Transformer Pressboard Supplied to Algeria

An Algerian customer contacted Chengrui to source transformer pressboard for oil-immersed transformer insulation.

The customer required cellulose-based pressboard that could be used in different transformer insulation positions, including winding spacers, barriers, support parts, oil duct structures and customized pressboard insulation components.

After checking the customer's application and required processing method, Chengrui recommended transformer-grade electrical insulation pressboard with suitable thickness, density and machining support.

This case shows how pressboard transformer insulation is selected for transformer manufacturers, repair workshops and insulation component processors in Algeria.

Customer Background

The customer is involved in transformer manufacturing and transformer insulation component preparation in Algeria.

Their work includes producing and maintaining oil-immersed distribution transformers and related electrical equipment. For this type of project, pressboard is a key solid insulation material because it must provide both electrical insulation and mechanical support inside the transformer.

Before contacting Chengrui, the customer had used pressboard from different supply channels, but they wanted a more stable source from China for transformer pressboard sheets and processed insulation parts.

Their main concerns were practical:

• whether the pressboard was suitable for oil-immersed transformer insulation;

• whether the thickness and density could meet transformer design requirements;

• whether the material could be cut or machined into insulation parts;

• whether Chengrui could support both sheets and customized pressboard components;

• whether packing could protect the material during export shipment to Algeria;

For transformer pressboard manufacturers and suppliers, stable material quality is important. But for the customer, processing support and correct application matching were equally important.

Product Supplied

Transformer pressboard is widely used in oil-immersed transformers because it can work together with transformer oil after drying and oil impregnation.

It is different from ordinary cardboard or industrial paperboard. Transformer pressboard must provide insulation stability, mechanical strength, oil compatibility and dimensional reliability inside the transformer insulation system.

Main Applications in This Project

1. Winding Insulation and Spacers

Pressboard can be cut into spacers and insulation pieces used around transformer winding structures.

These parts help maintain insulation distance, support winding geometry and separate conductive parts according to transformer design.

For this application, the customer needed pressboard with stable thickness and good cutting quality.

2. Pressboard Barriers

Pressboard barriers are used to separate insulation areas inside the transformer and help maintain electrical clearance.

For oil-immersed transformers, the barrier material should be compatible with oil-paper insulation systems after proper drying and impregnation.

The customer considered pressboard sheets for cutting into barriers and local insulation parts.

3. Support Blocks and Insulation Pads

Support blocks and insulation pads are used where the transformer structure requires both insulation and mechanical support.

These components may need cutting, drilling, milling or shaping according to drawings.

Chengrui discussed the customer’s component requirements and recommended pressboard grades suitable for machining and assembly.

4. Pressboard Strips for Oil Duct

Oil duct strips are used to create controlled oil channels inside transformer winding structures.

These strips help maintain spacing and support oil circulation paths.

For this type of part, dimensional accuracy and edge quality are important because the strips must fit the winding structure properly.

Why the Customer Chose Chengrui

The Algerian customer needed more than a basic quotation.

They wanted to confirm whether Chengrui could support real transformer insulation use, including material selection, custom dimensions, sample checking and export packing.

Chengrui supported the project by discussing:

• pressboard thickness;

• sheet size;

• density requirement;

• insulation position;

• whether the customer needed sheets or machined parts;

• cutting and processing possibilities;

• packing for export shipment;

• sample or trial order arrangement.

For customers searching for transformer pressboard manufacturers, this type of technical communication is important. The supplier must understand where the material will be used and how it will be processed.

Result of the Project

After reviewing the product information and sample arrangement, the Algerian customer considered Chengrui’s transformer pressboard suitable for further use in oil-immersed transformer insulation.

The customer was especially interested in the possibility of ordering not only full sheets, but also processed pressboard components according to transformer drawings.

This created a more practical supply model:

pressboard sheets for local cutting;

pressboard strips for winding oil ducts;

spacer blocks for transformer assembly;

customized insulation parts for repair and production;

future discussion for cylinders, angle rings and other components.

For Chengrui, this project was not only a pressboard supply case. It was a transformer insulation solution case for Algeria, connecting material selection, processing support and export supply.

Related Products

Chengrui also supplies related transformer insulation materials and components:

Electrical Insulation Pressboard for Transformer

G4 High Density Transformer Pressboard

Kraft Cable Insulation Paper

Diamond Dotted Paper

Thermally Upgraded Kraft Paper

Laminated Wood Transformer Insulation

These materials can be used together in transformer winding insulation, oil-paper insulation systems, structural insulation and customized transformer insulation components.

FAQ

Q1: Can Chengrui supply transformer pressboard to Algeria?

A: Yes. Chengrui can supply transformer pressboard sheets, cut pieces and customized pressboard insulation components to Algeria according to customer requirements.

Q2: What is pressboard transformer insulation used for?

A: Pressboard transformer insulation is used for spacers, barriers, support blocks, oil duct strips, cylinders, washers, pads and other insulation components inside oil-immersed transformers.

Q3: What should I confirm before buying transformer pressboard?

A: You should confirm thickness, sheet size, density, application position, transformer type, drawing requirement, quantity and packing method.

Q4: Can Chengrui supply machined pressboard components?

A: Yes. Chengrui can discuss cutting, punching, milling and customized pressboard components according to customer drawings.

Conclusion

This Algeria case shows how transformer pressboard can be used for pressboard transformer insulation in oil-immersed transformer manufacturing and repair.

The customer needed a material that could provide electrical insulation, mechanical support and processing flexibility for spacers, barriers, support blocks, oil duct strips and customized pressboard insulation components.

Chengrui supported the project by discussing pressboard thickness, density, application position, cutting requirements, sample checking and export packing.

For Algeria transformer manufacturers, repair workshops and insulation component processors, Chengrui can supply transformer pressboard sheets and processed pressboard insulation parts according to real transformer insulation requirements.