Recent Blogs
Pawl Lift: Two-Pawl Rack Indexing Sequence
Explore a two-pawl rack lift. Calculate ideal indexed travel and elapsed time from rack pitch, completed raising strokes and stroke cadence.
Skip Jack Mechanism Explained: How the Ratchet and Pawl Lifting Jack Works, Parts and Uses
Skip Jack mechanism explained — how the ratchet-and-pawl lifting jack works, where road crews use it, formulas, worked example, and failure modes.
Ratchet Lift Mechanism Explained: How It Works, Diagram, Parts, Formula and Uses
Explore a ratchet lift’s drive, load-transfer and return phases. Compare ideal handle effort, step height and load work with an interactive calculator.