selectioned types of supports (pure cellulose kraft paper, cotton fabric, glass fabric and glass matterial ,phenolic paper PFCP ,phenolic paper,PHENOLIC LAMINATED PAPER BASE ) which are impregnated with various types of resins (phenolic, epoxy, melamine, silicone and polyester), obtaining pre-preg products, and utilising modern facilities, manufactures a wide range of laminates and tubes and rings for direct selling to its customers.it has superior high temperature, high dielectric and good mechanical qualities. Precision Paper Tube Company has developed a method of fabricating square, round, or rectangular tubing of this material using a special, compatible binder that provides a laminated, thermally stable, Class "H" insulating tubing.
Besides that, through the cooperation with third companies equipped on purpose in this field, can supply any type of CNC machined parts also with metallic inserts.

Advantages: Its is recognized for its excellent electrical, thermal and mechanical properties. Precision has developed a method of fabricating this tubing using a compatible binder that provides a laminated, thermally stable, Class "H" insulating tubing that can be used in flame retardant applications.

Suggested Uses: Transformer forms and collar supports; voltage regulator transformers; primary coil forms; as bobbins in high temperature, continuous run motors; motor shaft insulators and spacers for industrial type, heavy duty tools; high temperature potting cases; heat insulators and shields; flame proofing applications.

Minimum Wall Thickness:>1.4mm

3650 Polyamide glass cloth laminated tube:

It is created from KH550 glass cloth with alkali-free that has been impregnated with polyamide resin under pressure. heat and rolling. The thermal grade is class h insulation. With excellent electrical. Physical and mechanical property, thermal-resistant, radiation-proof. Used for the insulating slots. windings. gaskets of the dry-type transformer /mine transformer/ railway transformer/traction motor/areomotor/electrical equipment etc.

Wall thickness:?1.5-200mm; ?Diameter: φ 6-2000mm

1. density g/cm2 ≥1.65

2. flexural strength Mpa ≥ 200

3. compressive strength Mpa ≥ 80

4. shearing strength Mpa ≥ 20

5. 1.5mm 14

Electrical strength perpendicular 20.mm KV 16

To lamination, in transformer oil

At room temperature(5 min)/ 2.5mm 18

Thickness of wall 3.0mm 20

6. Electrical strength parallel to lamination, in KV 30

transformer oil at room temperature(5 min)

7. Surface electrical strength after wet at KV 14

room temperature(1 min)