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PDF Download, 0,95 MB 0,95 MB Krones Linatronic 735 Modularised bottle inspection in hygienic design

Product safety based on high-precision empty-bottle inspection

Is it possible to make a machine that has an impressive track record even better? The answer is yes. You need to carefully update the technology without affecting the great features that work so well. This is exactly what we have done with the new Linatronic The inspection machine still delivers the same outstanding product safety, hygiene and reliability. But we have made modifications to some of the details in order to increase the effectiveness of the hygienic design, illumination subsystem, etc. The machine now offers that little bit extra from end to end. Does the machine really offer more in every respect? We have to admit that this is not entirely true. When it comes to energy consumption and maintenance effort, the Linatronic now offers less and not more.

Your benefitsOpenClose

  • Modular design

    There is a range of different inspection modules and detection systems available for the Linatronic. Our product specialists can help you decide exactly which options are right for you. Should your inspection requirements change at a later date, the Linatronic can be simply upgraded with additional modules.

  • Large processing spectrum

    The Linatronic can be flexibly adapted to very different con tainer types. This means that both glass and returnable PET bottles can even be handled on the same machine.

  • Protection against operator errors

    Parameters, cameras and belts are automatically adjusted and changed. Thus the Linatronic is perfectly protected against operator errors.

  • Slight wear-related costs

    All modules are equipped with long-lasting LED illumination units.

  • Hygienic design

    To create optimal hygienic conditions, the Linatronic was designed in a completely hygienic manner: it makes do without a table plate and dirt deposits do not stand a chance on its slanted exterior surfaces. Container lubricants, fragments and other types of contamination are removed immediately.

  • Excellent inspection results

    The highly sensitive inspection modules have a 99.9% success rate when it comes to detecting faults and contamination. Simultaneously, they keep the number of faulty rejections down to an absolute minimum. This is made possible by intelligent inspection software; the side-wall inspection system, for example, does not even become confused by water droplets on the bottle. The side-wall and base inspection units can be optionally upgraded with a 1.3 megapixel camera.

  • Quick and simple change-over

    When changing over to other container types, no change parts need to be exchanged. Furthermore, the parameters are changed over and the heights of the camera and of the conveyor belts are adjusted automatically. This allows the entire change-over to be performed in the record time of just two to five minutes.

  • Long-lasting and dirt repellant conveyor belts

    Durability and microbiological safety are the two most important features of the conveyor belts: their enclosed surfaces protect them against traces of wear and prevent them from absorbing lubricants and liquids.

  • Uniform operating concept

    All Krones machines are equipped with a uniform operating concept for maximum user friendliness.

Figures, data, factsOpenClose


Inspection of empty glass and PET containers

Rated output: 72,000 containers per hour
What‘s new? A brief look at the highlights:
  • Enhanced hygienic design:
    • Takes up less space becausethere is no table plate
    • Rugged conveyor belts which repel dirt and moisture
    • Enclosed conveyor belt station
  • Modular camera units which are designed for easy retrofit
  • Long-life LED illumination
  • Auto-adjust feature on conveyor belts and camera units
  • Low-wear, low-maintenance bearing
  • DART (Distributed Architecture forReal Time) inspection software:
    • High-precision inspectionresults
    • Minimal false rejects
    • Easy to operate
  •  Ecopush rejection system:
    • No air consumption
    • Lower space requirements
    • Low noise emissions

01.    Foreign container detection (camera)
02.    Side wall inspection with scuffing detection (camera)
2a.    Additional filters: Detection of foil residue (camera)
03.    Sealing surface inspection (camera)

04.    Base inspection (light field)
4a.    Additional filters: Detection of foil residue and glass fragments
05.    Detection of liquid residue (infrared)
06.    Inspection of inner side wall (camera)

07.     Full thread inspection or detection of chipped base (camera)
08.     Lateral neck finish inspection (camera)
09.     Residual caustic detection (high frequency)
10.     Side wall inspection (camera)
10a.   Additional filters: Detection of foil residue (camera)

