Ultra High-Speed, Sensing Ionizers

SJ-H series

Catalogs View Catalog

Ultra High-Speed, Sensing Ionizers SJ-H series

Removal of Static Electricity from Entire Rooms High-Speed Static Elimination without Air

SJ-H series - Ultra High-Speed, Sensing Ionizers

SJ-H Series is a collection of advanced ultra-high-speed, charge sensing ionizers featuring low maintenance with the highest level of static elimination performance in all environments. While air is commonly used to improve static removal ability, compressed air may cause problems in certain industrial situations. The SJ-H Series achieves the highest level of static elimination in the industry without the use of air. Air-assisted static elimination is also available. Equipped with a function that controls air-flow and ion generation, the SJ-H has achieved top-class low-maintenance in the industry. The smallest-in-class body includes features that support any and all static elimination needs. SJ-H ionizers have a wide range of uses.


  • Static elimination in the coating process of bumpers

  • Static elimination of films

  • Static elimination of slitters

  • Defect prevention of adhesive painting on cardboard



High-Speed Static Elimination without Air

I.R.G. design for optimal ion flow

In conventional models, the ground plate is externally mounted. KEYENCE's SJ-H Series is the first to use I.R.G. (Insert Ring Ground) technology in which the ground plate is housed internally. By directing the generated ions to the target rather than the ground plate, the total number of ions that reach the target increases. This allows for high-speed static elimination that is five times faster than conventional models.

High Usability

The SJ-H Series includes a self-diagnosis function that monitors the ion generation level. With the bar LED and alarm outputs, the ionizer alerts you when maintenance is required.

3-Way Alarm Output

The SJ Series provides the self-diagnosis function that monitors three types of abnormalities. If an abnormality is detected, the LED indicators identify the error condition and an external output is activated. Centralized control of ionizers is enabled by monitoring the external output.

[Cleaning warning]
Monitors reduction in ion generation level due to dirt or wear of the electrode probe.
[Condition warning]
Monitors a high charge level that cannot provide a sufficient static elimination effect.
[Alarm warning]
Monitors abnormal discharge or damage to the ionizer.