Liquid Fill Solution

W. H. Leary offers the only "Liquid Fill" detection solution that inspects the most important and common defects found when manufacturing a liquid fill carton.


The LS-916 controller integrates seamlessly with the flame seal machine to become the new standard in inspection controllers. The controller has 16 patterns with a large 15" remote color touch screen for easy viewing. Detection accuracy is guaranteed when running speeds of 1,000 m/min (2,300 f/min) because of Leary's patented SureScan™ and GapPro™ technologies.

Jam & Overlap detection is also integral to the system along with multiple rejection options and our patented RejectTrak™ technology.

The expandable LS-916 allows you to add inspection stations in the future as your needs change.

Inspection Options

Each inspection option comes with its own trigger to ensure that each failure or defect is properly identified. Any sensor that detects a failure signals the rejection device.

Hem Cut: Detects if the skiving operation cut through the paper when leaving a void in the hem.

Hem Out: Detects if the hem moved out of position after the hem was folded.

Fitment Cut Out: Detects that the fitment knockout has been removed and is cut in the correct location. Barcode Detection: Monitors every carton for mixed product or barcodes that are not readable.

Double Feed and Gap: The doubles fixture is set to the thickness of one carton and detects the additional thickness of board and will reject or shut down the machine. Ejector: All defective cartons are rejected in the final fold section at speeds up to 1,000MPM. Multiple failure options may be programmed into the system.


LS-916 Liquid Fill Brochure