The CSSN mechanical seal is a single-end, multi-spring cartridge seal with an unbalanced design. It supports bidirectional shaft rotation and uses shaft sleeve transmission for reliable torque transfer. The seal is suitable for pulp pumps, slurry pumps, pressure screens, and other industrial process equipment.
The CSSN features helical coil springs that maintain consistent loading on the sealing faces throughout the service life. In addition, all springs are isolated from the process medium. This design helps prevent spring clogging and reduces the risk of losing seal face load when handling pulp, slurry, or other demanding fluids.
Drive screws clamp directly onto the shaft or sleeve. As a result, the design minimizes transmission losses and provides reliable torque transfer. The seal also uses a modular sealing structure, which allows different seal face and elastomer combinations for specific operating conditions.
The CSSN mechanical seal is widely used in pulp and paper equipment, slurry pumps, pressure screens, and flue gas desulfurization systems. It also serves chemical process pumps, power plants, mining equipment, oil refineries, alumina plants, food processing equipment, and pharmaceutical machinery.
The CSSN provides a replacement solution for AESSEAL CSSN mechanical seals. It can also be supplied for applications where an equivalent CSSN cartridge mechanical seal is required. Contact us for CSSN seal dimensions, material options, and application-specific configurations.








