A solid-cast pigging system, which has the flexibility and easy handling of a foam pig, coupled with the ruggedness and excellent sealing capabilities of a steel pig, prove very efficient as general purpose pigs for batching, displacement and routine operations. With the addition of brushes, the solid-cast pigging system can also be used for line cleaning type applications. This product is able to negotiate tight-radius bends as well as varying internal valve size and pipe diameters. Various solid-cast pigging system configurations are available, including spherical, cup-type and disc-type.