• A comprehensive industrial machinery company working to harmonize humanity and nature
  • A comprehensive industrial machinery company working to harmonize humanity and nature
  • A comprehensive industrial machinery company working to harmonize humanity and nature
  • A comprehensive industrial machinery company working to harmonize humanity and nature
  • A comprehensive industrial machinery company working to harmonize humanity and nature
  • A comprehensive industrial machinery company working to harmonize humanity and nature

■ Construction Development

Development   We create business by developing new products and pioneering new markets.

■ Sansui Machinery Division

- We create business by developing new products and pioneering new markets.

We have established the Sansui Machinery Division for the purpose of process engineering by specialist engineers for products and work methods that were developed independently by Yamasan, and for products that were developed jointly with other manufacturers. Sansui Machinery has applied its river water intake and pumping technologies to pioneer the development of new river surface water intake methods that are now used on rivers across Japan. Now, when the the natural environment has taken on increased importance on a global scale, rivers bring benefits to people in the green spaces they create, and water intake equipment which is friendly to the fish and other organisms that live in these rivers is needed. Sansui Machinery is developing new technologies for this purpose.

[1] New water intake method that automatically regenerates the intake strainer using compressed air

Sugano river pumping station, Hyogo Prefecture
Sugano river pumping station, Hyogo Prefecture
Automatic regeneration using compressed air
Automatic regeneration using compressed air

[2] River surface water intake method using a surface water intake valve

River surface water intake valve (1)
River surface water intake valve (1)
River surface water intake valve (2)
River surface water intake valve (2)
Okuma River Itakura Snow-melting Station, Niigata Prefecture
Okuma River Itakura Snow-melting Station, Niigata Prefecture
Pumping equipment (1)
Pumping equipment (1)
Pumping equipment (2)
Pumping equipment (2)
Chikusa River extreme disaster project, Hyogo Prefecture
Chikusa River extreme disaster project, Hyogo Prefecture

To everyone who is considering a substitute facility for fixed dams

Recent river maintenance projects require water intake equipment that is environmentally friendly. The river surface water intake method proposed by our company is an intake method that does not reduce the river cross-section and does not require damming. It is used in nature-oriented river restoration projects.

[3] Examples of work: Nigaryohon River Home River-improvement Model Project, Kanagawa Prefecture

During construction
During construction
Conditions after improvements
Conditions after improvements

■ New pumping technologies

■ Applications

Agricultural water, snow melting, snow flowing conduit, municipal water supply, others

[Sansui Machinery Division]