Airtac MARU Stainless Steel Mini Cylinder MARU25X175S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X175S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MARU25X175S
MARU25X175S is AirTAC's round-body MA-series mini cylinder set up for top mounting: the U in the code means the front cover carries an up bracket, so the unit bolts flat to a machine plate without any separate foot or flange. It is double acting with a variable air cushion at each end, and it runs on filtered air at 0.15-1.0 MPa (22-145 psi) with speeds from 30-800 mm/s.
At 0.5 MPa the 25 mm bore pushes with 245 N and pulls with 206 N; at 0.7 MPa that rises to 343 N on the extend stroke. The riveted stainless barrel shrugs off washdown and damp air far better than a painted mini, and the magnet ships as standard so CMSG, DMSG or EMSG switches clip straight on. For real work, budget roughly 147 N at 0.5 MPa rather than the full 245 N rating - that margin keeps the 175 mm stroke smooth over millions of cycles.
Airtac MARU Stainless Steel Mini Cylinder MARU25X175S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X175S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MARU25X175S
| 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. |
| ×175 | 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 MARU25X175S Is Used
Sorting gate actuator
Swings a 6 kg divert gate on a packaging line conveyor, using the 175 mm stroke to clear two lanes while the cushion takes the slam out of each swing.
Sample lift in a lab indexer
Raises a 12 kg sample tray vertically between test stations; at 0.5 MPa the derated lift capacity of about 12 kg matches the tray with a 2:1 margin.
Ejector on a small stamping die
Kicks finished blanks off a benchtop die after each hit; 245 N of push at 0.5 MPa clears the part and the end cushion keeps the die from ringing.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X175S the Right Cylinder?
A 175 mm stroke at this force class suits sliding gates, small presses and indexing fixtures. Step down to a 20 mm bore (157 N push at 0.5 MPa) if the load is under about 90 N, or step up to a 32 mm bore (402 N push at 0.5 MPa) for heavier clamping. The MAR's integrated up bracket replaces a separate mounting flange; I and Y rod knuckles still thread onto the 10 mm hard-chrome rod (M10x1.25). Note that the cylinder does not lock position when air is lost - the rod will drift, so add a rod lock if the load must stay put. If the 175 mm stroke swings a load off-axis, guide it externally; the 10 mm rod is not a side-load bearing.
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 MARU25X175S FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa those figures rise to 343.4 N and 288.5 N. The theoretical maximum at 1.0 MPa is 50 kgf. Air supply is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed runs 30-800 mm/s.
The magnet is already built in - every MA cylinder ships with one, so CMSG, DMSG or EMSG reed or electronic switches drop onto the barrel with no special-order piston. Adjust the cushion needle screws on first run to soften the ends of the 175 mm stroke.
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