A cylinder pushing a load at 100 PSI doesn't stop on its own — it stops when the rod hits the cylinder cap, hard. On a low-cycle low-load machine that's fine; on high-cycle production work it destroys the cylinder, the load, the mounting bracket, and the operator's hearing inside…
Tap any type to jump to its page. The Decision Guide further down asks three questions that funnel the spec to one of these.
A hydraulic damper that turns end-of-stroke kinetic energy into heat over the last 10-30 mm of travel — the deceleration half of Motion Control.
An operations-mode choice, not a brand choice. Fixed load and speed → adjustable; variable part mix → self-compensating.
Get the Nm/cycle number before picking the variant. Undersize and it dies in weeks; oversize and the cylinder still slams.
Skip it on a high-cycle retrofit and the customer is back in three months with broken brackets and a destroyed cylinder cap.
Every cylinder past that threshold gets a shock on the quote. The self-compensating compromise burns out too fast on a dedicated line.
Distributor-facing reading. The trade-off column is the one that closes the loop — every type buys something and gives something up. Knowing what each type costs you is how the right one gets on the quote without a callback.
Reading the brand bench column — the bar shows how many of SPC's tier slots (Industry Leader · Emerging · Economical · adjacent) carry an option at that product type. A deep bench means a price-driven and a spec-driven option both close cleanly; a narrow bench means the available brands map closely to the technical requirements and the comparison stops being a tier choice.
Draw a line from the customer's answer at the top to the type name at the bottom. This is the page distributors screenshot and send to a customer the day before a quote call — so the customer comes prepared with the answers, and the call is about the brand and the budget, not the basics.
These two products aren't a brand-choice and they aren't a tier-choice — they're an operations-mode choice. The question above is the only thing that decides between them. The other shock-absorber conversation that comes up on every quote is sizing: energy capacity (Nm/cycle) has to cover ½mv² plus any drive force still applied at end-of-stroke. Undersizing destroys the shock in weeks; oversizing decelerates too slowly and the cylinder still slams. Get the energy number first, then pick the variant.
The shock absorber is what keeps the cylinder from beating itself — and the machine — apart. Skip it and the cylinder breaks; size it wrong and the shock breaks. Get both right and neither one disappears.
If the customer answers most of these at the first call, the second call is the quote. If they can't answer any, the shock absorbers are rarely the only spec gap — flag it and push for a site walk.
Motion Control is the layer that turns raw actuator force into controlled, repeatable, machine-safe motion. A cylinder on its own slams from full retract to full extend as fast as the air will move it — too fast to position, too violent to last. This layer tames it: speed controllers meter the exhaust to set stroke speed, flow controls and check valves shape the air path and hold load, and shock absorbers catch the moving mass at the end of every stroke so the kinetic energy goes into a damper instead of the machine frame. It mounts right at the actuator — the speed control threads into the cylinder port, the shock absorber bolts at the hard stop — which is why it reads as point-of-use, not as part of the valve logic upstream. Get it wrong and the machine is either too slow to make rate or beats itself apart in months; get it right and a high-cycle actuator runs smooth and quiet for the life of the line.
The metering half of Motion Control — speed controllers set how fast the cylinder arrives at the shock, which sets the impact velocity the shock has to absorb.
→Adjustable and self-compensating shock absorbers that catch the cylinder at end of stroke — what keeps the machine from beating itself apart at speed.
Adjacent Actuation layer — the linear-motion workhorse the shock catches at end of stroke. Bore, stroke, mass, and velocity set the shock energy capacity.
→Tell us the end-use, the rough flow, and what climate the unit would sit in. We'll come back with a configured quote — the right type, the right tier, and the upstream gear the warranty assumes.
—. We reply within one business day with pricing, lead-time, and configured parts.
