High Quality Electrical Insulation Corrugated Paper Tube for oil Transformer

Product features
The product is made of corrugated insulating paper processed by special technology. It is mainly used as insulation wrapping material for oil immersed transformer wire. It has advantage of reliable flexibility, any direction bending without cracking, excellent insulation performance, automatic equipment production, high precision and fast efficiency. We accept customization.
Description :

Composition: Crepe tubes made from 100% electrical kraft paper 100% using non ionized water during crepe process to maintain electric properties. Special adhesive is used which it has a good resistance to oil transformer.
 Properties: High flexibility. High turn capability.
No stress when tube is stretched.
No contamination of oil transformer is guaranteed.

Advantage:
We can offer 1.8m and 2.0m length of this product, which overcame the inconsistency in diameter and easy wrinkling caused by over-length,  we can provide crepe paper tubes with various specifications from 4mm inner diameter.
Our crepe paper tubes made by fully-automatic machine, it can never be achieved by manual and semi-automatic machines. With the same inner and outer diameters, and according to transformer design principle, more turns creates higher insulativity and tighter winding which contributes to higher elasticity, flexibility, and stronger resistance to bending. So it is possible to product crepe paper tube with the same specification and the same size. The quality of the finished crepe paper tube made by manual weighs only about half the weight of that made fully-automatically because of small volumes of loose layers and the flexibility and intensity is very low.
1. Inherent dielectric strength:
Crumpled paper tube has high dielectric strength, which means that it can maintain stable insulation properties in the electric field, effectively preventing current leakage and short-circuit phenomena.
2.Thermal stability:
The product is able to maintain stable performance in a certain high temperature environment, not easy to occur thermal deformation or thermal aging, to ensure long-term reliable use in electrical equipment.
3. Mechanical toughness:
Wrinkled paper tube has good mechanical toughness, can withstand certain mechanical stress and impact, to protect the internal wires or components from external damage.
4.Chemical compatibility:
It has good compatibility with many kinds of chemical substances and is not easy to be corroded or dissolved, ensuring stability and durability in complex environments.
5. Insensitivity to moisture:
Wrinkled paper tube has a certain resistance to humid environments, and is not easy to absorb moisture and lead to performance degradation or failure.
6. Radiation resistance:
In some special applications, crumpled paper tube also shows good radiation resistance, can maintain a stable insulation effect in the radiation environment.
7. Non-toxic, flame-resistant:
The product is non-toxic and harmless, in line with environmental requirements; at the same time, it has good flame resistance, which can prevent the spread of fire to a certain extent and improve the safety of equipment.
8. good flexibility:
Wrinkled paper tube has reliable flexibility and can be bent in any direction without breaking, which is very suitable for insulating structures that need to be bent or deformed.
9. Highly customizable:
Crumpled paper tubes can be customized and manufactured according to customer needs, including different specifications, sizes and performance requirements to meet the needs of different application scenarios.
Avalaibility:
Standard crepe tube dimension:
– Inside diameter: since 3mm to 50 mm
– Thickness wall : since 0.8mm to 3,0mm
– Nominal Length: 1800mm, 2000mm,1000 mm as standard
Other type can be delivered under special order，such as below:

Inner / outer diameter and can produce other specification as per client request.

4*6mm,4*8mm,6*9mm,7*8mm,7*9mm,7*10mm,8*10mm,10*12mm,11*12mm,11*13mm,11*14mm,12*16mm,13*14mm,13*16mm,14*16mm,14*17mm,16*19mm,18*21mm,20*25mm,34*38mm,46*50mm,68*72mm,etc.

Product introduction
Insulating crumpled paper is a kind of paper with insulating properties made from unbleached sulfate coniferous wood pulp as raw material, after free pulping, without glue and filler, and crumpling process on long net paper machine. It is often referred to as “transformer crepe paper” and “transformer crepe paper”, because of its excellent insulating properties and physical properties and is widely used in transformers, transformers, reactors and other electrical equipment insulation parts.
Insulating crepe paper plays an important role in the manufacture and use of electrical equipment. It can not only provide stable insulation effect to prevent current leakage and short-circuit phenomenon, but also improve the operational stability and safety of the equipment. At the same time, its good physical properties and chemical stability also make the insulation wrinkle paper in a variety of harsh environments can maintain stable performance, to extend the service life of the equipment.
In terms of specifications and sizes, the original thickness of insulating crepe paper can be divided into different specifications such as 0.05mm, 0.075mm, 0.08mm, 0.13mm, etc., and there are various options for the thickness and effective width after creasing. These choices of specifications and sizes can be customized and processed according to actual needs to meet the demands of different application scenarios.
Overall, insulating crumpled paper is a kind of insulating material with excellent performance and wide application, which plays an important role in the manufacture and use of electrical equipment.

Crepe Paper Tube Key Features

Type: Insulation Paper, Insulation Materials
Property: Dielectric Capability
Application:High Temperature, High Voltage
Pipe diameters:4*8*1000/8*14*1000/10*20*1000 (The product’s diameter are negotiable)
Insulation class A (105 °C).
Direction of crepe paper is transversal.
The end of the last layer is bonded only.
Excellent compatibility with insulating liquids.
Crepe Paper Tube Technical Parameter：

Note:The data in the above table only represents typical or average data, just for reference in practical application.

Crepe paper pipe application:

Crepe paper pipe is mainly used for the insulation of wires in oil-type transformer.
 

Crepe paper tube is made in a rolled process with electrical crepe paper and mainly used in oil-immersed transformer as insulation wrapping.

low tap and screw external insulation crepe paper soft casing, has reliable flexibility, arbitrary direction bending without fracture of merit.

 

Crepe paper pipe FAQ:

Q: Can you send crepe paper pipe samples for testing?

500g Samples are free supplied, but express freight should be taken by client. After making order, we’ll to return freight back.

Q: Which packaging do you use?

Packaging is important part to avoid goods breaking in transportation. We will choose suitable packing depend on materials.

Q: When customer respond quality issues after pick up goods, how to deal with?

1) Customer could supply photos of issued goods for our sales staff and then we’ll verify which part is wrong.

2) If the issue is confirmed, company will negotiate with customers and compensate in coming orders.

Q: How can you guarantee the quality of mass goods is same as the sample sent to me before?

We kept another same sample and marked on company when we sent to customer. So our production will be based on the same sample.

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