Suction valve for the return stroke also offers servo control
![](fileadmin/user_upload/Freiformschmiedepresse/Schmiedepressen_2024/Venturiduese.jpg)
A simple suction valve ensures that the piston moves back quickly to empty the water from the cylinder.
Cylinders
All cylinders for which we keep the thin-walled, rust-free inner tubes in stock have a stroke length of 22 cm. The inner diameters of the cylinder tubes: 118 mm; 147 mm: 200 mm and 250 mm. Our cylinders are designed for pressures up to 300 bar. This depends on the thick-walled tubes used. The pressure load limit can also be increased on request.