About Us


Our History

1946 Foundation of the company at Nakamachi, Sakai City, Osaka Prefecture. Unlimited partnership "IZUMI KINZOKU KOGYOSYO" was established
where main business concerned manufacturing machineries for textile and agricultural industries.
1952 Started manufacturing and processing of ball shafts.
1959 The name "IZUMI KINZOKU SEISAKUSYO CO. LTD.," was established. Business included manufacturing and processing of
various types of bearings, textile machine parts, and press processing.
1960 Trade name of Unlimited partnership "IZUMI KINZOKU KOGYOSYO" changed to Unlimited partnership "NAKAO SEISAKUSYO "
Trade name of "IZUMI KINZOKU SEISAKUSYO CO. LTD.," changed to "IZUMI KINZOKU KOGYOU CO. LTD.,"
Business focused on manufacturing and repairing of various types of mashine tools.
The KN-101,201,and 301 grinding machines were developed.
1962 Main factory was newly established at Fukai Naka-machi Sakai City.
1968 The KN-111,211,and 311 grinding machines were developed.
1982 Head office transferred to Tondabayashi City.
1985 The CNC type KN-113,213,and 312 grinding machines were developed.
1989 The KN-500 series Superfinishing machines for raceway bearings were developed.
1990 The CNC type KN-102,202, and 302 compact type grinding machines were developed.
1993 The KN-700 series for bearing assembly line was developed.
1996 The KN-421 CNC dual grinding machines was developed.
2000 "NAKAO SEISAKUSYO" was merged.
KN-314A CNC Toripod shaft grinding mchine was developed.
2006 The KN-611 CNC 3-axis dual grinding machine was developed.
2013 Tetsuo Nakao was appointed Chairman of the Board, Tsutomu Nakao appointed President.

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Get in Touch

  • Phone:
    +81-721-26-0211
    Fax:
    +81-721-24-1491
  • Email:
    izk-sales@izk-osaka.com
  • Address:
    584-0022 1-68, HIGASHI-2-CHOME, NAKANO-CHO, TONDABAYASHI OSAKA JAPAN