The CFM Steel Spring Isolator type UbPL is the standard model without level element. We offer versions with and without integrated viscous damper. CFM Schiller manufactures the type UbPL in three different natural frequency ranges: 1.75 Hz, 2.2 Hz, and 3 Hz. A special model with 2.5 Hz is also available. The steel spring isolator type UbPL can be operated in a load capacity range of up to 179 kN per isolator. Optionally, suitable compensation sheets for leveling purposes are supplied.