
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X15S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 15mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
A compact double-acting cylinder with a variable air cushion and its own up-facing top bracket, the MARU25X15S carries a 25 mm bore in a stainless round barrel riveted to aluminium covers. The hard-chrome plated 10 mm rod shrugs off washdown and damp shop air, so it outlasts painted-steel minis in food, outdoor or rinse-down spots.
At 0.5 MPa it pushes 245 N and pulls 206 N; at 0.7 MPa that rises to 343 N. For real work budget roughly 147 N so seals and side loads stay kind, and the same figure means the rod lifts about 12 kg vertically with a 2:1 margin. The built-in magnet is standard, so CMSG, DMSG or EMSG switches clip straight on.
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X15S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 25 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
On a bottling line a 15 mm jab nudges tilted caps off the conveyor at speed; the stainless barrel tolerates the daily hose-down.
Clamp small brackets in a drill fixture and confirm with a DMSG switch; 245 N at 0.5 MPa is ample for light aluminium parts.
Flip a lightweight guide gate between two chute lanes; the short stroke keeps cycle times tight at up to 800 mm/s.
Need less force? The 20 mm MAR turns about 157 N at 0.5 MPa; step to a 32 mm bore for 402 N. With only 15 mm of travel the cushions still deserve a first-run needle tweak. Mind that the piston drifts when air is lost - a rod lock is the fix where holding matters. The magnet is standard, ports are 1/8", and an I or Y knuckle fits the M10x1.25 rod if your linkage needs one.
Quick checklist
At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N. At 0.7 MPa it reaches 343.4 N push and 288.5 N pull. The theoretical maximum at 1.0 MPa is 50.0 kgf. Pressure range is 0.15-1.0 MPa (22-145 psi) and speed runs 30-800 mm/s.
Every unit ships with a magnet already in the piston, so CMSG, DMSG and EMSG switches mount without a special order. The top bracket is part of the riveted front cover - bolt it straight to the machine plate; no separate foot or flange is needed. Air port is 1/8", rod thread M10x1.25.
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Covers non-human-caused product damage.
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