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Latest update: 27/04/2017 14:08:47

Tomiwa Chuzou Co., Ltd.

We respond to all kinds of demands for castings weighing from 1 kg to 22 ton.

We are a casting manufacturer established 70 years ago. We have a proven track record for manufacturing valves, pumps, castings for engineering machines and industrial machines, metal molds for automobiles, etc. We carry out processing at our factory equipped with a large (3,000 x 3,000 x 4,000 mm) shot blast machine. Few enterprises are capable of large-scale casting. We are recognized as a specialized manufacturer utilizing techniques that we have cultivated over many years as well as owning the newest facilities. A five-ton ductile cast iron ball, which we manufactured, was aired on the “Hoko x Tate (halberd x shield)” television program. We are considered to be the only company capable of manufacturing cast products in the 10 ton class or more in, and north of, the Kanto region.


Other presentation

[Company strength]
We can handle various numbers of products from single to mass production and various sizes from small (1 kg) to large (we have a proven track record of producing castings weighing up to 22 ton). Few enterprises are capable of producing large-scale products, and such work can only be fulfilled by a company with the know-how, techniques and facilities. Processing is carried out at our factory equipped with a large (3,000 x 3,000 x 4,000 mm) shot blast machine. A five-ton ductile cast iron ball, which we manufactured, featured prominently in a television program named “Hoko x Tate (halberd x shield)”.

[Business description]
We mainly manufacture valves, pumps, castings for engineering machines and industrial machines, metal molds for automobiles, etc. The main materials that we handle are ferrum casting (FC), ferrum casting ductile (FCD), Ni-resist cast iron, specially blended cast iron, aluminum castings, steel castings, stainless steel castings, and other nonferrous alloy castings. 

Casting, manufacture of wooden forms and foamed molds, and machine work

[Strength of products/technologies]
Many of our artisans whose techniques are recognized, serve on the Saitama Prefecture Certified Casting Skilled Workers Association, this includes our president who serves as the chairman. We have one “Contemporary Master Craftsman (prominent craftsman)” certified by Ministry of Health, Labour and Welfare, three highly skilled technicians and 13 first-class casting certified skilled workers. We thereby meet our customers’ needs with high quality, low cost and a short delivery period. We have received many awards at the Saitama Prefecture Casting Technology Competition. We aim to rapidly advance as a professional group in casting business circles where higher grade demands will further increase from now on.

[Representative's message]
We have continued manufacturing in “Kawaguchi, a city of casting” for the seventy years since our founding. We have continued to always challenge new things and new matters with the belief that “we can carry out casting of any product shape if air/gas in a mold can be released”. With this belief, we have manufactured various products ranging from large to small, including large valves and pumps for public use, parts for machine tools, industrial machines etc., and metal molds for automobiles. We have many first-class technical experts and highly skilled technicians, including a Contemporary Master Craftsman to meet our customers’ demands. We look forward to doing business with you.

[Company structure for market development/overseas expansion]
We respond to new customers by establishing a window for opening sales channels under a three-person structure comprising the president, the senior managing director and the managing director. We hold preliminary discussions about specifications of products to be produced, sales conditions etc. by visiting customers if requested, or at our company if the customer prefers to visit our facilities.  

[Market share/Ranking]
Our share of casted products in the 10-ton or more class ranks first in the regions north of Kanto (only our company can manufacture products of this class.)

[Awards and media coverage]
Selected for Special Award of Saitama Prefecture Casting Technology Competition (gray cast iron division, 2014, Ministry of Economy, Trade and Industry, Kanto), and other many awards etc.

Fuji Television “Hoko Tate (halberd and shield)”
Published in “Kawaguchi Shi Monozukuri Index (Kawaguchi City manufacture index)”
Published by many other media

ISO 9001: SAINOKUNI Saitama “SAINOKUNI Shitei Kojyo (a factory designated by Saitama Prefecture)
Model Business Establishment for Enterprise Promotion in Kawaguchi City, Vibrant Enterprise in Kawaguchi 

[Main Clients / Business History (domestic)]
Main customers: Hitachi Zosen Corporation, Morita Iron Work Co., Ltd., Banzai Industries Ltd., Ebara Corporation, YUTAKA SEIMITSUKOGYO, LTD., Shinryo Kogyo Ltd., Laboratory of Efficient Machines, and MATSUDA SEISAKUSHO CO., LTD.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ

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