly been tested, leave the machine.

The KLV does not grip the containers from above. Instead, the slightly slanted transport system removes the containers from the inspection chamber sideway, to prevent leaks due to closure gripping.

A star-wheel system ensures gentle transportation through the system.

With a modular construction, the KLV 1360, featuring a turntable fitted as standard, can be integrated into existing lines.


Bosch can be found at Interpack in hall 6, on booth A30-C5.

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