ZTelec Group – Leading Electrical Insulation Solutions Provider for Motors & Transformers

PRODUCT CATEGORY

Insulation laminated Sheet

Epoxy fiberglass sheet FR4/G10/G11/ 3240/GPO-3/Phenolic sheet/bakelite board

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Insulation laminated Rod

Epoxy Glass Cloth Rod/Phenolic Cotton Cloth Rod/Bakelite Rod/G10 Rod

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Insulation laminated Tube

Epoxy fiberglass tubes/Fiberglass winding tube/Phenolic cotton tube/Phenolic paper tube

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Electrical Insulation Paper

DDP/Insulation paper/Crepe paper/Oil Duct Strip/Transformer Pressboad

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Composite insulation material

DM/DMD/NMN/NHN/AMA/AHA/PET Composite insulation material

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Insulation Components and Kits

Bakelite phenolic parts/Insulating Machined Parts/Insulation Gasket Kit/Laminated wood parts

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About us

ZTelec Group is a comprehensive enterprise specializing in MV&HV electrical equipment and electrical insulation materials. Our insulation materials division—Xujue Electrical,which was established in 1958 and is one of the earliest manufacturers in China dedicated to the research, development, and production of electrical insulation materials. Our products are widely used in transformers, electric motors, new energy systems, and the aerospace industry.

Our products comply with IEC/GB standards and have passed UL certification, SGS, RoHS, REACH and MSDS testing reports.

67 years

67 years of experience in the insulation materials industry

180+ Countries

Exports to over 180 countries

5000+

Over 5,000 partner clients

36 Invention Patents

WHY CHOOSE US

Factory Direct Supply

With 67 years of manufacturing experience,OEM/ODM Services,7-15 day fast delivery

Full Certifications

Our company is certified to ISO 9001, IATF 16949, and EN 45545 standards, ensuring high product quality and compliance

Premium Performance

Equipped with a professional insulation materials research institute, ensuring product quality and reliability.

Trusted After-sales

Backed by an experienced international sales team, we offer full-cycle services to ensure smooth and worry-free cooperation.

Latest news

Apr 20,2026

CWIEME Berlin 2026 Invitation

The CWIEME Berlin will be held from May 19 to May 21, 2026, at the Messe Berlin in Germany. As the world’s largest and most influential exhibition dedicated to coil winding, transformers, electric motors, and electrical insulation materials, CWIEME Berlin brings together leading companies and professionals from across the global electrical manufacturing industry.

Apr 20,2026

Application of Fiberglass Filament Wound Tube End Rings in Dry-Type Transformers

Fiberglass filament wound tube end ring is an insulating structural component manufactured from alkali-free glass fiber and epoxy resin using a filament winding process, then cut into ring or semi-ring shapes according to design requirements.

Pre-impregnated-DMD-for-dry-type-transformer

Apr 20,2026

DMD Insulation Materials for Dry-Type Transformers

In dry-type transformers (especially in Class F 155°C systems), DMD Insulation Material is a highly cost-effective composite insulating material. It consists of a layer of polyester film (M) sandwiched between two layers of polyester fiber non-woven fabric (D) with an adhesive.

Apr 20,2026

G-10 insulation material temperature range and selection guide

Apr 20,2026

G11 Epoxy Sheet Application in Small Wind Turbine Generators

G11 epoxy sheet, a high-performance epoxy glass fiber laminate, has become a preferred insulation solution for small wind turbine generators.

Apr 20,2026

DDP insulation paper for Inter-Layer Insulation in Oil-Immersed Transformers

DDP Paper for Inter-Layer Insulation in Oil-Immersed Transformer Windings

Apr 20,2026

FR4/G10/G11 Fiberglass Sheet Density and Thermal Conductivity

FR4 vs G10 vs G11 epoxy sheet: Density and Thermal Conductivity Comparison Density Comparison (FR4 vs G10 vs G11)

Apr 20,2026

Pressboard Selection for Dry-Type Transformers

Transformer Pressboard is an essential solid insulation material in oil-immersed transformers. Different transformer types vary significantly in voltage level, short-circuit withstand capability, thermal requirements, and mechanical stress. Therefore, the selection of pressboard must be optimized according to the transformer’s structure and operating conditions.