What Our Customers Say About Us

The vibration testing and operating deflection shape analysis that Jake Zwart of Spectrum Technologies performed on our top former has helped us to address the problem in a systematic way and identify the problem.  His knowledge in taking the vibration readings and interpreting the results, combined with his knowledge of the process gave the recommendations for us to take action to correct the problem.

Willie Pruys, AbitibiBowater, Fort Frances      

Paper machine equipment vibration problems can be very complicated to troubleshoot, because the source(s) of the vibration is(are) not always local, but may be generated from process equipment far upstream.  In much the same way that analogue music is recorded in the undulating grooves of an LP record and then reproduced in the amplified signal from a phonograph stylus transducer, minute MD and CD variability in the paper produced on a paper machine can excite sympathetic natural frequencies in downstream equipment.  Jake Zwart’s extensive practical engineering experience with vibration measurement, analysis and paper making technology has combined to make his company “Spectrum Technologies” very effective in troubleshooting and resolving complex paper machine vibration issues to optimize the process.

Doug Offerhaus, Catalyst Paper, Elk Falls

Our stack has had a barring problem for as long as we can remember.  Finally we asked Jake Zwart of Spectrum Technologies to recommend offsets for our stack.  After installing the offsets using these recommendations, we have run our stack under a variety of operating conditions, changing both grade and speed.  The stack has been running very smoothly since that time, without a trace of barring.  We are really satisfied, and when it comes time to change the next stack in this mill, I will be pushing to have Jake calculate offsets for it.

Sylvain Desrochers, AbitibiBowater, Clermont