Phenolic paper tubes

Characteristics: The tubes made from cellulose paper as a basis and phenolformaldehyde resin as a binder. This tubes are used like insulating and constructive material for various electrical equipment construction.

The tubes are produced from inside diameter 5,2 mm. The wall thickness is from 2 mm, the tube length is 1050 mm.

Machining: The tubes are machined by cutting, milling, drilling, turning.

Type acc. to EN-60893 Unit PFCP 21PFCP 22
Used name Phenolic paper tube Phenolic paper tube
Type according to DIN 7735 Hp 2065 Hp 2066
Type according to NEMA X    XX
Reinforcement paper paper
Resin phenol phenol
Flexural strength flatwise perpendicular to laminations (at 20°C) MPa 160 150
Tensile strength MPa 155 140
Cohesion of layers MPa 170 200
Dielectric strength perpendicular to layers in oil 90°C kV/mm - 13,3
Breakdown voltage parallel to laminations  kV 29 60
Dissipation factor tg                                       
-    at 50 Hz     -   -
-    at 1 MHz     -   -
Permittivity at 1MHz   - -
Insulation resistance after immersion in water MΩ 2x102 1
Density g/cm3 1,1 - 1,2 1,1 - 1,2
Temperature index (TI)   120 120
Absorbency (for 3 mm thickness) mg/cm3 7,1 7,8
Flammability (category)      -    -
17.6. 2022

COILTECH 2023 - Augsburg

A week after Amper, we exhibited for the first time at the Coiltech fair in Augsburg. Coiltech is the international exhibition for machinery and materials for the production of…
17.6. 2022

AMPER 2023

With the onset of spring, the trade fair season started again, which will be hectic for our company this year as well. We started as usual in Brno with the 29th year of the AMPER…
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