MTM400 is a high-performance mechanical seal for ship propeller shafts, designed by MICROTEM for naval and industrial use. Available in diameters from 50 mm to 500 mm, it features advanced systems like DEDaS® (Double Elastic Damping System) for misalignment and vibration compensation up to 60 mm RMS / 60 g, SPS® (Spring Protection System) to isolate springs from saline environments, and 4S® (Secondary Seal Safety System) for emergency sealing. The LSA® system adapts to hull imperfections, while the optional WaterShield® allows maintenance without dry docking. FEM simulations and premium materials (e.g., AISI 316, Bronze B14, Silicon Carbide) ensure durability and minimal wear.