What certifications does this product have?

This product is ISO9001 certified, ensuring quality for high voltage power transmission.

What is the cantilever strength of the insulator?

The cantilever strength is 12.5 kN across the ANSI 57-1L to 57-5S series.

Is a free sample available?

Yes, free samples are available for professional porcelain insulator suppliers and buyers.

ANSI 57-4s Series Porcelain Line Post Insulator

Name: ANSI 57-4s Series Porcelain Line Post Insulator
Brand: Liling Sky Bali Industrial Co., Ltd.
SKU: 849605345

Hunan, ChinaLiling Sky Bali Industrial Co., Ltd.

US$25.00

500 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Application

High-voltage

Material

Porcelain

Model NO.

ANSI 57-4s Series Porcelain insulator

Structure

Pin Insulator

Type

Pin Type

Usage

High Voltage Power Transmission, Insulation, Electrical Installation

Connection Method

Trough Type

Size of Bearing Capacity

Customer Specified

Certification

ISO9001

Color

Brown / Grey

Brand

Delivery Time

25-40 Working Days

OEM

Warranty

1 Year

Transport Package

Carton + Pallet

Specification

ANSI

Trademark

Origin

Liling China

HS Code

8546209090

Production Capacity

50000PCS /Year

Key features

High Voltage Resistance: Superior low and medium temperature resistance with strong aging resistance for high voltage applications.

Customizable Bearing Size: Size of bearing capacity is customer specified to meet specific project requirements.

OEM Service Accepted: Professional supplier accepting OEM orders with free samples available for testing.

Dual Glaze Options: Available in common glaze and semi-conductor glaze, with brown and gray colors.

ISO9001 Certified: Manufactured under ISO9001 certification ensuring quality standards for electrical installation.

Long Service Life: Designed for nice appearance and long service time in high voltage power transmission.

Fast Delivery: Delivery time ranges from 25 to 40 working days for standard orders.

1 Year Warranty: Comprehensive 1-year warranty coverage for peace of mind and quality assurance.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedCustomization from Designs

Liling Sky Bali Industrial Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-06-09Nearest Port: Shenzhen, ShanghaiAverage Response Time: ≤1.85hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA

AI-Powered supplier vetting

SummaryThe supplier is identified as a limited trading company in Liling City, Zhuzhou, offering metal accessories, transformer equipment, ceramic insulators, composite insulators, glass insulators, and related products. It reports inventory capability, a stated annual productivity of 10,000 tons of insulators, sample- and design-based customization, ODM services, and OEM services for popular brands. It also reports customers in more than 20 countries and 50 qualified service suppliers. However, several controls lack documented records, including corrective and preventive actions, complaint handling, supplier-service assessment, and quality assurance status. Innovation evidence is weak: one R&D engineer, no new products launched in the past year, and no available SDK. It has no overseas warehouse or showroom, and no factory environmental impact assessment report was provided. Financial information is limited to year labels without substantive indicators, so financial credibility cannot be determined.

Supplier typeThe supplier is explicitly identified as a limited company and a trading company, located in Liling City, Zhuzhou. Its stated product scope covers metal accessories, transformer equipment, ceramic insulators, composite insulators, glass insulators, and related products, indicating a trading-oriented supplier with a broad associated product offering.

R&D capabilityInnovation evidence is limited: the supplier reports one R&D engineer, no new products launched in the past year, no available SDK, and no product information indicating new-product development. ODM service is available, but this does not establish strong internal innovation performance.

Production capacityThe supplier reports annual productivity of 10,000 tons for insulators, inventory capability, 50 qualified suppliers, and a product scope that includes several insulator categories. However, the manufacturing-capacity contract status is unknown, and the stated peak-season lead-time entry is inconsistent and unclear, limiting verification of reliable production capacity.

Customization capabilityThe supplier explicitly offers customization from samples and from designs, as well as ODM services. These statements provide direct evidence of both sample-based and design-based customization capability.

Client casesThe supplier reports that repeat buyers represent 50%–80% and claims long-term business relationships with customers in more than 20 countries across Europe, America, the Middle East, and Asia and Africa. These are direct indicators of customer reach and repeat business, although no named customer cases or independently verifiable project details are provided.