Updated Aug 22, 2026 · Public platform & industry data

Aug 22, 2026 Updated

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2026 Top 10 Insulating Sleeve Manufacturers in China Zhejiang

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Top-rated Insulating Sleeve suppliers, How to choose a Insulating Sleeve manufacturer, Best Insulating Sleeve companies in China

The top 10 Insulating Sleeve manufacturers in Zhejiang for 2026 are: Yueqing LeBian New Materials Co., Ltd, Zhejiang Mingli Electric Co., Ltd, Minsai Electric Group Co., Ltd, Yueqing Wanning Electric Power Equipment Co., Ltd, Yueqing Jinlei Electric Co., Ltd, Yueqing Aineng Electric Co., Ltd, Zhejiang Leiyi Electric Co., Ltd, Zhejiang Ronggu Electric Power Technology Co., Ltd, Zhejiang Chaotai Complete Equipment Co., Ltd, Zhejiang Huaju Plastic Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Yueqing LeBian New Materials Co., Ltd
Overall Score4.9 / 5
Est. Date2008-01-21
Registered Capital30800K CNY

Yueqing LeBian New Materials Co., Ltd., registered in Zhangnan Village, Yanpen Street, Yueqing City, Wenzhou City, Zhejiang Province, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Zhang Guosheng, operates in the sales of heat shrink materials, cold shrink materials, and chemical products (excluding dangerous goods); Processing and sales of cable accessories, plastic parts, and electrical accessories. (For licensed production and operation, valid certificates are required for production and operation). Core products: Insulating Sleeve, Protective Case, Cable Branch Insulation Tool

Top 2
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Zhejiang Mingli Electric Co., Ltd
Overall Score4.7 / 5
Est. Date2017-07-07
Registered Capital10000K CNY

Zhejiang Mingli Electric Co., Ltd., with its registered address in Xiamen Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, is registered with the Yueqing Market Supervision and Administration Bureau. The legal representative is Zhao Yong, and the business scope includes the production, processing, and sales of complete sets of electrical equipment and accessories, industrial automation equipment, electromechanical equipment, electrical products, electronic products, wire and cable accessories, instruments and meters, rubber products, photovoltaic power generation equipment, and power tools manufacturing, processing, and sales; Hardware and electrical sales. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Insulating Sleeve, High Voltage Ceramic Wall Bushing, Vacuum Circuit Breaker

Top 3
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Minsai Electric Group Co., Ltd
Overall Score4.7 / 5
Est. Date2017-07-20
Registered Capital50000K CNY

Minsai Electric Group Co., Ltd., registered at Xiangyang Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province (within Zhejiang Rio Tinto New Electric Co., Ltd.), registered with the Yueqing Market Supervision Administration, with Shen Guidong as the legal representative. Its business scope includes general projects such as manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Research and development of distribution switch control equipment; Manufacturing of power transmission, distribution and control equipment; Sales of intelligent power transmission and distribution and control equipment; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Manufacturing of power electronic components; Sales of power electronic components; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Rubber product manufacturing; Sales of rubber products; Sales of electrical accessories; Sales of electrical equipment; Internet sales (except for the sale of goods that need to be licensed); Wind power generation technology services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Technology import and export; Import and export of goods (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Licensed project: Electrical installation services (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results).. Core products: Insulating Sleeve, , High-Voltage Switchgear

TOP4
Yueqing Wanning Electric Power Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2014-06-18
Registered Capital51000K CNY

Yueqing Wanning Electric Power Equipment Co., Ltd., with its registered address at 1st Floor, Building 2, No. 555 Chezhan Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, is registered with the Yueqing Market Supervision Administration Bureau and represented by Yin Guiyuan. Its business scope includes the manufacturing, processing, and sales of distribution switch control equipment, power equipment, high and low voltage electrical complete sets and accessories, transformers, wires and cables, instruments and meters (excluding measuring instruments), power fittings, and cable accessories; Import and export of goods and technology.. Core products: Insulating Sleeve, Inspection Box, Photovoltaic Grid-Connected Box

TOP5
Yueqing Jinlei Electric Co., Ltd
Overall Score4.6 / 5
Est. Date2023-05-06
Registered Capital500K CNY

