Airtac MARU Stainless Steel Mini Cylinder MARU25X225S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X225S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 225mm 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
- Stroke225 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 MARU25X225S
The MARU25X225S pairs a 225 mm stroke with the 25 mm bore of AirTAC's MAR series, delivering 245.3 N of push at 0.5 MPa and 343.4 N at 0.7 MPa. This is a double acting cylinder with an adjustable air cushion at each end - turn the needle screws on first commissioning to soften both stroke ends. Its front cover integrates a top (up) mounting bracket, so the cylinder bolts directly onto the machine without any add-on foot.
A riveted stainless barrel with a 10 mm hard-chrome rod copes with humid air and light washdown where painted mini cylinders rust. The magnet ships standard, so CMSG, DMSG and EMSG switches drop on for position feedback. For sizing, halve the rating: this bore lifts about 12 kg vertically with a 2:1 margin, from 25 kgf of theoretical lift at 0.5 MPa.
Airtac MARU Stainless Steel Mini Cylinder MARU25X225S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X225S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 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 MARU25X225S
| 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. |
| ×225 | 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 MARU25X225S Is Used
Stopper gate on an assembly conveyor
Stopping a stream of housings takes well under the 245.3 N this bore develops at 0.5 MPa, and the 225 mm stroke lifts the gate fully clear of the product flow when released.
Sample tray indexer in a lab automation line
The 206.1 N return force retracts the indexing pawl cleanly between microplate trays, and the stainless barrel tolerates the wipe-down regime around analytical instruments.
Sliding shield on a machine guard
A 225 mm travel covers the guard window, and the adjustable cushion at each end keeps the sliding panel from slamming into its stops at speed.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X225S the Right Cylinder?
Choose by force at 0.5 MPa - 157.0 N (20 mm bore), 245.3 N push and 206.1 N pull (this 25 mm bore), 402.2 N (32 mm bore) - and derate for friction. A plain MAR will not hold position when air is lost; the piston drifts with the load, so spec a rod lock for dwell-critical fixtures. The factory-fitted top bracket and standard magnet (CMSG / DMSG / EMSG) simplify mounting and sensing, and the M10x1.25 male rod thread accepts I and Y knuckles.
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 MARU25X225S FAQ
On 0.5 MPa air this cylinder pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push reaches 343.4 N, and the ceiling is 50 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) and keep rod speed between 30-800 mm/s.
Yes - the variable air cushion at both ends is set by needle screws, so spend a minute on commissioning to dial the deceleration to your load and speed. With cushioning tuned you can run up to 800 mm/s or move heavier loads without hammering the covers at stroke end.
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