Difference between WP cast iron turbine reducer and NMRV worm gear reducer

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WP Series vs NMRV Series – Cast Iron or Aluminum Alloy?

When selecting a worm gear reducer, the choice between WP series and NMRV series often comes down to your operating environment and load requirements

Key Differences

Feature	WP Series	NMRV Series
Housing	Cast iron	Aluminum alloy
Strength	Higher, for heavy loads	Moderate, for light-medium loads
Weight	Heavier, more stable	Lightweight, easy to handle
Environment	Harsh, demanding	General industrial
Heat Dissipation	Excellent	Superior
Cost	Cost-effective	Higher

When to Choose WP Series

Choose WP series for:

Heavy-duty applications with high torque requirements

Harsh environments with dust, moisture, or temperature extremes

Mining, metallurgy, and heavy material handling

Applications requiring maximum durability and stability

When to Choose NMRV Series

Choose NMRV series for lightweight automation, packaging machinery, and applications where weight and compactness are priorities