Inspection modules in overviewOpenClose

All the inspection modules at a glance

Foreign containers
ACL UV blocker Height detection Colour/contour
Camera Sensor Sensor Camera
Glas Glas Glas
Returnable PET
Returnable PET incl. scuffing
Film detection unit
Sealing surface
Residual liquid
Residual liquid
Film detection
Camera Camera Sensor Sensor Camera
Returnable PET
incl. scuffing
Returnable PET
Returnable PET
Returnable PET
Returnable PET
Inner side-wall
Full thread
Lateral neck finish,
Rust detection
of mineral deposits
Camera Camera Camera Camera
Returnable PET
Returnable PET
Returnable PET

Inspection units 1OpenClose


Foreign container and PET scuffing detection

Foreign container detection units   

There are different systems availablefor sorting out foreign containers:

For detecting the diameter andheight of glass and returnable PETcontainers

CCD camera 
For detecting the contour, diameter, height and colour of glass and retur-nable PET containers; this module also enables the detection of exten-  sive scuffing in returnable PET con-tainers  

For the detection of glass bottles with UV blockers  


Sealing surface inspection

Sealing surface inspection

A CCD camera inspects the neck finish of the container. The Dualflash lighting unit offers even more precision. The newly developed system illuminates the neck finish with two camera images, once from above and once from the side.

Checks the neck finish of glass bottles for

  • Chipping
  • Cracks
  • Wear

Inspects on returnable PET containers

  • The sealing surface for wear and ovality
  • Neck rings for damage and contamination
  • Neck for degree of slanting and deformation

High-frequency residual liquid detection

Residual liquid inspection unit

Residual liquid in the container is detected by two independently operating systems: the high-frequency system which is specialised in detecting caustic residues.

Inspection units 2OpenClose


Infrared residual liquid detection

Residual liquid inspection unit

Residual liquid in the container is detected by two independently operating systems: the infrared system detects all liquids, such as for example, cooking oil. As a team, these two detection systems achieve a maximum degree of safety.


Base inspection

Base inspection

A camera takes an image of the container base, which is evenly illuminated by an LED flash. The high grey-scale resolution guarantees consistently high image quality even in containers with different levels of permeability to light.

In glass bottles, it detects

  • Contamination and damage on the base
  • Foreign objects
  • With an additional filter: film residues and glass splinters in the bottle

In returnable PET containers, it detects

  • Contamination and damage on the base
  • Foreign objects
  • Tension cracks on the base

Inner side-wall inspection

  • Uses a CCD camera to inspect theinside of the container through itsopening
  • Utilises the LED illumination ofthe base inspection unit
  • Detects protruding dirt on theinner side-wall
  • This means that it inspects theinner side-wall precisely, even ifthere is a large-area ACL label onthe container

Inspection units 3OpenClose


Side-wall inspection

Side-wall inspection

The side-walls of returnable PET and glass containers are inspected in two or four modules, each with a CCD camera. An LED light box evenly illuminates the entire bottle height. Using special optical components, each camera produces three images per container. By overlapping the image sections, each millimetre of the bottles is recorded. For gap-free, all-around inspection, the bottles are rotated between the infeed and discharge of the machine.

The modules detect

  • In glass and returnable PET bottles: Wear, dirt, foreign objects and damage
  • In glass containers: Large-area chipping and (with an additional filter) film residues

Lateral neck finish inspection for returnable PET bottles

The side of the neck finish can be inspected with different modules: as a free-standing module in the machine infeed for returnable PET bottles or as a module within the basic machine for bottles sealed with crowns.

Lateral neck finish inspection for returnable PET bottles


Using special optical components, a CCD camera produces images of the bottle neck finish from all sides. This way, the bottle‘s neck area, neck ring, and air vents can be checked for contaminants and damage.

