Light Tester for Easy Open Ends

ELTP - End Light Tester Package

100% light testing for leaks on easy open ends on the conversion press

  • Reduced spoilage and rejects
  • Beverage and food ends 112 to 603 / 44.5mm - 153mm diameter
  • Other sizes and non round shapes are possible

Highly Sensitive Leak Testing

The package consists of solid state light detection sensors that mount above the discharge conveyor, usually in the first index position after the ends exit the tooling. LED illumination clusters fit beneath the conveyor and are all connected to a multi-lane control unit. The detectors gently ride over each end performing a light leakage check with extreme sensitivity. It is even sensitive enough to detect some indirect light paths. The system will track defective ends to a down-line reject station, where they are removed from the line.

100% Inspection, Maximum Protection

By testing 100% of production on the press, the End Light Tester Package (ELTP) delivers a significant improvement in product quality for a low investment and with minimal disruption. Experience shows that most end defect types are detected, including leakers due to tears or pinholes in the panel, score and chuck wall, as well as split rivets. Clipped curl and compound blob defects can also be detected if they are large enough to affect the light seal around the end.

Installed On Any Press Type

ELTP can normally be installed on any press that makes round food or beverage ends from 112 to 603 / 44.5mm - 153mm in size using belt pocket transfer. Other sizes and non-round shapes can also be considered for installation with specially designed adaptations.

Non-round and Outsize Ends

Systems for non-round and outsize ends are made to customer specifications. Mechanical installation packages are available for most conversion presses. Contact Sencon for further details

Always Test-Ready with 'Flash Control'

The latest models are fitted which a special feature which switches off the lighting arrays if the detectors are flooded with light due to very large holes, or because no end is in the pocket. This allows the detectors to recover in time for reliable testing of the end in the following pocket.

Upgrade Paths

Older versions of ELTP can be upgraded to take advantage of these improvements. Contact Sencon for details.