The Switch Launches PMM850M Permanent Magnet Machine

Why It Matters

The PMM850M lets cost‑constrained ships achieve the efficiency gains of permanent‑magnet technology, supporting tighter emission and noise regulations while lowering operating expenses. Its compact footprint expands electrification opportunities for narrow‑hull and coastal vessels, accelerating industry decarbonisation.

Key Takeaways

• 500 kW‑1.5 MW power range fills portfolio gap.
• Up to 4% higher efficiency versus induction machines.
• Water‑jacket cooling eliminates external fans, reduces footprint.
• Brushless design cuts maintenance and noise levels.
• First deliveries slated for 2027 after 2026 testing.

Pulse Analysis

Marine electrification is moving beyond large tankers to smaller bulk carriers and coastal traders, creating demand for power solutions that fit tight engine‑room spaces. The Switch’s PMM850M answers this need with a compact permanent‑magnet design that delivers 2‑4% higher efficiency than traditional induction machines, especially at partial loads where most voyages operate. By leveraging a water‑jacket cooling system, the machine removes external fans and heat exchangers, shrinking the installation envelope and simplifying vessel integration.

Beyond size, the PMM850M’s brushless architecture reduces maintenance cycles and eliminates the vibration and acoustic signatures associated with brushed motors. The modular axial length allows shipbuilders to tailor the machine to exact power requirements, avoiding over‑specification and further cutting capital costs. Its quiet operation also helps meet increasingly strict airborne and underwater noise regulations, a growing concern for ports and coastal communities.

The launch is strategically timed for markets like Japan, where narrow‑hull short‑sea vessels dominate regional trade. With deliveries slated for 2027 after a 2026 testing phase, the PMM850M positions The Switch to capture a segment of the maritime market that has been underserved by larger PM offerings. As global shipping regulations tighten on CO₂ and NOx emissions, the machine’s fuel‑saving efficiency and lower emissions profile provide a clear pathway for operators to meet compliance while improving bottom‑line profitability.