Inspection units 4OpenClose


Lateral neck finish inspection unit

Lateral neck finish inspection

  • Checks the neck finish of bottleswith crowns for contamination,rust deposits, cracks and chipping
  • Illuminates the sealing surfacefrom above using a dome-shapedarray of LEDs
  • Uses a CCD camera and specialoptical components to produce anall-round image of the neck finish

Full thread inspection unit

  • Detects damages to the screw threads of glass containers
  • Illuminates the containers with an LED lamp
  • Uses a CCD camera and special optical components to record an image of the entire screw thread

Chipped container base

Base chipping detection

  • Checks glass bottles for chips on the container base 
  • Illuminates the bottles from below using an LED unit
  • Uses a CCD camera to view the base from below

Safety devices and other additional equipmentOpenClose

Safety devices


  • The machine is stopped if containers which are too high or have fallen down are fed into it
  • Safety switch if containers with a diameter which is too small are fed into the machine
  • Electronic function monitoring of the inspection and lighting units, all P.E. sensor assemblies and all rejection systems
  • Tracking of the container position in the machine according to the fail-safe principle
Additional equipment


  • Special filter for detecting glass splinters and film residues with the base inspection unit
  • Special filter for detecting film residues with the side-wall inspection unit
  • Transponder for the test container program
  • Container pool statistics
  • 1.3 megapixel camera for inspecting the base and side-wall
  • Ejection chute to avoid glass fragments in the bottle
  • Machine network connection and remote visualisation
  • Electronic Bloc connection with the filler

Operation and change-overOpenClose


Remote service

  • An authorised person can dial into the Krones network via Internet/ VPN
  • Monitoring and operation of the inspection unit via remote service, display of all parameters and camera images
  • Optimisation of the inspection units, retrofitting for new container types
  • Quick fault diagnostics
  • Shorter downtimes and fewer on-site service calls thanks to the 24-hour remote service availability
  • Practical training possible via remote service


  • 15-inch pivoting touch-screen
  • Display of all relevant operating data including a rejection trend analysis with display of all camera images
  • Operation and adjustments via individual access levels with userdefined transponders
  • Recording of all relevant operating and production data, e.g. changes to parameters and results of the test container program
  • Saving of all data with time specification and operator names
  • Possibility of transferring defined operating data to an operating data acquisition system (Weihenstephan protocol), to the customer’s network, or to the customer‘ s PC

Test container program and change-overOpenClose


Test container program

  • Semi-automatic function monitoring at regular intervals as well as each time the machine is turned ON and when it is changed over to a new container type
  • A prepared assortment of test containers can be conveyed through the machine in any order
  • Based on the faults on the test container, the individual inspection units are tested for proper functioning
  • Results are saved and displayed
  • The data can be transferred to the Line Management System (LMS), to the operating data acquisition system or to a PC including printer

Fully automatic type change-over

  • Once a new container type has been selected on the touch-screen, the container parameters are changed automatically
  • Automatic adjustment of the cameras and guide belts to new bottle sizes
  • If very small containers are to be handled, the top pair of belts and their guides can be removed quickly and without the need for tools

Simple operation by means of touchscreen

Automatically adjustable guide belts and cameras

System expansions Rejection systemsOpenClose



  • Application: the rejection and distribution of containers
  • Rejection onto parallel conveyors
  • Upright rejection for glass and PET bottles possible
  • Modular design
  • Rejection onto up to five lanes
  • Output: 70,000 containers per hour


  • Application: the rejection and distribution of containers
  • Rejection onto a parallel conveyor, onto a rejection table, or into a collecting tank
  • Compact design
  • Suitable for empty glass containers
  • Cost-efficient system
  • Very low maintenance
  • Savings in energy, no air consumption
  • Low noise level
  • Output: 72,000 containers per hour

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Krones Linatronic 735

Modularised bottle inspection in hygienic design

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Krones AG

Böhmerwaldstraße 5
93073 Neutraubling

t: +49 9401 70-0
f: +49 9401 70-2488

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