Pneumatic Seals Manufacturers, Suppliers & Exporters In India. Pneumatic seals are essential components used in pneumatic systems to prevent air or gas leakage and maintain the efficiency of the system. These seals are designed to work in applications where compressed air or gas is used to generate force or movement. Pneumatic seals are designed to accommodate dynamic movements in pneumatic cylinders. The design may include lip seals, U-cup seals, or other profiles, depending on the specific application requirements.