What certifications does the product have?

The product is ISO9001 certified and undergoes 100% finished product inspection.

What is the application voltage range?

The insulators are suitable for application voltages ranging from 25kV to 66kV.

What is the net weight of the insulator?

The approximate net weight varies by model, ranging from 5.2kg to 18.0kg.

33kv Support Insulator Porcelain Line Post Insulator

Name: 33kv Support Insulator Porcelain Line Post Insulator
Brand: Jiangxi Johnson Electric Co., Ltd.
SKU: 2096801495

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.

57-3

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

11kg

Transport Package

1000*1000*1000mm

Trademark

JOHNSON

Origin

China

HS Code

854620909

Production Capacity

100000

Key features

High Voltage Insulation: Designed for 25-66kV transmission with superior dry/wet flashover performance.

Robust Mechanical Strength: Cantilever strength of 12.5kN ensures stability under heavy load conditions.

Durable Porcelain Material: Made from high-quality porcelain for long-lasting insulation in harsh environments.

Full Customization Support: Offers full, minor, and flexible customization from samples or designs.

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

Fast Lead Time: Average lead time of one month for both peak and off-season orders.

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

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: ≤1.38h 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.