Caliper Gauge

 

 

3 good reasons to measure the caliper on running forming fabrics or felts:

1. Monitor the condition of the clothing by facts, not by feelings.
2. Determine wear and compaction for a more secure planning of stops.
3. It's easy, quick and reliable!

 

Compare the compaction curves

With every nip pass, a felt's ability to recover from the nip impact decreases. Depending on felt design and press load, the felt becomes increasingly compacted. Establish a typical compaction curve for every felt position; this is your reference. Compare the compaction curve of any (trial) felt with this reference and you know precisely what is going on.

Wear of press felts

For press felts, the wear must be calculated on the basis of caliper and water content. The caliper of a running, saturated felt contains only 2 elements: water and felt material (usually PA). Caliper and water content can be measured; the felt weight is than calculated. Relate this to the original felt weight as stated by the supplier and the felt wear becomes apparent.

The Feltest Caliper Gauge is designed for use in the corrosive environment of paper mills. It withstands spray-water, dust and mechanical shocks. It can be stored without cleaning and is practically maintenance free.

Doing measurements (of any kind) on running paper machines is potentially dangerous and requires alertness, concentration and common sense. The instruments of Feltest Equipment BV are designed and constructed to be as save as possible for their intended use. Nevertheless it is the user's responsibility to actually use the instrument in a safe way. Feltest Equipment bv can not be held responsible or liable in any way for suffered injuries or damages that occurred while using their instruments.