Porcelain Insulators | Electric Insulators Manufacturer

About TCI Insulator

A leading manufacturer of porcelain insulators with a commitment to quality, innovation, and global standards.

Professional Porcelain Insulator Manufacturer

Specialized in wet-process porcelain insulators for over a decade
Manufacturing strictly compliant with ISO 9001:2015 standards
Advanced 111m tunnel kiln and 2 square kilns for high-volume production
Over 100 types of insulators for transmission and distribution lines
Approved by SGCC and compliant with ANSI, IEC, BS, DIN, NBR, AS, GB standards
Custom design capability for non-standard applications

100+

Insulator Types

ISO 9001

Certified

SGCC

Approved

Our Products

High-quality porcelain insulators designed for reliability in demanding electrical environments.

55-4 Brown Insulator

Pin-type porcelain insulator with high mechanical strength for distribution lines.

Standard: IEC, ANSI
Material: Wet-process porcelain
Color: Brown
Application: 11kV-33kV lines

55-3 Grey Insulator

High-voltage pin insulator with excellent leakage distance and pollution resistance.

Standard: IEC 60383
Material: High-strength porcelain
Color: Grey
Rated Voltage: 25kV

57-1 Grey Insulator

Robust design for medium voltage transmission with superior creepage performance.

Standard: GB/T 7253
Material: Wet-process porcelain
Color: Grey
Application: 35kV systems

53-3 Brown Insulator

Compact pin insulator ideal for urban distribution networks and tight spaces.

Standard: ANSI C29.6
Material: High-density porcelain
Color: Brown
Rated Voltage: 15kV

Suspension Insulator Unit

Disc-type porcelain insulator for high-voltage transmission lines and substations.

Standard: IEC 60120
Material: Wet-process porcelain
UTS: 70kN, 120kN options
Application: 66kV+

Double Shed Insulator

Enhanced pollution performance with double sheds for coastal and industrial areas.

Standard: IEC 60383-2
Material: High-alumina porcelain
Leakage Distance: >450mm
Rated Voltage: 36kV

Long Rod Insulator

Single-unit long rod design for reduced maintenance and high reliability.

Standard: IEC 60672
Material: High-strength porcelain
Length: 1200mm - 3000mm
Application: Substations, switchyards

Low Profile Insulator

Space-saving design for compact equipment and retrofit installations.

Standard: ANSI C29.9
Material: Dense porcelain
Height: <150mm
Rated Voltage: 10kV

Anti-Fog Insulator

Optimized for high humidity and fog-prone regions with extended creepage.

Standard: IEC 60815
Material: Pollution-resistant porcelain
Creepage: 31mm/kV
Application: Coastal areas

High Strength Insulator

Reinforced design for areas with high mechanical stress and wind loading.

Standard: ANSI C29.11
Material: Reinforced porcelain
Mechanical Load: 16kN
Application: Mountainous regions

Universal Mount Insulator

Versatile mounting options for cross-arm, post, and bracket installations.

Standard: Multiple
Material: Standard porcelain
Mounting: Adaptable
Application: Universal

Custom Design

Tailored insulator solutions for unique voltage, mechanical, or environmental needs.

Standard: Customer-specific
Material: As required
Design: Full engineering support
Lead Time: Negotiable

Why Choose TCI Insulator?

We combine advanced manufacturing, strict quality control, and global compliance to deliver unmatched reliability.

ISO 9001:2015 Certified

Full process control from raw materials to finished products ensures consistent quality and reliability.

SGCC Approved

Recognized by State Grid Corporation of China, meeting the highest national standards.

Global Standards

Compliant with ANSI, IEC, BS, DIN, NBR, AS, and GB – ready for international deployment.

Custom Engineering

We design and manufacture insulators for non-standard applications and special requirements.

Frequently Asked Questions

Get answers to common inquiries about our porcelain insulators.

What standards do your insulators comply with?

Our insulators meet international standards including ANSI, IEC, BS, DIN, NBR, AS, and GB. We are also approved by SGCC and manufacture under ISO 9001:2015 quality management system.

Can you manufacture custom-designed insulators?

Yes, we have full engineering capabilities to design and produce insulators for specific non-standard applications based on customer requirements.

What is the production capacity?

With an advanced 111-meter tunnel kiln and two square kilns, we have substantial production capacity to meet large-volume delivery requirements on time.

What types of porcelain insulators do you manufacture?

We produce over 100 types of porcelain insulators including pin-type, suspension, long rod, and post insulators for transmission and distribution lines.

What is the manufacturing process?

All our porcelain products are manufactured using the wet process method, which ensures high density, strength, and reliability in electrical performance.

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