About ISEKI

HISTORY OF ISEKI

    Mr. Yoshihito Kurose the founder of Iseki Poly-Tech Inc. decided to study solutions to the unique problems of installing sewage infrastructure in the crowded Japanese urban configurations.
    He identified that the equipment which was to be designed should have the widest range of application and it had to be able to cope with wide-ranging soil conditions. He chose a slurry system as the basis point of development for this reason.

    1971
    Company established in Japan

    1972
    Introduced its first slurry shield the MEPCB a “manually” operated earth pressure counter-
    balance shield with a sophisticated automatic counterbalance head, capable of coping with
    highly unstable and sensitive water logged ground.

    Mechanical Earth Pressure Counter-balance Bentonite Shield (MEPCB)

    1979
    Iseki enjoyed the challenge of doing the impossible and defying experts who said it could not be done. Launch of the “remotely” operated Telemole revolutionzed Microtunneling.

    1981
    The Tele Crunchingmole (TCM) marked the next step forward,  introducing a machine with
    an on-line “off-set” rotary crusher for processing cobbles and boulders.

    TCM Crunchingmole

    1981
    European branch established in the United Kingdom

    1983
    First “Pipe Roof” temporary works structure installed in Singapore, and to date Iseki have installed over 77km of microtunnelled Pipe Roof structures on 32 projects, possibly marking Iseki as the world’s most experienced Pipe Roof Constructor.

    Early Pipe Roof Projects

    1984
    The radical Unclemole TCC (Tele Cone Crusher) with a unique epicyclical cone crusher (combined bi-deirectional and eccentric radial movement) came to the market. A machine with a single cutter head that was capable of dealing with all soft ground conditions
    (Clays/ Silts/ Sands/ Gravels) along with boulders up to 30% of the machine size and soft rock. Soon to be recognized as the most versatile MTBM and with subsequent variants (TCZ, TCZ-M, Pipe-replacer, TCP & TCL) is probably the world’s most popular slurry MTBM.

    1984
    United States branch founded

    1988
    Mr. Kurose received Distinguished Honorary Professor Award from University of Alabama for his contribution to economic development between the United State and Japan. Yoshihito Kurose Scholarship established for students majoring in international business.

    1994
    Unclemole Super TCS range unveiled widening operational ground conditions to include hard rock ≦200 MPa unconfined compressive strength and boulders>30% of the machine size whist maintaining the unique epicyclical crusher from the proven Unclemole TCC MTBM.

    Early Pipe Roof Projects
    Early Pipe Roof Projects

    1994
    Iseki leads the way again by producing EPB machines with mud-pumping spoil removal/ transfer systems for a major first time sewerage project in Bangkok

    Euro Iseki Overseas Thailand, JV company goes on to install over 81km of microtunnelled lines on 3 different projects

    1995
    Euro Iseki in the UK presented with the much coveted Queens Award for Export Achievement.

    2000
    Unclemole TCV inaugurated, system for direct trenchless installation of PCV pipe from 200mm ID to 500mm ID

    Unclemole TCV

    2005
    TCTS Shuttlemole introduced, customized Unclemole Super with retractable peripheral cutters facilitating MTBM recover through the installed casing pipe. Specifically developed for the construction of blind-hole pipe roof structures.

    ​Shuttlemole TCTS

    2007
    New Unclemole Super TCS which has a built in facility for man access to the cutter head through the machine, this allows cutting discs to be changed where long drives are undertaken.

    2010
    The largest diameter(4310mm O.D) TCS built for the pipe jacking project of sixty (60) meter deep drainage in Saudi Arabia.

    2012
    Iseki Microtunnelling in the UK complete the UK’s most technically challenging project to date
    ・980 metre 1.8 metre diameter long sea outfall.
    ・40 metre depth drive shaft
    ・300 metres installed on a 1 in 10 declined drive entering into an Inspection shaft on
        a 600 metre vertical radius curve
    ・680 metres advanced under the English Channel on a 1 in 100 declined drive.
    ・Underwater seabed MTBM recovery

    Plan of project
    Section of project

    ・System deployed for Fiber Optic data transfer/control cables, implemented with microtunnelling System for the first time.

    2013
    Iseki Microtunnelling in the UK develop and produce the first “Bolt On” mixed face cutter head for the Unclemole TCC machine. Extending the operational range to include medium strength rock.

    Unclemole TCC cutter head
    Unclemole TCC-R Cutter head 

    2015
    Iseki have installed over 77,764km of  microtunnelled Pipe Roof structure on 32 projects as of today.

    The main benefits of the Iseki Pipe Roofing Method are:
    ★ Total security against settlement and ground movement.
    ★ Cost saving over alternative methods.
    ★ Flexibility of design.

    Installed pipes are linked together to make secure structure, which is then excavated, and finally lined to create the finished tunnel.

    2016
    ISEKI TCTS Shuttlemole won an award at the China No-dig conference in Beijing 

    2017
    ISEKI now offer you “Segmental Slurry Tunnell Boringmachine”. The TBM consists of a cutter head made in Germany, a drive equipment made in Japan and a back up equipment made in Korea.

    2017
    ISEKI develop and produce “New TCS” machine.
    This “New TCS” machine can be used to standard soil, mixed soil, and rock.
    Iseki offers the appropriate solution for all geological challenges.

    Machine for standard soil and mixed soil
    Machine for standard soil and mixed rock

    and to the Future…
    Iseki has pioneered the introduction and partnership of Microtunnelling Equipment for over five decades, also with approaching 2,500 units produced they are probably the world’s most popular slurry MTBM.

    Iseki works in close partnership with Clients and Suppliers and provides engineered solutions for infrastructure installations utilizing Microtunnelling Technology.


    As a manufacture and operator of rental equipment Iseki have gained a detailed appreciation of the capabilities of their Microtunnelling Systems and draws on this experience to assist Clients in delivering successful projects.

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