Recent Blogs
Three-throw Bellows Mechanism Explained: How It Works, Parts, Formula, and Heritage Uses
Three-throw bellows deliver continuous low-pressure air for foundry cupolas, pipe organs, and forge work. See how the triple-chamber design works, with worked numbers.
Smith's Circular Bellows Mechanism: How the Double-Acting Forge Bellows Works, Parts and Uses
Smith's Circular Bellows delivers continuous airflow for forge work. Learn how the dual-chamber design works, sizing math, and real workshop examples.