Airtac MARU Stainless Steel Mini Cylinder MARU25X25S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X25S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 25mm 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.
- BoreØ25 mm
- Stroke25 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU25X25S
A compact pusher for tight envelopes: the MARU25X25S pairs a 25 mm bore with a 25 mm stroke in a riveted round-body stainless-steel barrel, with the up-mount bracket rolled into the front cover so one bolted joint replaces a cylinder plus a separate flange. Air acts on both faces of the piston (double acting) and a variable cushion at each end is trimmed with its needle screw to kill end-of-stroke shock.
At 0.5 MPa this bore pushes 245 N, which works out to roughly 147 N of practical working force once you keep a design margin - enough to seat caps, eject small parts or lift about 12 kg vertically at a 2:1 ratio. The hard-chrome plated 10 mm rod and grease-retaining piston seals shrug off damp shop air, and the standard magnet lets CMSG / DMSG / EMSG switches clamp on anywhere along the barrel for stroke-end signals.
Airtac MARU Stainless Steel Mini Cylinder MARU25X25S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X25S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MARU Stainless Steel Mini Cylinder MARU25X25S
| 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. |
| ×25 | 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.
Where the Airtac MARU Stainless Steel Mini Cylinder MARU25X25S Is Used
Foil liner seating
A 25 mm punch stroke is exactly what a tabletop capper needs to press foil liners into cosmetic vial caps; 245 N at 0.5 MPa seats liners without crushing the plastic.
Jar kick-off lane
Use the short 25 mm stroke to flick small jars from a main conveyor onto a checkweigher spur - the 147 N working band clears a lane divider in a fraction of a second at mid-range speed.
Fixture clamp on a drill jig
Clamp small aluminium housings or brackets into a drill jig; the cushion lets the clamp land firmly on the part instead of slamming it against the jig face.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X25S the Right Cylinder?
For a 25 mm stroke this bore sits mid-range: drop to the 20 mm MAR (157 N push at 0.5 MPa) for lighter ejection tasks, or step up to the 32 mm bore (402 N) when resistance climbs past 200 N. Keep the working effort near 147 N and the cylinder will ride through supply dips without stalling. The up-bracket is part of the front cover, and I or Y rod knuckles thread onto the M10x1.25 male rod if the linkage needs to swivel. A plain cylinder does not hold position on air loss - the piston drifts - so add a rod lock if the load must stay put with the supply off.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MARU Stainless Steel Mini Cylinder MARU25X25S FAQ
At 0.5 MPa the cylinder pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those rise to 343.4 N and 288.5 N, with a theoretical ceiling of 50 kgf at 1.0 MPa. It is double acting with a variable cushion at both ends, runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um at 30-800 mm/s, uses 1/8" ports and an M10x1.25 male thread on a 10 mm rod, and works from -20 to +70 C.
No. Every MA-series cylinder leaves the factory with the piston magnet already fitted, so CMSG, DMSG or EMSG switches clamp onto the stainless barrel at any stroke position without ordering a special piston. Just check that the switch body fits inside your envelope around the short 25 mm body length.
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