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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

Insulation Presspahn Paper For Transformer02

Insulation Presspahn Paper For Transformer

The insulation pressphan paper is a high-performance insulation material designed specifically for 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 Insulation Press Board | Transformer Pressboard04

Electrical Insulation Press Board | Transformer Pressboard

Insulation pressboard or electrical insulation board or laminated insulation board is a special insu...

Electrical Grade Insulation Crepe Paper For Transformer05

Electrical Grade Insulation Crepe Paper For Transformer

Insulation Crepe Paper is one of electrical insulation paper. It is made of 100% superior sulfate in

6641-F DMD Insulation Paper For Motor Winding06

6641-F DMD Insulation Paper For Motor Winding

DMD Flexible Insulation Paper is with good heat-resistance, widely used in slot liner, etc.

6520/6521 Insulation Paper Wholesale Price07

6520/6521 Insulation Paper Wholesale Price

This NHN insulation paper is a two-ply flexible laminated insulation material consisting of press pa

6640 NMN Insulation Paper Nomex Sheet08

6640 NMN Insulation Paper Nomex Sheet

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

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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