About Contune International Corp

Contune International Corp Limited is a comprehensive manufacturer and supplier in electrical field.

Our key products are testers for electrical insulators,production machines for insulators which are widely used by manufacturers of polymeric insulator, ceramic insulator, glass insulator in China, Russia, Brazil, Europe and south-east Aisa.

As electrical insulator itself is an important item in overhead power lines, strict technical tests are necessary both in production process and inspection. Our testing machines are designed into different purpose and function according to specific technical requirements defined in IEC, ANSI and other industrial standards.

Our Products

We are manufacturing and supplying below products

  1. Test equipment for high voltage insulators

    Testing machines applied for perform mechanical test and electrical test on electrical high voltage insulator and its basic material. These test methods are of great importance in inspecting quality of raw material of insulator, as well as complete product of composite insulator, ceramic insulator and glass insulators.

  2. Production Machine of HV composite insulators

    Production machines are used for manufacturing electrical insulator production line. Like crimping machine, vulcanizing machine, injection machine and marking machine for polymeric insulator, all of which are necessary for manufacturers to produce composite insulators(silicon rubber insulators) with sound quality.

  3. Composite Insulator and material

    Composite insulator is also known as polymeric insulator. It is used for insulation of electricity, isolating conductors from metal poles and other items. It consists of fiber glass rod as core, silicone rubber housing and metallic fittings on both ends.

Our Vision

We commit to machinery of electrical field, aiming to build the best brand of testing machine and production machine. In the past years our products have gain high praise from power grids in more than 13 province in China, national laboratories from Bejing and dozens of major manufacturers of insulators, bushings, conductors, metallic fittings and other line accessories. Our machines are also exported to overseas market, where there are lots of factories like Brazil, Russia, Southeast Asia and etc. With stable performance and optimized design, these machines are widely accepted and still in good condition.

Our Team

What we have acheived by 2019?

70Percent of market share occupied by Contune International Corp in China for test machines and production machines of HV insulators of all materials including silicone rubber insulator, ceramic insulators and glass disc insulators
450Machines sold for International market and it’s still growing every week
39Countries covered from major continent like Asia, Europe, South-America, Africa

Brief History of Our Company

September 2019

Users of HV insulator testing equipment in Indonesia continue to grow.

November 2018

Occupying 70% market share in Chinese domestic market on test equipment and production facilities of high voltage insulators

February 2017

Upraged machines of production line for composite insulators has been welcomed by Indian insulator manufacturers

March, 2016

Products series updated with newly developed and optimized technology which enchance stability and performance of existed products and expanded span of machines for electrical industry

January, 2016

Fully capable for self-design, develop and manufacturing composite insulator from 11KV up to 220KV including all common type, cost and quality of which are under even better control

March, 2015

Deepen collaboration with leading and reputed machine manufacturer Zibo Qianheng Automation in China, bringing clients more profits: lower price, more technical support in machinery production and electrical insulators

May, 2013

Established and using individual company name Contune International Co.,Ltd and brand “Contune” to be more flexible in adapting international market for section of small bidding,  retail agent and other issues

May, 2009

Manufacturer of testing machine dedicated to mechanical and electrical tests of overhead line insulators, line fittings (accessories) and conductors


What They Are Saying