Leader in the insulation material industry

Committed to providing high-quality insulation products and services for various industries such as motors, generators, transformers, electronic products

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Provide you with comprehensive and reliable quality assurance

Certified by German TUV for ISO9001, ISO14001, and IATF16949
Keep improving processing capabilities and increasing production capacity

Professional insulation solutions for New Electric Vehicles

Satisfy the insulation requirements for oil cooling and water cooling for voltages of 400v, 800v, improve motors heat dissipation and stability, and help new electric vehicles drive more reliably, efficiently, and safely

Shortcuts

DRY TYPE TRANSFORMER

OIL IMMERSED TRANSFORMER

NEW ENERGY DRIVE SYSTEM

SMALL LOW-VOLTAGE MOTOR

INDUSTRIAL MOTORS

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Leader in the insulation material industry

Committed to providing high-quality insulation products and services for various industries such as motors, generators, transformers, electronic products

Nomex® Aromatic polyamide insulation products

Soflex®BT24452(F Grade DMD epoxy prepreg fabric)

Mylar® special film/Melinex®

DuPont Kapton®

Deep® Natural Ester Insulating Oil

Product specifications

HOKUETSU TOYO

Toray PPS polyphenylene sulfide film

RELATS Insulating Sleeve

DuPont Emperor Kaladex®

FORMEX

Soflex®TP&TK Composite kraft paper

Soflex®PET-PET( Composite polyester film )

Soflex®NSN Composite insulation paper

Soflex®NMN Insulation paper

Soflex®NKN

Soflex®NHN

Soflex®DMD Insulation paper

Soflex®BT64510 ( Miki Lattice Dispensing Paper )

Our company

Sui On Insulation Materials Co., Ltd. was established in 1986 and is a national high-tech enterprise engaged in the research and development, production, and sales of insulation materials. We are committed to providing high-quality insulation products and services for various industries such as motors, generators, transformers, and electronic products in China. Up to now, Sui On has become one of the largest electrical insulation suppliers in China, providing hundreds of well-known domestic and foreign enterprises.

Tianjin Shanghai QingDao Hong Kong/Shenzhen Thailand

MORE NEWS

Explore our news articles below and join us on this journey of growth and innovation.

01-03

To promote technical exchange, supply-demand matching, and the transformation of innovative achievements among upstream and downstream enterprises in the transformer industry chain, and to support the industry in achieving high-quality development, the "2025 Thailand Transformer Technology and Solutions Seminar" will be held on August 28 in Bangkok, Thailand. This conference is hosted by Tan & Sons Corporation Limited., a company with over 40 years of expertise in distribution and power tran…

Rui’an Insulation cordially invites you to participate in the 2025 Thailand Transformer Technology and Solutions Seminar!

Processing

Strictly implementing the ISO9001, ISO14001, and IATF16949 management system standards, we are committed to providing mature processed materials.

12-07

Cold Stamping Forming

12-07

Hot Forming Processing

12-07

Ultrasonic Welding Processing

12-07

Cutting And Processing Services

12-07

Composite&Glue Processing

Industry Sector

Powering Progress with a Complete Portfolio: From high-voltage generators and energy-efficient dry-type transformers to precision industrial motors and new energy drive systems, we deliver robust, innovative power and motion solutions that drive your productivity forward.