History

• 1963

  • Jul.

    Established Tobu Heavy Industries Co., Ltd.

  • Nov.

    2.5t Telfer 4 type with grab bucket for raw sugar for Meiji Sugar
    (the first of our products)

• 1965

  • Nov.

    Established Tobu Heavy Industries Co., Ltd.
    Moved the head office and factory to Ukita, Edogawa-ku, Tokyo

• 1966

  • Apr.

    Tsuji Sangyo Full-scale entry into the marine field for deck cranes

• 1967

  • Apr.

    Delivered a dedicated ship for wood chips, orange peel type grab bucket
    (Mitsui OSK Lines “Daiomaru” 13m³)

  • May.

    First export to Taiwan Kaohsiung Port Affairs Bureau
    10 single index string type grab buckets for ore

• 1970

  • Jul.

    Design, manufacture and delivery of an improved version of a large grab bucket for steelworks raw material quays
    Volume 30.7m³ (for coal)　9.8 m³ (broken ore) 　9.6 m³ (powdered ore)

• 1973

  • Mar.

    Opened Funabashi Factory in the suburbs of Funabashi City

  • Aug.

    Delivered the world’s largest electro-hydraulic grab bucket Volume for earth and sand 20m³ Own weight 36t (Corresponding to this four bridge construction)

• 1976

  • Feb.

    Special lightweight double rope grab bucket for Kuwait 2.8m³ 6 units
    (Nitomo Maru-for Yamashita Shin Nihon Kisen)
    Pioneering delivery to the Middle East

• 1977

  • May.

    Moved the head office factory to the current location, Urayasu City

• 1979

  • Feb.

    Delivered a large marine single-cable grab bucket and remote control pull string release device
    (Yamashita Shin Nihon Kisen Cement Clinker for Kuwait 6.5m³ x 8.5t 5 types)

• 1983

  • Feb.

    Developed Japan’s first full-scale radio-controlled single-cable grab bucket
    (Claw type 4m³ x 4t)

• 1992

  • Nov.

    Developed a new large cylinder type wireless single cable grab bucket,
    coal 10m³ 4 units (For Nippon Paper Industries / Yatsushiro Port Transport)

• 1996

  • May.

    Developed a three-claw crossed engine-driven hydraulic grab bucket for handling rice materials
    20m³, own weight 6t (for Ura Wharf in Tako, Shizuoka Prefecture)

• 1999

  • Apr.

    The head office building and Urayasu factory will be completely rebuilt to support multipurpose functions.

• 2002

  • Feb.

    Received “Invention Grand Prize / Invention Achievement Award” for single-line wireless grab bucket
    (Japan Institute for the Promotion of Invention)

  • Oct.

    Developed a shockless valve (buffer device) compatible with single-cylinder wireless cylinder type grab buckets.
    Super-large 20-30 m³ class (wood chips 20 m³ for Nippon Paper Industries)

  • Oct.

    Received “Small and Medium Business Administration Commissioner Encouragement Award” and “Implementation Achievement Award” with coil lifter (Invention Association)

• 2003

  • Feb.

    The head office building was expanded to expand the R & D space and strengthen support for the next generation.

  • Oct.

    Succeeded in increasing the size of the scrap (for scrap iron) engine hydraulic orange peel type grab bucket.
    Delivered the world’s largest 6m³ (for Toyo Wharf)

• 2004

  • Apr.

    A ceremony to commemorate the 40th anniversary of the founding was held by inviting about 200 people from Japan and overseas.
    Demonstration of single-cable wireless grab bucket and coil lifter in the factory.

  • Apr.

    Develop and deliver a single-cylinder wireless cylinder type orange peel type grab bucket(For Hitachi Wharf)

• 2005

  • Oct.

    An 18-ton suspended fixed crane was added to the head office building.

  • Nov.

    Completed the newly developed single-cylinder wireless cylinder type [X7].
    Held a show to partner companies.

• 2006

  • May.

    Develop and deliver electro-hydraulic telescopic suspension with a maximum suspension load of 15 tons (For Tagonoura Wharf)

  • Jul.

    Developed a lightweight single-cylinder wireless cylinder grab bucket [C8] for marine use.

• 2007

  • Mar.

    The first machine with an engine-type grab bucket swivel mechanism for rice materials started operation.

  • Dec.

    Delivered Maruti Suzuki’s Indian 20t horizontal coil lifter.

• 2008

  • Mar.

    Opened Sasebo Factory.

  • Dec.

    Concluded an after-sales service contract with IHI Marine Engineering (S) Pte Ltd.
    Concluded an after-sales service contract with IHI Marine (Shanghai) Co., Ltd.

• 2009

  • Jul.

    Concluded an after-sales service contract with IHI Marine B.V. (Rotterdam).

  • Jul.

    Opened Urayasu factory.

• 2011

  • Mar.

    Urayasu factory (Chidori district) expansion work completed

• 2012

  • Apr.

    Completion of expansion work for Sasebo factory