Airtac MARU Stainless Steel Mini Cylinder MARU25X500S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X500S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 500mm 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
- Stroke500 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 MARU25X500S
A long-travel member of AirTAC's MA family, the MARU25X500S pairs a 25 mm bore with a full 500 mm stroke inside a riveted stainless-steel round barrel. It is double acting with a variable air cushion at both ends, and the U code means the up-mount bracket is already part of the front cover, so no separate foot or flange is bought. The piston magnet comes as standard, letting CMSG, DMSG or EMSG switches sense position anywhere along the tube.
At 0.5 MPa this bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa the push climbs to 343.4 N, a theoretical 50 kgf ceiling. For real work, budget around 147 N per cycle, which lifts roughly 12.5 kg vertically at a 2:1 margin. Running 30-800 mm/s across half a metre, the twin needle-screw cushions absorb end-of-stroke shock so the aluminium covers stay protected; supply clean air at 0.15-1.0 MPa (22-145 psi) filtered to 40 um.
Airtac MARU Stainless Steel Mini Cylinder MARU25X500S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X500S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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 MARU25X500S
| 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. |
| ×500 | 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 MARU25X500S Is Used
Reject gate on a bottling line
The 500 mm sweep clears a full lane width; 147 N of usable push at 0.5 MPa flicks off-spec bottles into the reject chute at up to 800 mm/s.
Lid lift on a bake-tray carrier
With about 12.5 kg of vertical capacity at a 2:1 margin, the up-mounted bracket raises hinged oven lids smoothly while the cushion lands the cover softly.
Sliding fixture on a machine-shop bench
A riveted stainless barrel shrugs off coolant mist that flakes painted minis, pushing a 500 mm drill-pattern jig between stations cycle after cycle.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X500S the Right Cylinder?
Need less force? A 20 mm MAR delivers 157 N push at 0.5 MPa; need more, the 32 mm bore reaches 402.2 N. Both bookend the 245.3 N this 25 mm barrel makes. Like every MA cylinder, position is not held on air loss - the rod drifts if pressure drops, so add a rod lock for fail-safe holding. The magnet is already in the piston, and the integrated top bracket bolts the body straight down; I and Y knuckles still thread onto the M10x1.25 rod.
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 MARU25X500S FAQ
At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those rise to 343.4 N and 288.5 N, with a 50 kgf theoretical maximum. It runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air, tolerates -20 to +70 C, and takes 1.5 MPa (215 psi) proof pressure. The 10 mm rod threads M10x1.25 and the air ports are 1/8".
Half a metre of exposed tube meets washdown, humidity and swarf every shift. The MAR barrel is stainless steel with a hard-chrome plated 10 mm rod, resisting corrosion far better than painted or plain aluminium mini cylinders, and the rolling-packed cover joint keeps the body sealed without extra fasteners. The standard magnet means a CMSG or DMSG switch clips on anywhere along the long travel.
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