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HOT PRODUCTS

Provide high-quality and durable insulation materials for different industries worldwide

Diamond Dotted Paper | DDP Electrical Insulation Paper01

Diamond Dotted Paper | DDP Electrical Insulation Paper

Diamond dotted insulation paper or epoxy diamond dotted paper is made of electrical insulating paper

6641-F DMD Insulation Paper For Motor Winding02

6641-F DMD Insulation Paper For Motor Winding

6641-F DMD Insulation Paper is a high-grade polyester film and non-woven fabric composite material d...

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 Barley Insulation Paper( Fish Paper)04

Electrical Barley Insulation Paper( Fish Paper)

The composite insulation barley paper (fish paper with film) is a two-layer composite material, pres...

Electrical Insulation Press Board | Transformer Pressboard05

Electrical Insulation Press Board | Transformer Pressboard

High-quality electrical insulation pressboard for transformers, Excellent mechanical strength, oil r...

6640 NMN Insulation Paper Nomex Paper06

6640 NMN Insulation Paper Nomex Paper

The nomex 6640 NMN insulation paper is a three-ply laminate with polyester film between two layers o...

Prepreg DMD Composite Insulation Paper07

Prepreg DMD Composite Insulation Paper

Prepreg DMD: Custom high-performance electrical insulation material for motors, transformers & c...

Electrical Grade Insulation Crepe Paper For Transformer08

Electrical Grade Insulation Crepe Paper For Transformer

Insulation Crepe Paper is made of 100% superior sulfate insulating wood pulp, featured with good die...

ABOUT US

Chengrui Factory1

Reliable Electrical Insulating Materials Manufacturer.

Xuchang Chengrui Insulation Material Co., Ltd. is a leading manufacturer of electrical insulation solutions for global motors, transformers, and drive systems. With a comprehensive product line including composite papers (DMD, NMN), insulation films and sleevings, we deliver reliability and performance. All products comply with IEC standards and are UL certified, guaranteed by strict quality control from raw materials to finished goods. We offer flexible customization to meet specific design requirements.

Trusted by clients in over 100 countries, including Russia, Italy, Belgium, Malaysia, Indonesia, and Bangladesh, we are your proven partner for insulation materials. Contact us to enhance your projects with our expertise.



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

Certification

Certificate
Certificate
Certificate
Certificate
Certificate
Certificate

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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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