Wenzhou Jisheng Insulation Materials Co., Ltd. was established in 2021 and is located in the Economic Development Zone of Yueqing City, Wenzhou, Zhejiang Province. The company specializes in the R&D and production of electrical insulation materials and was recognized as a "Technology-based SME in Zhejiang Province" in 2023.
The company's manufacturing facility covers an area of 2,000 square meters and is equipped with advanced production machinery:
1 High-Performance 3-in-1 Composite Machine for Insulation Materials
2 Bonding Machines for Flexible Polymer Materials
4 High-Precision Slitting Machines
With an annual production capacity of 2,000 tons for various insulation materials, we are able to customize flexible composite materials according to client specifications-including special thicknesses, unique structural configurations, or different delivery formats (rolls, sheets, strips, or molded parts).
Our Product
Our company specializes in the R&D and manufacturing of various flexible composite insulation paper materials classified as Class E, B, F, and H (with thermal ratings ranging from 105°C to 220°C). Our core product portfolio includes: Diamond-Dotted Insulation Paper, DMD Insulation Paper, DMD Prepregs, Composite Motor Films, and Composite Aramid Paper (representing high-end domestic insulation materials).
Product Specifications:
Maximum Finished Width: 1600 mm
Thickness Range: 0.05 – 1.2 mm
Product Application
Our products are widely applied in:
Medium- and High-Voltage Transformers, Ultra-High-Voltage Transformers
Instrument Transformers, Capacitors, Reactors
Electric Motors, New Energy Vehicle Motors, Special-Purpose Motors
And other electrical equipment requiring enhanced insulation efficiency and safety.
Production Equipment
Main Production Equipment: 3-in-1 Laminating Machine (Max. Laminating Width: 1600 mm), Polymer Flexible Material Bonding Machine, 4 High-Precision Slitting Machines (Max. Slitting Width: 1600 mm), Stamping and Forming Machine.
Key Testing Equipment: Tensile Strength Tester, Breakdown Voltage Tester, Glow-Wire Tester, Electric Blast Drying Oven.
Our Certificate
Certified under the ISO 9001 Quality Management System.
Our products have undergone testing by authoritative agencies; the test reports for our AMA dotted paper, diamond-dotted paper, DMD, DMD prepreg, composite laminates, and other materials all meet national standards.
Production Market
Our products are sold to both domestic and international markets, serving transformer manufacturers across regions such as South America, Southeast Asia, the Middle East, Central Asia, and Africa. Our domestic client base includes prominent companies such as Delixi Electric, Tianzheng Electric, Chint Electric, and Andeli Electric.
Leveraging the geographical advantages of Wenzhou, we provide prompt delivery, technical support, and after-sales service. With customer satisfaction as our primary objective, we offer comprehensive material solutions centered on insulation systems, enabling a seamless one-stop procurement experience.
Additionally, the company offers contract processing services for the premium domestic insulating material Metastar™ aramid paper, and independently manufactures a full range of flexible insulating composite materials, spanning Class A through Class C.