Airtac MARU Stainless Steel Mini Cylinder MARU25X300S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X300S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 300mm 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
- Stroke300 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 MARU25X300S
A 300 mm stroke in a 25 mm bore makes the MARU25X300S a slim pusher for machines that reach across a conveyor or index table. It is double acting with a variable air cushion at both ends, and the top (U) mounting bracket is riveted into the body itself, so no separate foot or flange sits in your bill of materials. At 0.5 MPa the piston pushes 245 N and pulls 206 N, with needle-adjustable cushions quieting both landings as the rod runs anywhere in the 30-800 mm/s band.
Working at 0.5 MPa, treat roughly 147 N as the honest continuous load rather than the full 245 N rating, enough to slide a filled carton along a guide rail. The stainless barrel and the 20 um hard-chrome plated rod also shrug off washdown mist, a real edge over painted minis in damp food plants. Every unit ships with the magnet built in, so CMSG / DMSG / EMSG switches drop straight on, and it runs on filtered air at 0.15-1.0 MPa (22-145 psi).
Airtac MARU Stainless Steel Mini Cylinder MARU25X300S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X300S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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 MARU25X300S
| 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. |
| ×300 | 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 MARU25X300S Is Used
Carton rejection on packaging lines
With 300 mm of reach and about 147 N of usable push at 0.5 MPa, it shoves a misprinted carton off the belt and retracts clear before the next pack arrives.
Rotary index table advance
A 245 N push at 0.5 MPa advances the pawl that indexes a 12-position dial plate 300 mm per cycle, with the cushion quieting each stop at 600 mm/s.
Sample tray handling in a lab analyzer
The stainless barrel tolerates the humid, lightly washed corner of a clinical analyzer, sliding a 96-well sample tray 300 mm under the pipetting head.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X300S the Right Cylinder?
Size check: the 20 mm bore MARU20X300S manages 157 N push at 0.5 MPa, while stepping up to the 32 mm MARU32X300S buys you 402 N. If your load must hold position during air loss, remember a plain MAR drifts - add a rod lock rather than relying on the cushion, which only softens the stroke end. The 300 mm rod is a long span for side loads, so guide the workpiece externally and let the M10x1.25 rod thread take axial force only; I / Y knuckles fit the 10 mm rod. Use the standard magnet with CMSG / DMSG / EMSG switches for end-of-stroke confirmation.
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 MARU25X300S FAQ
It is a 25 mm bore, 300 mm stroke double-acting cylinder. Push force is 245 N at 0.5 MPa and 343 N at 0.7 MPa; pull force is 206 N at 0.5 MPa and 289 N at 0.7 MPa. The theoretical maximum is 50 kgf at 1.0 MPa. The rod is 10 mm with an M10x1.25 male thread, air ports are 1/8", and standard strokes on this bore run to 500 mm.
No. Every MA-series cylinder, including the MARU25X300S, ships with the magnet built into the piston, so CMSG, DMSG or EMSG switches snap onto the barrel for end-of-stroke or intermediate sensing. Operating range is 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um.
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