Buyers fixate on mesh and color and ignore the mechanism — the part that actually controls how the chair moves. A mismatch makes an expensive chair feel wrong. Here is the mechanism lineup in plain terms.
Butterfly / trapeze: the basic mechanism
The entry mechanism links seat and back with limited, fixed recline. Cheap, durable, few parts — fine for visitor and simple task chairs where users don’t recline much. We fit synchro/butterfly/multi-lock mechanisms by chair duty; tell us the use case and we spec the right one.
Synchro: the office workhorse
Synchro links seat and back angle so both move together in a natural ratio as you recline — the standard for ergonomic task chairs. It’s the sweet spot of feel and cost. Pair it with the right armrest class for the duty.
Multi-lock: control for executive use
Multi-lock lets users fix the back at any angle, not just a few detents. More control for executive and 24/7 chairs, at a higher cost and more parts to QC. We fit synchro/butterfly/multi-lock mechanisms by chair duty; tell us the use case and we spec the right one. See our spec-sheet guide for the rest of the ergonomic picture.
How to spec the mechanism by duty
Visitor/simple → butterfly. General office → synchro. Executive/24/7 → multi-lock. Match to price and use; over-spec adds cost nobody asked for, under-spec loses the sale. The mechanism also shows up in total cost — our cost breakdown places it. We fit synchro/butterfly/multi-lock mechanisms by chair duty; tell us the use case and we spec the right one.
Frequently Asked Questions
Which mechanism for a task chair? Synchro — natural recline, best feel/cost for general office use.
Is multi-lock worth the cost? For executive or 24/7 use, yes; for standard task chairs, synchro is the sane choice. We fit synchro/butterfly/multi-lock mechanisms by chair duty; tell us the use case and we spec the right one.
Need the exact numbers for your project?
The figures above are industry baselines. For a real quote — loading count for your specific model, MOQ, lead time and certifications for your market — contact our sourcing team with your target specs.