Airtac MARU Stainless Steel Mini Cylinder MARU25X275S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X275S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 275mm 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
- Stroke275 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 MARU25X275S
When the cycle calls for nearly 300 mm of travel from a small bore, the MARU25X275S answers with 275 mm of stroke inside a riveted stainless round barrel. The front cover carries its own top bracket, air feeds the piston in both directions, and a variable cushion at each end is turned in with its needle screw until the stroke stops quietly.
Rated at 245 N push at 0.5 MPa, plan the real job around 147 N of that figure, which corresponds to lifting about 12 kg vertically with a 2:1 margin. A 10 mm hard-chrome rod keeps the load aligned, while the stainless tube and aluminium covers stand up to humid or outdoor air better than painted minis. Stroke position is readable at any point thanks to the standard magnet working with CMSG / DMSG / EMSG switches.
Airtac MARU Stainless Steel Mini Cylinder MARU25X275S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X275S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 275 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 MARU25X275S
| 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. |
| ×275 | 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 MARU25X275S Is Used
Sleeve pusher on a print stacker
Eject printed cardboard sleeves from a stacker station one by one; the 275 mm stroke clears a full pile width while 245 N of push handles a snug stack.
Lab sieve tray ejector
Slide test trays in and out of a vibrating sieve cabinet across the full 275 mm reach, with the standard magnet signaling both end positions to the controller.
Pick-lane slide gate
Push a slide gate across a 275 mm opening in a small pick module; the integrated top bracket bolts the cylinder to the lane frame without buying a flange kit.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X275S the Right Cylinder?
Size against neighbours at the same pressure: a 20 mm MAR delivers 157 N at 0.5 MPa and a 32 mm bore reaches 402 N, while this 25 mm barrel offers 245 N - pick the one whose working band, near 147 N here, covers your load. Over a 275 mm stroke, support the load on its own guideways; long unsupported side thrust will bend a 10 mm rod. Remember the cushion only damps the stroke ends - on air failure the rod simply drifts, so use a rod lock where holding matters. Mounting is built into the front cover, and switch magnets come standard.
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 MARU25X275S FAQ
Push is 245.3 N and pull 206.1 N at 0.5 MPa; raise the supply to 0.7 MPa and you get 343.4 N push and 288.5 N pull; the theoretical limit is 50 kgf at 1.0 MPa. Other constants: 25 mm bore, 10 mm rod with M10x1.25 thread, 1/8" ports, a 0.15-1.0 MPa (22-145 psi) operating band, speeds of 30-800 mm/s, and -20 to +70 C.
Each end has a variable air cushion with its own needle screw. On commissioning, start with the needles partly open, run the cycle at working speed, then close them gradually until the end-of-stroke thud disappears. Set correctly, the 25 mm piston stops its load quietly across the full 275 mm stroke without hammering the aluminium covers.
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