NMN Composite Insulation Paper Exported to Motor Manufacturer in Brazil

Project Overview

A motor manufacturer in Brazil contacted Chengrui while looking for a reliable supplier of NMN composite insulation paper for use in medium and high-voltage motor production.

The customer supplies electric motors to industrial equipment manufacturers, mining companies and power generation projects throughout South America. As demand for higher-efficiency motors increased, the company required insulation materials capable of meeting Class H insulation system requirements while maintaining stable quality from batch to batch.

Why NMN Composite Insulation Paper?

After reviewing the motor design requirements, NMN composite insulation paper was selected as the preferred solution.

The material combines polyester film with aramid paper, providing excellent mechanical strength, electrical insulation performance and thermal resistance.

For this project, the insulation paper would be used for:

• Slot insulation

• Phase insulation

• Interlayer insulation

• Motor winding protection

The customer required material suitable for Class H (180°C) insulation systems and compatible with their existing production process.

Typical specifications included thicknesses between 0.18 mm and 0.25 mm, supplied in customized slit rolls for workshop use.

Sample Evaluation Before Production

Before placing an order, the customer requested samples for internal testing.

The engineering team evaluated several aspects of the material, including flexibility, edge quality after slitting and handling performance during winding operations.

One concern was whether the material could maintain dimensional stability during processing while remaining easy to insert into motor slots.

After testing, the customer confirmed that the material performed well during assembly and met the required insulation system specifications.

The customized widths also reduced additional cutting work inside the factory.

From Trial Order to Long-Term Cooperation

Following sample approval, the first order was arranged and prepared for export to Brazil.

The NMN composite insulation paper was slit according to the customer's preferred dimensions and packed with moisture-resistant protection before shipment.

Because insulation materials are often stored before use, proper packaging was important to maintain product condition during transportation and warehousing.

The shipment arrived according to the customer's production schedule and was successfully integrated into motor manufacturing operations.

More Than Just One Product

The initial project focused on NMN composite insulation paper, but discussions soon expanded to other motor insulation materials.

As the customer became familiar with Chengrui's product quality and technical support, additional inquiries were received for DMD insulation paper, polyester film and electrical insulation sleeving.

For motor manufacturers, sourcing multiple insulation materials from a single supplier can simplify procurement and reduce communication costs throughout the production cycle.

Project Summary

This project demonstrated how direct cooperation between manufacturers and insulation material suppliers can improve sourcing efficiency while maintaining product quality.

For customers producing industrial motors, stable insulation materials are essential not only for electrical performance but also for manufacturing consistency.

By supplying customized NMN composite insulation paper and responsive technical support, Chengrui helped the customer establish a more reliable insulation material supply chain for future production needs.

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