Propeller upgrading involves enhancing an existing propeller's performance, efficiency, or materials without full replacement. Propeller replacement entails removing the old propeller and installing a new one to improve performance or address damage. Both processes aim to optimize propulsion systems for better operational outcomes.

Size: Typically ranges from 0.5m to 6m in diameter, depending on vessel type.

Grade: Marine-grade alloys (e.g., NiAl bronze, stainless steel) or composite materials.

Viscosity: N/A (propellers operate in water, viscosity depends on fluid medium).

Buoyancy: Neutral or slightly negative buoyancy to minimize drag and maintain stability.

Material: Common materials include bronze, stainless steel, aluminum, or carbon fiber composites.

Blade Count: 3 to 6 blades, optimized for efficiency and thrust.

Pitch: Adjustable or fixed, tailored to vessel speed and engine power.

Surface Finish: Polished or coated to reduce friction and cavitation.

Weight: Varies by size and material, typically 50kg to 1000kg.

Corrosion Resistance: High, with protective coatings or anodes for saltwater use.

Balancing: Precision-balanced to minimize vibration and wear.