The significance of the presented material stems from the observation that during the conventional process of cone-shaped shell cumulation, a cumulative solid jet forms. However, due to the steep velocity gradient between adjacent segments of the jet, it begins to break apart into distinct fragments, disrupting its continuity. Transitioning to cylindrical cumulation offers one potential solution to reduce this velocity gradient. This study provides an overview of experimental investigations into cylindrical cumulation techniques. The convergence of shell material toward the axis for cylindrical cumulative charges was justified using both hydrodynamic theory and numerical simulations, yielding consistent results. Furthermore, numerical modeling revealed that a sharp rise in heat release—manifested as an increase in temperature at the collision point—is crucial for forming the cumulative jet. To regulate the temperature within the collision zone, a modified design featuring a cylindrical cumulative charge with an added “cold” liner—a thin-walled niobium tube—was proposed. Numerical simulations confirmed that this additional component effectively lowers the collision temperature and mitigates its fluctuations during jet formation, thereby decreasing the velocity gradient and prolonging the lifespan of the solid cumulative jet.