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Kyoraku Co., Ltd. Releases Test Data of Fuel Efficiency with Its Original "Foamed Duct"

Kyoraku Co., Ltd. (Headquarters: Osaka, Chuo-ku, President: Takamitsu Nagase, hereunder “Kyoraku”) obtained actual vehicle test data for fuel efficiency of vehicle adopting Kyoraku’s original foamed duct in the air conditioner. Although it has been known that thermal insulation would improve with foamed ducts, it is the first time the efficiency has been proven with an actual running vehicle (according to Kyoraku examination). (Measured at Japan Automobile Transport Technology Association (JATA))

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Measurement Results Summary
Kyoraku conducted fuel consumption measurement under the conditions of JC08 Mode in an air conditioned light (under 660 cylinder capacity) vehicle. Compared to existing conventional PE (polyethylene) instrument panel duct of 0.8mm thickness, it was proven that, with Kyoraku PP (polypropylene) foamed duct of 2.5mm thickness, the mileage per liter is 180m better with a 2.8 times expansion ratio foamed duct and 255m better with a 4.8 times expansion ratio foamed duct.
Although there have been needs of foamed duct for automotive air conditioning for the purpose of weight saving, this actual proof of fuel consumption effect is expected to enhance further appeal. In addition, if the fuel efficiency figures are applied to weight savings of a vehicle, they are equivalent to reduction of 15kg or more.
More information on the test results will be released at K2016 (International Plastic and Rubber Industry Exhibition) in Germany scheduled October, 2016.

Global Partnership
In order to expand its foamed duct technology, Kyoraku is searching for potential partners worldwide that are interested in utilizing the technology through licensing.
For inquiries, please refer the following website.

About Kyoraku Co., Ltd.
Kyoraku Co., Ltd. is a plastics product manufacturing and sales company with a proud history, awaiting its upcoming 100th anniversary in 2017. Specializing in plastic components for medical, food and automotive industries, which require high quality and specialized plastics, we devote ourselves in sincerely responding to our customers’ trust and needs thorough our facilities in Japan and internationally.

[Company Profile]

・Company Name   :   Kyoraku Co., Ltd.
・Foundation : September 20, 1917

・Executive Board Director

: Takamitsu Nagase
・Headquarters : 2-3-10 Kawaramachi, Chuo-ku, Osaka
・URL :

・Business : Production, processing and sales of plastic products


[Contact for the press]
Kyoraku Co., Ltd.
Global Business Support Section
Eiji Konosu, +81-3-5833-2819



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