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Electrical Insulation Materials

Supplying insulation materials for global motor and transformer manufacturers.

Diamond Dotted Paper | DDP Electrical Insulation Paper01

Diamond Dotted Paper | DDP Electrical Insulation Paper

Chengrui Insulation Material supply diamond dotted paper for transformer manufacturers, with common ...

Thermally Upgraded Diamond Dotted Paper  (TU DDP)02

Thermally Upgraded Diamond Dotted Paper (TU DDP)

Thermally Upgraded Diamond Dotted Paper is a 130°C thermal class insulation material for oil-immerse...

Electrical Cable Insulation Kraft Paper Manufacturer03

Electrical Cable Insulation Kraft Paper Manufacturer

Electrical cable insulation paper is manufactured from 100% high-quality sulfate insulating wood pul...

Electrical Insulation Pressboard For Transformer04

Electrical Insulation Pressboard For Transformer

Transformer pressboard for pressboard transformer insulation and transformer insulation pressboard a...

3021 Electrical Phenolic Paper Laminated Sheet05

3021 Electrical Phenolic Paper Laminated Sheet

Electrical grade phenolic paper sheet 3021 a high-performance electrical insulating laminate, also k...

Electrical Grade Insulation Crepe Paper For Transformer06

Electrical Grade Insulation Crepe Paper For Transformer

Electrical insulation crepe paper is mainly used in oil-immersed transformer. Chengrui Insulation su...

6051 Insulating Polyimide Film07

6051 Insulating Polyimide Film

6051 polyimide film or polyimide film sheet is one of the electrical insulation film. It is synthesi...

Densified Laminated Transformer Board Electrical Wood Sheet08

Densified Laminated Transformer Board Electrical Wood Sheet

Chengrui Insulation can provide densified laminated wood boards in standard sizes or process parts(c...

ABOUT US

Chengrui Factory1

About Us | Electrical Insulation Materials Manufacturer & Exporter

Xuchang Chengrui Insulation Material Co., Ltd., founded in 2010, is a manufacturer and exporter of electrical insulation materials for motors, transformers and industrial electrical equipment.

We supply transformer pressboard, diamond dotted paper, insulation kraft paper, crepe paper, thermally upgraded paper, DMD, NMN, NHN, AMA composite paper, insulation films, fiberglass sleeving, insulation tapes, FR4/G10/G11 sheets, laminated wood components and custom insulation parts.

Chengrui supports overseas customers with standard material supply, slitting, cutting, machined parts, technical datasheets, sample testing and export delivery. Our materials are used by motor manufacturers, transformer manufacturers, electrical equipment OEMs, distributors and importers in Southeast Asia, South Asia, the Middle East, South America and other markets.


Our focus is simple: to provide reliable electrical insulation materials and practical insulation solutions for real manufacturing applications.

15+
Years Experience
3000+
Sqm Factory
100+
Export to countries
20000000+
Annual Sales

Certification

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Quick Answersfor You

Quick answers to your pressing questions.

Q: What international certifications does your insulating paper have?

A: Our products comply with IEC standards and can also provide RoHS environmental certification reports upon customer request. All certification certificates are available upon request.

Q: If I cannot provide complete specifications, can you assist with the selection process?

A: That's exactly what we excel at. Our technical sales team has extensive experience. Please provide your application scenario, operating temperature, voltage level, and other requirements, and we will recommend the most cost-effective and efficient insulation material solution for you.

Q: How about MOQ?

A: The standard minimum order quantity(MOQ) is usually 1000kg. For customized products, the specific quantity can be negotiated.

Q: Can you provide samples for testing?

A: Yes. We are happy to provide free samples to potential customers with specific project needs. Please tell us your specific application and testing requirements so that we can recommend the most suitable model and arrange for sample delivery.

Q: Are you a trader or manufacturer?

A: We are a manufacturer of composite insulating papers (such as DMD and NMN) and insulating sleeves, with our own factory and production lines. At the same time, we have established strong strategic partnerships with other material manufacturers, enabling us to act as your one-stop sourcing consultant, efficiently meeting your diverse product needs.

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