|Solo Systems, Inc.
4001 Industrial Street * Rowlett, TX 75088
800.259.5570 * 972.475.5569
|Often, treat problems may be solved by minor changes in the treating system. Below are
some common problems and their causes. The bullet points show how to fix those
Problem: Inadequate Treat Levels
Cause: Insufficient power for line speed, web width, web material
* Be sure electrode & roll coating are sized to deliver full-rated generator power to
* Increase generator power.
* Slow line speed.
Cause: Power leakage from high voltage lead. Lead too long or too small.
* Shorten lead if possible, increase size of lead wire, insulate lead wire.
Cause: Treater roll ground insufficient.
* Ground treater roll by means of a ground brush, increase ground brush size.
Cause: Electrode area too great or too small to develop full rated generator output on the
* Increase electrode area per recommendations. Contact Solo Systems for help.
Cause: Generator/transformer malfunction, inaccurate settings.
* Troubleshoot generator according to manufacturer's recommendations.
Cause: Inaccurate treat level testing methods.
* Standardize treat test method.
Problem: Back side treat
Cause: Floating web or wrinkled web.
* Increase wrap on treater roll, increase web tension.
* Install lay on nip against treater roll to eliminate trapped air.
* True treater roll.
* Trim edge bead before treating.
Problem: Pinholes in web
Cause: Air gap too wide, power level too high for electrode area, Overtreating.
* Set air gap to .062".
* Change transformer tap to lower voltage.
* Check electrode area vs. power and frequency
Problem: Static charge on treater rolls
Cause: Web slipping on treater rolls.
* Increase line tension if practical.
* Increase wrap on treater rolls.
* Balance treater rolls so they turn freely.
* Check and grease bearings.
Cause: Poor ground path for corona.
* Secure treater rolls grounding system.
Problem: Deposits of corrosive materials on equipment
Cause: Excess slip and other carboneous materials may precipitate out of the web
during the treat process and deposit on the treater rolls, electrodes and cabinet.
* Use minimum amount of slip for required COF.
* Avoid overtreating.
* Clean rolls and electrodes regularly with a good industrial, non-abrasive cleaner.
* Establish regular maintenance schedule.
Problem: Premature roll coating failures
Cause: Mechanical damage from rough handling or knife cuts.
* Review coating characteristics section to determine best coating for installation.
* Review installation and maintenance sections of this website.
Cause: Burned coating from line stopping with power on.
* Install motion detector (zero speed switch) to cut generator power if line stops.
All Solo Systems' stations come with zero speed switches.
Cause: Insufficient treater roll surface area to dissipate heat efficiently. This shortens
insulating life and increases the chance of electrical breakdown.
To increase coating life:
* Install larger diameter roll.
* Cool treater roll during operation.
* Reduce generator power/slow line speed.
* Avoid overtreating. Use the lowest possible power settings to develop the treat
* Avoid treating off edge of the web - use an adjustable length electrode.
Cause: Narrow or electrically mismatched electrode.
* Install shoe electrode matched to generator power.
Cause: Inaccurate air gap setting between electrode and roll surface.
* Set air gap according to recommendations.
|Email Elissa Westerheim for printable PDFs of the following:
* E-3 Epoxy roll coating cleaning procedures
* Epoxy repair instructions
* Checklist for general treater maintenance (A great resource to have on hand for your
* Troubleshooting checklist (Also a great resource to have on hand)
|If you are still
having trouble with
your treater, please
We are happy to
|Copyright 2017 Solo Systems, Inc. All rights reserved.