Airtac MARU Stainless Steel Mini Cylinder MARU32X25S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU32X25S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø32mm bore and 25mm 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.
- BoreØ32 mm
- Stroke25 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 MARU32X25S
Short travel, full muscle: the MARU32X25S moves just 25 mm yet pushes 402.2 N at 0.5 MPa through its 32 mm bore. AirTAC rivets the aluminium end covers onto a stainless round barrel, a body style that tolerates splash and humidity in food and packaging plants. It is double acting with a variable cushion at each end and runs on 0.15-1.0 MPa (22-145 psi).
As a lift actuator, the bore theoretically raises about 41 kg; with a 2:1 margin it handles 20 kg payloads cycle after cycle. A 25 mm stroke suits clamping, pressing and eject jobs where long rods are unnecessary, and the short rod resists side load far better than the 225-250 mm versions. The up mount is moulded into the front cover, and the standard magnet accepts CMSG, DMSG or EMSG switches.
Airtac MARU Stainless Steel Mini Cylinder MARU32X25S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU32X25S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MARU32X25S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 32 | Bore size in mm. |
| ×25 | 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 MARU32X25S Is Used
Bearing pressing in assembly cells
Pressing sealed bearings into pump housings on a 20 kg fixture; 402.2 N of push force and a short, rigid 25 mm rod keep the press square.
Pneumatic clamps on CNC fixtures
Edge and swing clamps on machining centres needing a quick 25 mm clamp move with about 241 N of working force.
Stamping die part kickers
Ejecting small brackets from a stamping die; the 25 mm kick clears the part without long rod overhang.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU32X25S the Right Cylinder?
Match the bore, not just the stroke: the 25 mm MAR makes 245.3 N at 0.5 MPa for light clamps, while the 40 mm bore jumps to 628.3 N for heavy pressing. This 25 mm stroke sits far below the 500 mm standard limit, so it is a stock length. The 1/8" port and M10x1.25 rod thread cover most hook-ups. Air loss will let the rod creep under load - the cushion only softens the stroke end - so add a rod lock where holding matters.
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 MARU32X25S FAQ
At 0.5 MPa the cylinder pushes 402.2 N and pulls 345.6 N; at 0.7 MPa those become 563.0 N and 483.8 N. Peak theoretical force is 82 kgf at 1.0 MPa. Bore 32 mm, rod 12 mm, port 1/8", stroke 25 mm, magnet built in.
No - 25 mm is well inside the 500 mm maximum standard stroke for the 32 mm bore, so it ships as a catalogue length. Only strokes beyond that limit are made to order.
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