SPM condition monitoring for Holmen’s Hallsta PM12
At its Hallsta specialty paper mill in Roslagen, Sweden, Holmen has taken the first step in upgrading the condition monitoring system on PM12 and added just over 100 measuring points for vibration and shock-pulse monitoring in the wire and press sections.
The sections’ mechanical condition will be monitored on-line with the Intellinova Parallel EN system and DuoTech accelerometers from SPM Instrument AB, Sweden. The system has 16 channels for parallel measurement and offers excellent possibilities for measurement configuration thus providing optimal flexibility.
DuoTech is a combination sensor which can be used for both vibration and shock-pulse measurement with the patented HD technologies HD ENV and SPM HD. This combination of measurement technologies lets a single sensor detect different types of machine problems such as bearing and lubrication condition, imbalance, misalignment and loose parts.
Condition monitoring with HD technologies is said to provide exceptional pre-warning times for deteriorating mechanical condition (two to three years is not uncommon) thus optimizing the planning horizon for maintenance. The measurement results are clear and easy to analyze.
The installation, by SPM service engineers and partners, is scheduled for completion by the end of November. SPM trains maintenance staff in the operation of the system in conjunction with commissioning.
Hallsta produces LWU paper and special qualities of wood-containing printing paper on its PM11 and PM12. Production is based exclusively on virgin fiber from spruce pulpwood.
SPM Instrument, www.spminstrument.com