Yueqing Jinlei Electric Co., Ltd., with its registered address in Shahou Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, is registered with the Yueqing Market Supervision and Administration Bureau and represented by Zhao Jing as its legal representative. Its business scope includes general projects such as manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Research and development of distribution switch control equipment; Manufacturing of electronic components; Retail of electronic components; Manufacturing of power electronic components; Sales of power electronic components; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Manufacturing of metal chains and other metal products; Sales of metal chains and other metal products; Manufacturing of hardware products; Wholesale of hardware products; Retail of hardware products; Manufacturing of electrical equipment; Sales of electrical equipment; Manufacturing of electrical accessories; Sales of electrical accessories; Manufacturing of plastic products; Sales of plastic products; Sales of intelligent power transmission and distribution and control equipment; Manufacturing of power transmission, distribution and control equipment; Rubber product manufacturing; Sales of rubber products; Operation of wires and cables; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of pneumatic power machinery and components; Sales of pneumatic power machinery and components; Sales of valves and plugs; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Manufacturing of lighting fixtures; Sales of lighting fixtures; Manufacturing of automotive parts and accessories; Wholesale of automotive spare parts; Retail of automotive spare parts; Manufacturing of transformers, rectifiers, and inductors (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law).. Core products: Insulating Sleeve, Dtl-2 Square Aluminum Alloy Wire Nose, Heat Shrink Tubing

TOP6
Yueqing Aineng Electric Co., Ltd
Overall Score4.5 / 5
Est. Date2016-05-24
Registered Capital500K CNY

Yueqing Aineng Electric Co., Ltd., registered in Qianximen Village, Wengyang Street, Yueqing City, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Lin Xiaozhen, engages in the sales of household appliances, emergency lighting equipment, electronic energy-saving products, electrical complete sets of equipment, mechanical equipment, instruments and meters, computers and accessories, hardware and electrical equipment, electromechanical equipment, high and low voltage electrical appliances and accessories, communication equipment, plastic parts, steel nails, wire clips, wire caps, winding pipes, cable joints, positioning pieces, wiring terminals, insulation parts, nylon zip ties, and cold pressed end pieces; Import and export of goods and technology.. Core products: Insulating Sleeve, Terminal Block, Edge Buckle Fixed Zip Tie

TOP7
Zhejiang Leiyi Electric Co., Ltd
Overall Score4.5 / 5
Est. Date2011-03-31
Registered Capital30088K CNY

Zhejiang Leiyi Electric Co., Ltd., with its registered address at No. 19 Kesi Road, Xiangyang Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, is registered with the Yueqing Market Supervision and Administration Bureau. The legal representative is Liu Jianchang, and its business scope includes research and development, manufacturing, processing, and sales of distribution switch control equipment, power fittings, power sheaths, insulators, lightning arresters, overvoltage protectors, drop out fuses, isolating switches, vacuum circuit breakers, electrical equipment, electrical accessories, electronic components, and cable accessories; Import and export of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Insulating Sleeve, High Voltage Vacuum Circuit Breaker, Other Series

TOP8
Zhejiang Ronggu Electric Power Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2019-11-25
Registered Capital10000K CNY

Zhejiang Ronggu Electric Power Technology Co., Ltd., registered in Huangyu Village, Liushi Town, Yueqing City, Zhejiang Province, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Yin Le, engages in the research and development, manufacturing, processing, and sales of power equipment, distribution switch control equipment, high and low voltage electrical complete sets and accessories, transformers, wires and cables, instruments and meters (excluding measuring instruments), power fittings, and cable accessories; Import and export of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Insulating Sleeve, Grounding Box, Grid-Connected Cabinet

TOP9
Zhejiang Chaotai Complete Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2021-11-15
Registered Capital10000K CNY

Zhejiang Chaotai Complete Equipment Co., Ltd., with its registered address in Lilong Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, is registered with the Yueqing Market Supervision Administration. The legal representative is Xiong Jiaping, and its business scope includes general projects such as manufacturing of distribution switch control equipment; Research and development of distribution switch control equipment; Sales of distribution switch control equipment; Sales of capacitors and their supporting equipment; Manufacturing of electronic components; Wholesale of electronic components; Electronic product sales; Manufacturing of instruments and meters; Sales of electrical instruments and meters; Sales of instruments and meters; Manufacturing of electrical instruments and meters; Manufacturing of hardware products; Retail of hardware products; Sales of intelligent power transmission and distribution and control equipment; Operation of wires and cables; Manufacturing of power facilities and equipment; Retail of electronic components; Manufacturing of transformers, rectifiers, and inductors (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law).. Core products: Insulating Sleeve, Vacuum Circuit Breaker, Low-Voltage Drawer Cabinet

