Endless Felt Tubes & Sealing Rings
for a wide variety of applications
In order to expand and - in the truest sense of the word - round off its product range, in 1995 BWF Protec's Hof production site broadened its production capabilities with a machine for endless needled felt tubes.
Endless tubes and rollers made of needle felt such as BWF EXTRU-LINE® are used e.g. as transport rollers in the aluminium industry, or as filter cartridges for domestic water filters. So-called sealing rings, made of needled felt tubes, are processed in filter bags by BWF Envirotec
Your advantages at a glance:
- The endless production method for our round needled felt rings means they have no weak points, and are very even.
- Our endless needled felt tubes feature a soft surface with high durability and abrasion resistance.
- Operating temperatures up to 550° C
We offer needled felt tubes and rings in the following production range:
| Inner diameter | 19 - 450 mm |
| Wall thickness | 5 - 14 mm |
| Density range | 0.15 - 0.42 g/cm³ |
| Length | up to 2,000 mm |
| Structure/blend |
- pure grade blende |
| Extras |
hardened with resin treatment (on demand) |
Felt Tubes/Rollers
endless needled
As with our yard goods, we process all common synthetic fibres - either pure, as a blend or in sandwich construction.
Advantages of endless needled felt tubes include:
- a soft surface
- high durability
- high abrasion resistance
Application areas for our endless tubes and rollers
- BWF EXTRU-LINE® - Transport rollers for the aluminium and glass industry
- Needle felt filter cartridges for domestic water filters
Sealing Rings
endless needled
Filter bags intended for industrial filtration require sealing materials to ensure a clean seal. As a convenient solution, BWF Protec offers endless needled sealing rings in appropriate dimensions, and with suitable fibre types.
Advantages of endless sealing rings for use in filter bags include:
- no weak points
- highly uniform thickness
