Airtac MARU Stainless Steel Mini Cylinder MARU25X240S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X240S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 240mm 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
- Stroke240 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 MARU25X240S
A 240 mm travel in a compact 25 mm bore makes the MARU25X240S a good fit for long-reach push and lift jobs in tight machine frames. Expect 245.3 N of push at 0.5 MPa, rising to 343.4 N at 0.7 MPa, with 206.1 N available on the return. Double acting by design, it carries a variable cushion at both ends and an up (top) mounting bracket formed into the front cover - the mount is part of the cylinder, not an accessory.
The round stainless barrel resists corrosion in wet or food-adjacent areas, and the hard-chrome plated 10 mm rod keeps seal wear low over long duty cycles. Every MAR ships with its magnet already fitted, so CMSG, DMSG or EMSG switches need no special piston. Budget about 147 N for the actual workload at 0.5 MPa - roughly 60 percent of rated push - and the bore will raise a 12 kg load vertically with a comfortable margin.
Airtac MARU Stainless Steel Mini Cylinder MARU25X240S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X240S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 240 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 MARU25X240S
| 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. |
| ×240 | 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 MARU25X240S Is Used
Flap press-down on a case packer outfeed
Closing hot-melt flaps needs only a fraction of the 245.3 N push available, and the 240 mm stroke accommodates tall or deep carton sizes on the same station.
Deflector blade on a recycling sorter
Dusty, damp sorting lines suit the stainless tube and chrome rod; 245.3 N at 0.5 MPa flips the blade against a stream of containers without straining the bore.
Bin diverter in a pick-module conveyor
The integrated top bracket fixes the cylinder above the lane, and a DMSG switch on the standard magnet tells the warehouse system each divert completed.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X240S the Right Cylinder?
Work down the 0.5 MPa ladder before committing: 157.0 N at 20 mm, 245.3 N push / 206.1 N pull at this bore, 402.2 N at 32 mm. Note that nothing in a standard MAR locks the rod - if air drops, the piston follows the load - so add a rod lock where a position must be kept. With 240 mm of travel on a 10 mm rod, avoid side loading and support the tooling; the integrated up-mount bracket and the standard magnet for CMSG / DMSG / EMSG switches round out the order.
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 MARU25X240S FAQ
Figures for the 25 mm bore: 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push at 0.7 MPa, 50 kgf theoretical max at 1.0 MPa. Pressure window 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Any time. Every MAR cylinder carries a piston magnet as standard, so CMSG, DMSG and EMSG switch models clip onto the barrel and sense end-of-stroke or mid-stroke positions without a special-order piston or a magnet retrofit.
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