Studying the past to learn new things -hydraulic technology of Sanki-

Studying The Past To Learn New Thing We feel it is the most meaningful word when considering hydraulic technology.

Old, but latest technology

More than 300 years have passed since it was formulated by Pascal (1623~1662), a French, as Pascal’s theorem in the middle of 17th century, but hydraulic technology is still used in a wide range of areas from the latest jetliners to automobiles we are familiar with.

High reliability

In the cases above, hydraulic technology is used in the control system, brakes, etc. where the highest priority is placed on reliability, and it shows high reliability of hydraulic technology.


In case of automobiles, hydraulic technology is used mainly in the power steering and the brake, and they are also the important safety parts, which are not allowed to fail. No one wants to drive a car whose brake does not work once in 10 thousand times or a car whose handle does not work.

Economic rationality

However, it would not be as popular as it is now if its feature is only the high reliability. Hydraulic systems are compact and lightweight, and their cost is relatively low, and such economic rationality as well as high reliability is the reason it is adopted in such a lot of areas.

Characteristics of fluid

Then, why does hydraulic systems have such competitiveness? The basic reason is the superior characteristics of fluid in a normal condition.


There are three stats of matter, gas, liquid, and solid. Gas can pass through complicated route (such as piping) since it can change its form according to the shape of the container. However, it is compressed and the volume changes when pressure is applied, and the form of energy changes (the volume decreases and the pressure increases).

Since the volume of a solid does not change even when pressure is applied, and the form of energy does not change. However, since the shape does not change, it cannot pass through complicated route (such as piping).


Liquid can pass complicated route (e.g. piping) as gas, and the volume does not change when pressure is applied as a solid. Therefore, it has both good factors of gas and a solid, and it can transmit energy effectively through a complicated route (e.g. piping) without changing the form of energy.

Studying The Past To Learn New Thing

The hydraulic press is a press which realizes high economic rationality that the device is compact and lightweight at a relatively low cost as well as the high reliability required of machinery and equipment by the hydraulic devices which makes the most of such characteristics of liquid.


SANKI SEIKO provides various high-performance hydraulic presses which optimally fuse the sophisticated hydraulic technology which has been accumulated by untiring technical development since the foundation of the company and the latest electronic technology.


SANKI SEIKO provides various high-performance hydraulic presses which optimally fuse the sophisticated hydraulic technology which has been accumulated by untiring technical development since the foundation of the company and the latest electronic technology.

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