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HISTORY
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Miyama Tool Works(circa 1935)

Company premises and founder

Factory

Since1925
Our manufacturing policy is based on the concept that product development starts with our customers - at site.
Products in the early days

Hand grinder

Cobra brand gasoline blow torch

Oster-type hand threader
Rex was originally established as “Miyagawa Tool Works" in Nishi-ku, Osaka in August 1925. The company had great success in producing the above products for the domestic market.
In 1946, shortly after World War II, the company started the development and domestic production of a ratchet hand threader.
In 1960, Rex began its first mass-production of electrical threading machines (No. 2 pipe machine). It was the first step in

Cutting machine designed for the M No. 6
threading machine. It had 4 bite blades and could cut stainless steel pipes
Toward domestic production of electric power machines
In 1964, in the midst of high economic growth in Japan,we started sales of the M No. 6 Pipe machine, which enabled threading on 6″ steel pipe - the maximum size of pipe that could be threaded at that time in Japan - so we are proud of our contribution to the construction of social infrastructure.
Following this, we introduced our 4″ machine, then the 3″ machine and, in 1975, our 1½″ machine. In 1989, we introduced a ¾″ machine, the smallest machine in the world, which was greeted with great acclaim and was highly evaluated by users of the time.

The M No. 6 threading machine, introduced in 1964, provided stable threading using the so-called “Master Threading Method", which was big news in the industry.
Transition to electric-powered threading machines

THE HISTORY OF REX
1925
Miyagawa Tool Works established.
1960
Mass production of pipe machines started.
1974
European market links opened.
1976
American market links opened.
1987
REX International U.S.A., Inc. established.
1988
Wheeler Mfg. established as a division of REX International U.S.A., Inc.
2D computer-aided design (CAD) introduced.
1991
REX International Asia Co., Ltd. established.
1996
Suzhou REX Electro-Machinery Co., Ltd. established.
Tottori Factory established.
1997
REX Museum completed.
Roll Threading machine receives Grand Meritorious Prize for Japanese Inventions.
1998
Trade with Central & South America begins.
2000
RB Tube Cutter wins Good Design Award, and Small and Medium Enterprise Agency Director's Award.
2002
REX Industries Europe S.r.l. established.
2006
Awarded Higashi-Osaka Gold Prize for Craftsmanship.
Recipient of The Japan Gas Association (JGA) ‘Technology Award’ for emergency shut-off tools for large diameter plastic pipe (RS-200)
2007
Mantis 180WA/180WS Band Saw launched.
Official supplier of International Skills Festival for All Japan 2007.
2008
Winner of the 33rd Nikkan Industrial Newspaper Grand Prize for Inventions Recipient of the Osaka Environmental Agency Incentive Award for Business Activities.
Selected as one of the “300 Vibrant Manufacturing SMEs” (METI 2008).
2012
Tottori Factory receives JSCTA's Environment Award 2011, 2012, and 2013.
2013
REX Industries India Pvt. Ltd. established.
Recipient of the Japan Gas Association ‘Special Award’.
Recipient of the Assoc. for Rational Administration (Osaka) Inc. ‘Administrative Rationalization Award’.
2014
Recipient of the Kansai Quality Award for Excellence 2014.
Recipient of Higashi-Osaka City "Award for Excellence in CSR Management" in two categories.
2017
REX International Asia Co.,Ltd.moves to new offices.
Tottori Factory receives JTA's Environment Award 2017.
2018
Tottori Factory receives JTA's Environment Award 2018.
2019
Mr. John K. Miyagawa, Chairman, awarded The Order of the Rising Sun, Gold and Silver Rays.
2020
Rex threading machine with self-opening die head, and roll threading machine certified as building equipment of outstanding technical heritage by the Japanese Association of Building Mechanical and Electrical Engineers.
2025
100th Anniversary of the founding of the company.