Recent Blogs
Lever Windlass Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Compare the ideal lever-to-drum radius ratio and reciprocal hand-to-rope travel. The animation shows rope take-up and the holding pawl during handle reset.
Toggle Stump Puller: Historical Arrangement and Ideal Toggle Ratios
Explore a historical stump-puller subject with an abstract two-link toggle model. Calculate ideal force and travel ratios, without predicting chain load or capacity.
Worm-gear Winch: How It Works, Parts and Drum-Rotation Calculator
Explore worm-gear winch rotation. Calculate reduction ratio and ideal drum turns from wheel teeth, worm starts and crank turns; no lifting rating is calculated.
Crab Winch Mechanism Explained: How a Double-Reduction Hand Winch Works, Parts and Uses
Explore a double-reduction hand winch. Calculate both gear-stage ratios and drum speed, and see why hand-force advantage also depends on handle and drum radii.