TOP10
Zhejiang Huaju Plastic Co., Ltd
Overall Score4.3 / 5
Est. Date2016-04-25
Registered Capital10000K CNY

Zhejiang Huaju Plastic Co., Ltd., with its registered address located in Shangyanhou Village, Taiwan Business Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province (within Torch Electric Group Co., Ltd.), is registered with the Yueqing Market Supervision Administration and represented by Zhu Xuwei. Its business scope includes general projects such as plastic product manufacturing; Sales of plastic products; Sales of electrical accessories; Manufacturing of electrical accessories; Sales of metal products; Manufacturing of metal materials; Sales of distribution switch control equipment; Manufacturing of distribution switch control equipment; Manufacturing of power electronic components; Sales of power electronic components; Import and export of goods; Technology import and export (except for projects that require approval according to law, business activities are carried out independently based on the business license in accordance with the law).. Core products: Insulating Sleeve, Fixed Seat, Cable Tie

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Yueqing LeBian New Materials Co., Ltd2008-01-21Insulating Sleeve, Protective Case, Cable Branch Insulation Tool30800K CNYNot Supported
Zhejiang Mingli Electric Co., Ltd2017-07-07Insulating Sleeve, High Voltage Ceramic Wall Bushing, Vacuum Circuit Breaker10000K CNYNot Supported
Minsai Electric Group Co., Ltd2017-07-20Insulating Sleeve, , High-Voltage Switchgear50000K CNYSupported
Yueqing Wanning Electric Power Equipment Co., Ltd2014-06-18Insulating Sleeve, Inspection Box, Photovoltaic Grid-Connected Box51000K CNYNot Supported
Yueqing Jinlei Electric Co., Ltd2023-05-06Insulating Sleeve, Dtl-2 Square Aluminum Alloy Wire Nose, Heat Shrink Tubing500K CNYSupported
Yueqing Aineng Electric Co., Ltd2016-05-24Insulating Sleeve, Terminal Block, Edge Buckle Fixed Zip Tie500K CNYNot Supported
Zhejiang Leiyi Electric Co., Ltd2011-03-31Insulating Sleeve, High Voltage Vacuum Circuit Breaker, Other Series30088K CNYNot Supported
Zhejiang Ronggu Electric Power Technology Co., Ltd2019-11-25Insulating Sleeve, Grounding Box, Grid-Connected Cabinet10000K CNYNot Supported
Zhejiang Chaotai Complete Equipment Co., Ltd2021-11-15Insulating Sleeve, Vacuum Circuit Breaker, Low-Voltage Drawer Cabinet10000K CNYNot Supported
Zhejiang Huaju Plastic Co., Ltd2016-04-25Insulating Sleeve, Fixed Seat, Cable Tie10000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of insulation sleeves, it is recommended to prioritize checking key technical parameters such as voltage level, temperature resistance range, and dimensional tolerances to ensure compatibility with equipment interfaces or operating conditions. For example, high-voltage power equipment should use thickened sleeves that meet the withstand voltage standards.
  • Insulation sleeves are widely used in substation maintenance, electrical equipment assembly, and other scenarios. When purchasing, different materials (such as silicone rubber or epoxy resin) can be selected based on specific scenario requirements to balance insulation performance and mechanical strength.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers can usually provide more stable batch supply capabilities.
  • If purchasing insulation sleeves for long-term outdoor exposure environments, additional attention should be paid to the product's UV resistance and moisture resistance parameters. At the same time, it is recommended to choose suppliers with many successful cases in the power industry to reduce adaptation risks.

Knowledge Base

Q

This article provides an in-depth analysis of the multiple functions of insulation sleeves in electrical equipment and industrial applications, including isolation protection, safety enhancement, and structural optimization, to help readers fully understand the practical value of this key component.

Q

According to the driving mode, it can be divided into manual insulated ratchet socket wrench and electric insulated ratchet socket wrench; According to the specifications of the sleeve, there are two types: imperial and metric, which are suitable for nuts and bolts of different sizes; Divided by insulation level, common ones include 10kV, 35kV, etc., which are suitable for live working scenarios with corresponding voltage levels.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs