A slider is two or more parts that move linearly past each other — a carriage running along a rail or track. The whole experience is one motion repeated: slide, stop, reset. A good slider makes that loop disappear into the hand. How the parts are held together and stopped is what splits sliders into types — and not all of them use magnets.

Three constructions

• Mechanical. No magnets in the action. A flange or lip captures the plates so they can’t pull apart, and limit posts or stops cap the travel and keep the carriage from sliding out the end. The constraint is purely physical — geometry doing the work, metal stopping metal.
• Magnetic. Magnets drive the action, set the detents, and provide the return. The catch and snap you feel is magnetic timing layered on top of the rail, not just a mechanical stop.
• Floating. Magnet combinations on each plate let the plates float against one another rather than ride a fixed track, opening up manipulation and tricks. A category of its own — earns a dedicated deep-dive.

Common object types

Bar sliders, modular shell sliders, dual-track and bidirectional sliders, coin-format sliders.

What affects feel

Rail and track geometry, machining tolerance between carriage and channel, surface finish on the contact faces, and mass distribution. On magnetic sliders, magnet spacing and strength dominate the catch and return; on mechanical sliders, the fit of the flange and the precision of the limit stops set the end-feel. Tight tolerance with poor magnet spacing feels dead; loose tolerance feels rattly regardless of type.

What affects sound

Material of the contact surfaces, the impact at the stops or the snap of a magnetic detent, internal air space, and finish. Metal-on-metal rings; PEI and polymer surfaces mute it.

What can go wrong

Gritty travel from debris or poor finish in the track, side-to-side play from loose tolerance, and detents or stops that feel mushy rather than defined. On magnetic sliders, timing that catches early or overshoots; on mechanical sliders, worn stops or a loose flange that lets the plates shift.

Collector terms

Click, detent, end-stop, travel, knock, magnet timing, floating, flange, limit post.

Related

Detent mechanism, magnetic mechanism, titanium, stainless steel, stonewashed finish.