What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

Do you provide quality inspection for finished products?

Yes, we perform 100% function inspection on all finished products with clear instructions.

What are the available creepage distances?

Creepage distances range from 356mm to 1145mm depending on the specific model selected.

High-Quality Durable Porcelain Insulators for Safe Energy Applications

Name: High-Quality Durable Porcelain Insulators for Safe Energy Applications
Brand: Jiangxi Johnson Electric Co., Ltd.
SKU: 2126863955

Jiangxi, ChinaJiangxi Johnson Electric Co., Ltd.

US$3.68-4.80

200 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Application

High-voltage

Material

Porcelain

Model NO.

57-4L

Structure

Post Insulator

Type

A Type Insulator

Usage

High Voltage Power Transmission, Insulation, Electrical Installation

Size of Bearing Capacity

12.5kN

Certification

ISO9001

Color

White

Net Weight

16kg

MOQ

Transport Package

1000*1000*1000mm

Trademark

JOHNSON

Origin

China

HS Code

8546209090

Production Capacity

100000

Key features

High Mechanical Strength: Cantilever strength of 12.5 kN ensures reliable performance under heavy loads.

Comprehensive Electrical Ratings: Supports application voltages from 25kV to 66kV with high flashover voltage.

Diverse Creepage Distances: Available in 356mm to 1145mm to suit various pollution levels and insulation needs.

ISO9001 Certified Quality: Manufactured under strict ISO9001 standards with 100% finished product inspection.

Full Customization Options: Offers full, minor, and flexible customization including sample and design-based options.

Wide Application Range: Ideal for high-voltage power transmission, insulation, and electrical installation.

Multiple Shipping Terms: Flexible Incoterms including FOB, CIF, CFR, and EXW for global logistics.

Established Manufacturer: Over 8 years of export experience with 3 production lines and 6 QA/QC inspectors.

Company profile

Exhibition ExperienceExperienced TeamProduction Process VisualizationCustomization from Samples

Jiangxi Johnson Electric Co., Ltd.

Jiangxi, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.32h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryJiangxi Johnson Electric Company manufactures a broad range of electrical insulators and related fittings, with three production lines and 41–50 quality-control staff. It supports extensive customization, including customization from samples and designs, and follows uniform finished-product inspection instructions. However, the supplier reports no certification of management systems, no written procedures for service assessment, corrective actions, complaints, or quality assurance, and no overseas agents, warehouses, showrooms, or in-stock service. Its R&D evidence is limited: one year of R&D engineer experience is reported, with no new products in the past year, no ODM, 3D software design, SDK, or popular-brand OEM capability. Export sales account for 51%–70%, and the supplier has participated in one named offline trade show. Financial records are referenced for 2022–2024, but the provided slices do not establish financial strength.

Supplier typeThe supplier is an electrical-insulator manufacturer offering glass, porcelain, composite polymer insulators, transformer bushings, and end fittings. Its listed combined facilities include molding, drying, glazing, kiln, and related production equipment, supporting classification as a specialized manufacturing supplier.

CertificationsThe supplier reports no certification of supplier management systems. It also reports no written quality-assurance procedures or records, although finished-product inspection instructions are stated to be available and uniformly followed.

After-Sales capabilityThe supplier has no overseas agents or branches, overseas warehouse, showroom, inventory service, or written procedures and records for complaint handling, service assessment, or corrective and preventive actions. It does accept several quotation and payment terms and reports a one-month average lead time in both peak and off-season, but the documented after-sales infrastructure is deficient.

R&D capabilityInnovation evidence is weak: the supplier reports one year of total R&D-engineer experience, no new products in the past year, no 3D software design service, no ODM service, and no available SDK. It does offer several forms of design customization, but this does not establish strong product innovation capability.

Production capacityThe supplier operates three production lines, has 41–50 quality-control staff, and lists facilities covering molding, drying, glazing, kiln, and related processes. It also states that finished products are inspected under instructions that are uniformly followed; however, it reports no in-stock capacity and no valid manufacturing contract with associated subcontractors.

Customization capabilityThe supplier explicitly accepts customer designs and provides full, minor, flexible, sample-based, and design-based customization. This is direct evidence of broad customization capability, although 3D software design services are not provided.