The Oria air springs consist of a flexible elastomer rubber body with nylon fabric reinforcement, and rustproof plates with an air inlet and mounting blind nuts. The Oria rubber bellows can be used both as vibration isolators and rubber actuators. The Oria air springs absorb up to 99% of the unwanted vibrations avoiding further damages to the machines and metallic structures. At the same time, they reduce noise level while production in paper mills.
The Oria rubber actuators have been developed to replace the traditional air or hydraulic cylinders. Due to their design, the air pressure inside the bellow reduces the upward stroke, thrust, tension, angular movements or fast anchoring movements.
The air spring is located in different areas of the paper production process. Many of them are applied to provide the proper alignment of the bandage that carries the paper paste. The air bellow works as an actuator tightening or compressing depending on the bandage position if the paper machine control systems identify that there is a misalignment.
Frequently, the air actuator might be exposed aggressive environmental conditions, as oil, water atmosphere, etc. For this reason, different type of rubber composition and metal parts are recommended to ensure the air spring long-life and reduce maintenance costs.
The rubber pneumatic cylinder is placed in the middle/end of the paper producing process most of the times. The aim of this application consists of extracting all the humidity (water / fluids) that contains the paper paste, in order to transform it to solid paper. This type of actuator acts as a cylinder pressing the rollers located in the product line. Therefore, the paper liquid is extracted and the paper paste becomes more solid and uniform.
The air actuator works once again as a pneumatic cylinder and it makes constant pressure to tighten the web that carries the paper liquid. By this way, the paper paste is not wasted and follows the path correctly, avoiding misalignment.
In case of being applied inside the drying process (more than 70 ºC), normally high temperature resistance air bellows should be applied. In case of not being necessary, standard rubber might be used as an alternative.