Micro Leak Detector for Ends


on- or off-line sample tester for detecting micro leaks in converted ends

Fast , effective, low maintenance and low running costs

MLT is a real time micro leak detector for beverage and food ends (diameter range: 113-502 / 45mm-127mm). Leak rate capability is set by the practial limitations of the process and the working environment to ensure a non-destructive test that minimizes false rejects, and also does not require a wet seal or excessive test pressures that damage the product.

Failure to detect leaks in lids leads to massive re-checking jobs or customer complaint. 100% light testing with Sencon’s on-press End Light Tester Package ELTP will find leaks that have a detectable light path through the fault. But micro leaks and more complex faults – like rivet cracks – may not allow light to pass and will go unnoticed. A further test is needed.

Sencon believe that MLT’s air pressure test achieves the best balance of sampling speed, sensitivity and running costs, offering the most practical and economic solution to detecting micro-leaks in can lids.

Protect yourself from making large amounts of suspect product that must be scrapped or re-tested

Official Sencon Product


  • High Sensitivity
  • High Sampling Rate
  • Low Maintenance, Low Running Costs
  • Class Leading Performance
  • Low False Rejects
  • Intelligent Sampling for Complete Protection
  • Real Leakage Rates Displayed
  • Flexible Installation and Modular Expansion
  • Easy operator training, similar to ELTP

High Sensitivity

The MLT micro leak detector discriminates leakage in 0.01cc ( cm3 ) increments with a sensitivity capability of 0.003 cm3 / sec (maximum sensitivity depends on regular cleaning of seal surfaces).


High Sampling Rate

The online MLT can test 2% of production output with a press speed of 750 ends per minute, per lane.


Low Maintenance, Low Running Costs

Once installed, MLT keeps running reliably. Regular wiping of the test chamber seals being the only maintenance required.


Class Leading Performance

The Sencon MLT micro leak detector offers 10 to 100 times increase in test resolution compared to previous pressure change test systems.


Low False Rejects

All lids rejected by a micro leak detector demand extra attention to confirm the leak and initiate the appropriate action. False rejects therefore waste time through unnecessary investigation. Based on detailed research, Sencon’s MLT micro leak detector is set by default to work at realistic detection thresholds in order to avoid rejecting good product through active monitoring of background noise that allows the system to operate at maximum sensitivity while ensuring minimum false rejects.



Intelligent Sampling for Complete Protection

MLT can automatically adjust its sampling rate to ensure that ends from all belt pocket are being sampled. Sampling from the line at regular, fixed intervals could mean that ends are tested from only one group of belt pockets, as the belt and the sampler fall into synchronization. To avoid this, the on-line MLT has an option called “walk the belt”, which monitors and varies the sampling rate to ensure that lids from every belt pocket are sampled. In this mode, the average sample rate is 15 lids per minute, but overall protection against faulty product is effectively greater.


Real Leakage Rates Displayed

MLT not only indicates traceable micro leaks, the system is configured to display actual leakage rates expressed in cm3 (cc).


Flexible Installation and Modular Expansion

MLT is a modular system, enabling budgeted purchases and fully compatible system expansion. From 1 to 4 heads can be installed to suit different press configurations.


Avoiding False Rejects

Lids rejected by a tester demand extra attention to confirm the leak and initiate the appropriate action. False rejects waste time through unnecessary investigation. Based on detailed research, MLT is set to work by default at realistic detection thresholds that avoid rejecting good product.




Romà Piera i Arcal, 8
08330 Premià de Mar (Barcelona)
Main Multilanguage Tel:
+34 937 549 526
Alternative Direct Tel:
Français: +33 1 76 64 12 87
English: +44 1905 887845
Fax: +34 937 549 687

Hong Kong
11th Floor Dah Sing Life Building
99 Des Voeux Road Central
Hong Kong
Tel: +852 2127 0699

808 Citystate Centre Building
709 Shaw Boulevard
1600 Pasig City
Tel: +63 2 696 6965
Fax: +63 2 696 6159

United States 
7691 N.Overland Trail
80524 Fort Collins
Tel: +1 970 305 8721