Compact seals seal rods and cylinders up to 400 bar, made of NBR or PU, often with a support ring for increased durability.

Compact seals are primarily made from fabric-reinforced NBR or polyurethane (PU). Various types of fabrics and rubbers are used. Seals made from a combination of soft, elastic materials and hard, wired materials can serve multiple purposes. Compact seals and their elastic components release oil at lower pressures and can withstand up to 250 bar of working pressure. These seals are manufactured as single-piece units or fabric-reinforced seals and are used for rods or unilaterally operating cylinders.

They can also be made from polyurethane (PU-AU) with an NBR support ring, allowing them to handle pressures up to 400 bar (examples include those with POM anti-extrusion rings).

Compact seals provide effective sealing even at lower pressures. When determining the installation groove, it is important to account for radial compression of the seals during installation, which increases their length. Adequate space in the groove must be ensured; otherwise, the required sealing pressure cannot be achieved.

Some compact seals come with support or anti-extrusion rings.