Airtac MARU Stainless Steel Mini Cylinder MARU25X165S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X165S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 165mm 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
- Stroke165 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 MARU25X165S
With its mounting bracket already rolled into the front cover, the MARU25X165S bolts flat against a machine plate and starts pushing: 245 N extend, 206 N retract at 0.5 MPa over a 165 mm stroke. The action is double-acting, and needle-valve air cushions tame both stroke ends.
The round stainless tube and the 20 um hard-chrome plating on the 10 mm rod stand up to coolant mist and rinse-down far better than painted aluminium minis. As a working figure, size your tooling for about 147 N rather than the full rating; that equals hoisting around 12 kg vertically with a factor of two in hand. A magnet comes fitted, so CMSG, DMSG and EMSG switches simply clip onto the barrel.
Airtac MARU Stainless Steel Mini Cylinder MARU25X165S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X165S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 165 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 MARU25X165S
| 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. |
| ×165 | 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 MARU25X165S Is Used
Overhead harness guide
Swing a cable-harness guide arm into position above an assembly bench; the integral top bracket bolts the cylinder flat to the overhead plate.
Carousel bin-door kicker
Flick spring-latched bin doors open in a storage carousel; 245 N at 0.5 MPa overcomes the latch and the cushion stops the slam.
Tray-lid press-off
Pop loose lids off filled trays before filling on a food line; the stainless barrel survives the hourly hose-down.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X165S the Right Cylinder?
Between the 20 mm bore (157 N push at 0.5 MPa) and the 32 mm (402 N), this 25 mm size covers mid-range clamp-and-push jobs. At 165 mm stroke, keep side load off the rod with an external guide. Air loss lets the piston drift, so add a rod lock where position must hold. Magnet is standard and the air port is 1/8" - PT by default, G or NPT on request.
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 MARU25X165S FAQ
The 25 mm bore produces 245.3 N push and 206.1 N pull at 0.5 MPa; 343.4 N push and 288.5 N pull at 0.7 MPa; 50.0 kgf theoretical maximum at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) of 40 um filtered air and cycle anywhere from 30 to 800 mm/s.
No. The up bracket is part of the riveted front cover, so a MARU25X165S bolts directly to your plate without a separate flange or foot. I and Y rod knuckles still fit the M10x1.25 threaded rod. The stainless barrel and hard-chrome rod resist corrosion in wet or dusty plants.
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