Flat crush strength (cores and tubes): Flat crush strength is the load a section of paper tube withstands between two flat plates before it deforms.
In more detail
For cores, radial crush (load around the circumference) is also used. Both indicate how a core will hold under the weight of the wound material.
Why it matters
An under-specified core ovalises or collapses on the shaft; an over-specified one costs more than it needs to.
How it is measured or specified
Tested on a compression tester using a cut length of tube.
Questions
What is Flat crush strength?
Flat crush strength is the load a section of paper tube withstands between two flat plates before it deforms.
Why does Flat crush strength matter to buyers?
An under-specified core ovalises or collapses on the shaft; an over-specified one costs more than it needs to.
Why does Flat crush strength matter?
An under-specified core ovalises or collapses on the shaft; an over-specified one costs more than it needs to.
Explain Flat crush strength in more detail.
For cores, radial crush (load around the circumference) is also used. Both indicate how a core will hold under the weight of the wound material.
How is Flat crush strength measured or specified?
Tested on a compression tester using a cut length of tube.
What is Core inner diameter?
The inner diameter of a paper core or tube, which must match the shaft or chuck it runs on.
What does Bollant Industries make?
Recycled paper and board, industrial paper products such as cores and cones, corrugated and printed packaging, paper tableware, areca and sal leaf tableware, inks, adhesives and laminating films, and a small home and professional care range.
Where is Bollant Industries based?
The head office is in Somajiguda, Hyderabad, and the manufacturing units are in Telangana and Karnataka.