Masaichi Nagai founded the Nagai Machine Manufacturing Company in 1938 at the Kawaguchi city,
which is known as the town of the molding. After World War 2.
It produced & sold the manual noodle-making machine, and received favorable comment from customer.
After that, it produced the hand foot printer and paper guillotine.
Ever since, it has been producing especially paper guillotine and related products.
In these days, the customer calls it Nagai Paper Guillotine.
| 1938 | Founded in Honcho, Kawaguchi City, Saitama Prefecture |
| 1949 | Reorganization Co., Ltd. |
| 1953 | Founded a foundry department in Naka Aoki-cho, Kawaguchi |
| 1961 | Relocated new factory to Aoki Town, Kawaguchi City |
| 1963 | Expansion of assembly plant |
| 1965 | Established Nagai Machinery Foundry Co., Ltd. |
| Received the SME Commissioner's Award | |
| 1970 | Designated as "Small and Medium Enterprises Rationalization Model Factory" by the Small and Medium Enterprise Agency |
| 1974 | Kawaguchi Tax Office Excellent Corporation Courtesy Letter |
| Opened Otone Factory in Otone-cho, Kita-Saitama-gun | |
| 1976 | Established Nagai Machinery Iron Works Co., Ltd. |
| 1983 | Tohoku Service Center established in Sendai City |
| Completion of new office building head office factory | |
| 1986 | Otone factory extension |
| 1987 | Awarded by the Commissioner of the Social Insurance Agency |
| 1988 | Tokyo Bookbinding Industry Association awarded a letter of appreciation for donation of 10,000 cutting machines from a higher training school |
| 1989 | Established Kyushu Service Center in Fukuoka City |
| 1990 | Founder Seiichi Nagai 5th Class Light Asahi Award Honors |
| 1993 | Otone factory expansion |
| 1996 | Nagai Machinery Iron Works Co., Ltd. becomes Lilia Metal Nagai Co., Ltd. |
| 2001 | Obtain ISO9001(1994)Certification |
| 2004 | Obtain ISO9001(2000)Certification |
| 2005 | Launch NCW137D8 Series |
| 2007 | Designated as Nagai Machinery Works Otone Factory and Sai no Kuni Factory |
| 2009 | Launch NCW-D9 Series |
| 2010 | Otone Factory becomes Nagai Technical Plant (NTP)Co., Ltd |
| 2013 | Launch NCW-E1 Series |
| 2018 | Obtain ISO9001(2015)Certification |
| 2019 | Launch NCW-N1 Series |