polymer & packaging news agency -

A mold change on processing machines is often accompanied by a change of material while the latter should proceed as quickly, easily and safely as possible. A single mistake here can lead to serious problems, which in most cases are not detected at once and cause high extra costs in terms of many faulty parts.


Monitored CODEMAX coupling stations from WITTMANN is developed to ensure that the implementation and results of material changes come up to a stringent quality standards.


The mechanical design of material distribution systems can vary and may be planned individually. Moreover, these systems can be made from a wide range of different materials, such as entirely from stainless steel, but also from combinations of hardened stainless steel with glass elements.




CODEMAX RFID coupling station from WITTMANN.


WITTMANN dispenses with welding in producing its material distributors. CODEMAX coupling stations offer a pluggable version with sealed pipe clamps, which permits subsequent exchange of pipe elements and the use of wear-resistant parts where necessary.


The special fast camlock couplings for material transport pipes are manufactured exclusively for use on WITTMANN CODEMAX coupling stations. They consist of aluminum and are fully sealed, are produced without sensitive threading, and are mounted on stainless steel pipes.


This is the way to ensure that any individual requirements specified by customers can actually be met, such as “exclusively stainless steel for parts coming into contact with products”. The sturdy design also copes with rough handling of the couplings in operation.



M8 network control.


It happens quite often that material hoses are dropped onto the floor together with the couplings and must still be able to withstand such incidents without any deformations or other kinds of damage. The camlock couplings ensure safe connections without leakages and can be re-plugged quickly nevertheless.


RFID antennas and tags on every coupling make sure that correct connections are established in every case between material feeding pipelines and processing machines. The connections are monitored via the WITTMANN network control for materials handling systems and invariably checked against the input from the system operator.



CODEMAX visualization on the screen.


If a coupling process is triggered on the network control system without operator input, it immediately generates an error signal, and the material transport affected is stopped. This prevents feeding of the wrong material to a processing machine.


The same procedure is followed if a material change has been triggered via the control system, and the wrong material is connected to the coupling station.


Before a coupling process is carried out, the system operator is shown which material hose must be connected to which distributor unit. Both incorrect and open connections are visualized on the control system’s graphic display.


All of this ensures in every single case that the processing machines are always supplied with only the required material, and leakages caused by open connections are eliminated as well.


Mounted inside aluminum housing and over-molded with a shock-absorbing layer of plastic, the RFID antennas are protected against shocks. Existing material distributors can also be retrofitted with RFID antennas, and subsequent extension of monitored coupling stations presents no problems.


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